author | joehw |
Tue, 12 Dec 2017 11:10:12 -0800 | |
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parent 47216 | 71c04702a3d5 |
child 53148 | 17d568776429 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1996, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.io; |
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import java.util.Formatter; |
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import java.util.Locale; |
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import java.nio.charset.Charset; |
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import java.nio.charset.IllegalCharsetNameException; |
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import java.nio.charset.UnsupportedCharsetException; |
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/** |
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* A {@code PrintStream} adds functionality to another output stream, |
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* namely the ability to print representations of various data values |
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* conveniently. Two other features are provided as well. Unlike other output |
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* streams, a {@code PrintStream} never throws an |
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* {@code IOException}; instead, exceptional situations merely set an |
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* internal flag that can be tested via the {@code checkError} method. |
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* Optionally, a {@code PrintStream} can be created so as to flush |
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* automatically; this means that the {@code flush} method is |
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* automatically invoked after a byte array is written, one of the |
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* {@code println} methods is invoked, or a newline character or byte |
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* ({@code '\n'}) is written. |
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* |
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* <p> All characters printed by a {@code PrintStream} are converted into |
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* bytes using the given encoding or charset, or platform's default character |
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* encoding if not specified. |
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* The {@link PrintWriter} class should be used in situations that require |
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* writing characters rather than bytes. |
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* |
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* <p> This class always replaces malformed and unmappable character sequences with |
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* the charset's default replacement string. |
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* The {@linkplain java.nio.charset.CharsetEncoder} class should be used when more |
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* control over the encoding process is required. |
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* |
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* @author Frank Yellin |
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* @author Mark Reinhold |
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* @since 1.0 |
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*/ |
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public class PrintStream extends FilterOutputStream |
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implements Appendable, Closeable |
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{ |
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private final boolean autoFlush; |
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private boolean trouble = false; |
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private Formatter formatter; |
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/** |
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* Track both the text- and character-output streams, so that their buffers |
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* can be flushed without flushing the entire stream. |
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*/ |
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private BufferedWriter textOut; |
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private OutputStreamWriter charOut; |
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/** |
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* requireNonNull is explicitly declared here so as not to create an extra |
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* dependency on java.util.Objects.requireNonNull. PrintStream is loaded |
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* early during system initialization. |
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*/ |
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private static <T> T requireNonNull(T obj, String message) { |
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if (obj == null) |
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throw new NullPointerException(message); |
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return obj; |
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} |
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/** |
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* Returns a charset object for the given charset name. |
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* @throws NullPointerException is csn is null |
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* @throws UnsupportedEncodingException if the charset is not supported |
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*/ |
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private static Charset toCharset(String csn) |
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throws UnsupportedEncodingException |
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{ |
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requireNonNull(csn, "charsetName"); |
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try { |
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return Charset.forName(csn); |
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} catch (IllegalCharsetNameException|UnsupportedCharsetException unused) { |
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// UnsupportedEncodingException should be thrown |
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throw new UnsupportedEncodingException(csn); |
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} |
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} |
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/* Private constructors */ |
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private PrintStream(boolean autoFlush, OutputStream out) { |
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super(out); |
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this.autoFlush = autoFlush; |
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this.charOut = new OutputStreamWriter(this); |
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this.textOut = new BufferedWriter(charOut); |
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} |
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/* Variant of the private constructor so that the given charset name |
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* can be verified before evaluating the OutputStream argument. Used |
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* by constructors creating a FileOutputStream that also take a |
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* charset name. |
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*/ |
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private PrintStream(boolean autoFlush, Charset charset, OutputStream out) { |
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this(out, autoFlush, charset); |
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} |
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/** |
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* Creates a new print stream. This stream will not flush automatically. |
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* |
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* @param out The output stream to which values and objects will be |
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* printed |
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* |
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* @see java.io.PrintWriter#PrintWriter(java.io.OutputStream) |
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*/ |
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public PrintStream(OutputStream out) { |
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this(out, false); |
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} |
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/** |
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* Creates a new print stream. |
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* |
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* @param out The output stream to which values and objects will be |
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* printed |
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* @param autoFlush A boolean; if true, the output buffer will be flushed |
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* whenever a byte array is written, one of the |
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* {@code println} methods is invoked, or a newline |
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* character or byte ({@code '\n'}) is written |
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* |
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* @see java.io.PrintWriter#PrintWriter(java.io.OutputStream, boolean) |
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*/ |
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public PrintStream(OutputStream out, boolean autoFlush) { |
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this(autoFlush, requireNonNull(out, "Null output stream")); |
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} |
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/** |
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* Creates a new print stream. |
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* |
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* @param out The output stream to which values and objects will be |
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* printed |
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* @param autoFlush A boolean; if true, the output buffer will be flushed |
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* whenever a byte array is written, one of the |
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* {@code println} methods is invoked, or a newline |
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* character or byte ({@code '\n'}) is written |
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* @param encoding The name of a supported |
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* <a href="../lang/package-summary.html#charenc"> |
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* character encoding</a> |
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* |
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* @throws UnsupportedEncodingException |
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* If the named encoding is not supported |
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* |
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* @since 1.4 |
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*/ |
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public PrintStream(OutputStream out, boolean autoFlush, String encoding) |
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throws UnsupportedEncodingException |
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{ |
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this(requireNonNull(out, "Null output stream"), autoFlush, toCharset(encoding)); |
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} |
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/** |
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* Creates a new print stream, with the specified OutputStream, automatic line |
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* flushing and charset. This convenience constructor creates the necessary |
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* intermediate {@link java.io.OutputStreamWriter OutputStreamWriter}, |
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* which will encode characters using the provided charset. |
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* |
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* @param out The output stream to which values and objects will be |
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* printed |
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* @param autoFlush A boolean; if true, the output buffer will be flushed |
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* whenever a byte array is written, one of the |
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* {@code println} methods is invoked, or a newline |
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* character or byte ({@code '\n'}) is written |
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* @param charset A {@linkplain java.nio.charset.Charset charset} |
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* |
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* @since 10 |
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*/ |
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public PrintStream(OutputStream out, boolean autoFlush, Charset charset) { |
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super(out); |
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this.autoFlush = autoFlush; |
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this.charOut = new OutputStreamWriter(this, charset); |
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this.textOut = new BufferedWriter(charOut); |
2 | 196 |
} |
197 |
||
198 |
/** |
|
199 |
* Creates a new print stream, without automatic line flushing, with the |
|
200 |
* specified file name. This convenience constructor creates |
|
201 |
* the necessary intermediate {@link java.io.OutputStreamWriter |
|
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* OutputStreamWriter}, which will encode characters using the |
|
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* {@linkplain java.nio.charset.Charset#defaultCharset() default charset} |
|
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* for this instance of the Java virtual machine. |
|
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* |
|
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* @param fileName |
|
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* The name of the file to use as the destination of this print |
|
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* stream. If the file exists, then it will be truncated to |
|
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* zero size; otherwise, a new file will be created. The output |
|
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* will be written to the file and is buffered. |
|
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* |
|
212 |
* @throws FileNotFoundException |
|
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* If the given file object does not denote an existing, writable |
|
214 |
* regular file and a new regular file of that name cannot be |
|
215 |
* created, or if some other error occurs while opening or |
|
216 |
* creating the file |
|
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* |
|
218 |
* @throws SecurityException |
|
219 |
* If a security manager is present and {@link |
|
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* SecurityManager#checkWrite checkWrite(fileName)} denies write |
|
221 |
* access to the file |
|
222 |
* |
|
223 |
* @since 1.5 |
|
224 |
*/ |
|
225 |
public PrintStream(String fileName) throws FileNotFoundException { |
|
226 |
this(false, new FileOutputStream(fileName)); |
|
227 |
} |
|
228 |
||
229 |
/** |
|
230 |
* Creates a new print stream, without automatic line flushing, with the |
|
231 |
* specified file name and charset. This convenience constructor creates |
|
232 |
* the necessary intermediate {@link java.io.OutputStreamWriter |
|
233 |
* OutputStreamWriter}, which will encode characters using the provided |
|
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* charset. |
|
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* |
|
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* @param fileName |
|
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* The name of the file to use as the destination of this print |
|
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* stream. If the file exists, then it will be truncated to |
|
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* zero size; otherwise, a new file will be created. The output |
|
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* will be written to the file and is buffered. |
|
241 |
* |
|
242 |
* @param csn |
|
243 |
* The name of a supported {@linkplain java.nio.charset.Charset |
|
244 |
* charset} |
|
245 |
* |
|
246 |
* @throws FileNotFoundException |
|
247 |
* If the given file object does not denote an existing, writable |
|
248 |
* regular file and a new regular file of that name cannot be |
|
249 |
* created, or if some other error occurs while opening or |
|
250 |
* creating the file |
|
251 |
* |
|
252 |
* @throws SecurityException |
|
253 |
* If a security manager is present and {@link |
|
254 |
* SecurityManager#checkWrite checkWrite(fileName)} denies write |
|
255 |
* access to the file |
|
256 |
* |
|
257 |
* @throws UnsupportedEncodingException |
|
258 |
* If the named charset is not supported |
|
259 |
* |
|
260 |
* @since 1.5 |
|
261 |
*/ |
|
262 |
public PrintStream(String fileName, String csn) |
|
263 |
throws FileNotFoundException, UnsupportedEncodingException |
|
264 |
{ |
|
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// ensure charset is checked before the file is opened |
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this(false, toCharset(csn), new FileOutputStream(fileName)); |
2 | 267 |
} |
268 |
||
269 |
/** |
|
270 |
* Creates a new print stream, without automatic line flushing, with the |
|
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* specified file name and charset. This convenience constructor creates |
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* the necessary intermediate {@link java.io.OutputStreamWriter |
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* OutputStreamWriter}, which will encode characters using the provided |
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* charset. |
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* |
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* @param fileName |
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* The name of the file to use as the destination of this print |
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* stream. If the file exists, then it will be truncated to |
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* zero size; otherwise, a new file will be created. The output |
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* will be written to the file and is buffered. |
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* |
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282 |
* @param charset |
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* A {@linkplain java.nio.charset.Charset charset} |
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* |
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285 |
* @throws IOException |
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* if an I/O error occurs while opening or creating the file |
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|
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* |
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* @throws SecurityException |
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289 |
* If a security manager is present and {@link |
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|
290 |
* SecurityManager#checkWrite checkWrite(fileName)} denies write |
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|
291 |
* access to the file |
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|
292 |
* |
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|
293 |
* @since 10 |
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|
294 |
*/ |
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|
295 |
public PrintStream(String fileName, Charset charset) throws IOException { |
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|
296 |
this(false, requireNonNull(charset, "charset"), new FileOutputStream(fileName)); |
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|
297 |
} |
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|
298 |
|
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|
299 |
/** |
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|
300 |
* Creates a new print stream, without automatic line flushing, with the |
2 | 301 |
* specified file. This convenience constructor creates the necessary |
302 |
* intermediate {@link java.io.OutputStreamWriter OutputStreamWriter}, |
|
303 |
* which will encode characters using the {@linkplain |
|
304 |
* java.nio.charset.Charset#defaultCharset() default charset} for this |
|
305 |
* instance of the Java virtual machine. |
|
306 |
* |
|
307 |
* @param file |
|
308 |
* The file to use as the destination of this print stream. If the |
|
309 |
* file exists, then it will be truncated to zero size; otherwise, |
|
310 |
* a new file will be created. The output will be written to the |
|
311 |
* file and is buffered. |
|
312 |
* |
|
313 |
* @throws FileNotFoundException |
|
314 |
* If the given file object does not denote an existing, writable |
|
315 |
* regular file and a new regular file of that name cannot be |
|
316 |
* created, or if some other error occurs while opening or |
|
317 |
* creating the file |
|
318 |
* |
|
319 |
* @throws SecurityException |
|
320 |
* If a security manager is present and {@link |
|
321 |
* SecurityManager#checkWrite checkWrite(file.getPath())} |
|
322 |
* denies write access to the file |
|
323 |
* |
|
324 |
* @since 1.5 |
|
325 |
*/ |
|
326 |
public PrintStream(File file) throws FileNotFoundException { |
|
327 |
this(false, new FileOutputStream(file)); |
|
328 |
} |
|
329 |
||
330 |
/** |
|
331 |
* Creates a new print stream, without automatic line flushing, with the |
|
332 |
* specified file and charset. This convenience constructor creates |
|
333 |
* the necessary intermediate {@link java.io.OutputStreamWriter |
|
334 |
* OutputStreamWriter}, which will encode characters using the provided |
|
335 |
* charset. |
|
336 |
* |
|
337 |
* @param file |
|
338 |
* The file to use as the destination of this print stream. If the |
|
339 |
* file exists, then it will be truncated to zero size; otherwise, |
|
340 |
* a new file will be created. The output will be written to the |
|
341 |
* file and is buffered. |
|
342 |
* |
|
343 |
* @param csn |
|
344 |
* The name of a supported {@linkplain java.nio.charset.Charset |
|
345 |
* charset} |
|
346 |
* |
|
347 |
* @throws FileNotFoundException |
|
348 |
* If the given file object does not denote an existing, writable |
|
349 |
* regular file and a new regular file of that name cannot be |
|
350 |
* created, or if some other error occurs while opening or |
|
351 |
* creating the file |
|
352 |
* |
|
353 |
* @throws SecurityException |
|
21278 | 354 |
* If a security manager is present and {@link |
2 | 355 |
* SecurityManager#checkWrite checkWrite(file.getPath())} |
356 |
* denies write access to the file |
|
357 |
* |
|
358 |
* @throws UnsupportedEncodingException |
|
359 |
* If the named charset is not supported |
|
360 |
* |
|
361 |
* @since 1.5 |
|
362 |
*/ |
|
363 |
public PrintStream(File file, String csn) |
|
364 |
throws FileNotFoundException, UnsupportedEncodingException |
|
365 |
{ |
|
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// ensure charset is checked before the file is opened |
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|
367 |
this(false, toCharset(csn), new FileOutputStream(file)); |
2 | 368 |
} |
369 |
||
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|
370 |
|
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|
371 |
/** |
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|
372 |
* Creates a new print stream, without automatic line flushing, with the |
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|
373 |
* specified file and charset. This convenience constructor creates |
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|
374 |
* the necessary intermediate {@link java.io.OutputStreamWriter |
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375 |
* OutputStreamWriter}, which will encode characters using the provided |
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|
376 |
* charset. |
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|
377 |
* |
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|
378 |
* @param file |
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|
379 |
* The file to use as the destination of this print stream. If the |
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|
380 |
* file exists, then it will be truncated to zero size; otherwise, |
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|
381 |
* a new file will be created. The output will be written to the |
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|
382 |
* file and is buffered. |
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|
383 |
* |
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|
384 |
* @param charset |
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|
385 |
* A {@linkplain java.nio.charset.Charset charset} |
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|
386 |
* |
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|
387 |
* @throws IOException |
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|
388 |
* if an I/O error occurs while opening or creating the file |
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|
389 |
* |
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|
390 |
* @throws SecurityException |
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|
391 |
* If a security manager is present and {@link |
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|
392 |
* SecurityManager#checkWrite checkWrite(file.getPath())} |
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|
393 |
* denies write access to the file |
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|
394 |
* |
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|
395 |
* @since 10 |
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|
396 |
*/ |
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|
397 |
public PrintStream(File file, Charset charset) throws IOException { |
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|
398 |
this(false, requireNonNull(charset, "charset"), new FileOutputStream(file)); |
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|
399 |
} |
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|
400 |
|
2 | 401 |
/** Check to make sure that the stream has not been closed */ |
402 |
private void ensureOpen() throws IOException { |
|
403 |
if (out == null) |
|
404 |
throw new IOException("Stream closed"); |
|
405 |
} |
|
406 |
||
407 |
/** |
|
408 |
* Flushes the stream. This is done by writing any buffered output bytes to |
|
409 |
* the underlying output stream and then flushing that stream. |
|
410 |
* |
|
411 |
* @see java.io.OutputStream#flush() |
|
412 |
*/ |
|
413 |
public void flush() { |
|
414 |
synchronized (this) { |
|
415 |
try { |
|
416 |
ensureOpen(); |
|
417 |
out.flush(); |
|
418 |
} |
|
419 |
catch (IOException x) { |
|
420 |
trouble = true; |
|
421 |
} |
|
422 |
} |
|
423 |
} |
|
424 |
||
425 |
private boolean closing = false; /* To avoid recursive closing */ |
|
426 |
||
427 |
/** |
|
428 |
* Closes the stream. This is done by flushing the stream and then closing |
|
429 |
* the underlying output stream. |
|
430 |
* |
|
431 |
* @see java.io.OutputStream#close() |
|
432 |
*/ |
|
433 |
public void close() { |
|
434 |
synchronized (this) { |
|
435 |
if (! closing) { |
|
436 |
closing = true; |
|
437 |
try { |
|
438 |
textOut.close(); |
|
439 |
out.close(); |
|
440 |
} |
|
441 |
catch (IOException x) { |
|
442 |
trouble = true; |
|
443 |
} |
|
444 |
textOut = null; |
|
445 |
charOut = null; |
|
446 |
out = null; |
|
447 |
} |
|
448 |
} |
|
449 |
} |
|
450 |
||
451 |
/** |
|
452 |
* Flushes the stream and checks its error state. The internal error state |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
453 |
* is set to {@code true} when the underlying output stream throws an |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
454 |
* {@code IOException} other than {@code InterruptedIOException}, |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
455 |
* and when the {@code setError} method is invoked. If an operation |
2 | 456 |
* on the underlying output stream throws an |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
457 |
* {@code InterruptedIOException}, then the {@code PrintStream} |
2 | 458 |
* converts the exception back into an interrupt by doing: |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
459 |
* <pre>{@code |
2 | 460 |
* Thread.currentThread().interrupt(); |
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
461 |
* }</pre> |
2 | 462 |
* or the equivalent. |
463 |
* |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
464 |
* @return {@code true} if and only if this stream has encountered an |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
465 |
* {@code IOException} other than |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
466 |
* {@code InterruptedIOException}, or the |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
467 |
* {@code setError} method has been invoked |
2 | 468 |
*/ |
469 |
public boolean checkError() { |
|
470 |
if (out != null) |
|
471 |
flush(); |
|
472 |
if (out instanceof java.io.PrintStream) { |
|
473 |
PrintStream ps = (PrintStream) out; |
|
474 |
return ps.checkError(); |
|
475 |
} |
|
476 |
return trouble; |
|
477 |
} |
|
478 |
||
479 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
480 |
* Sets the error state of the stream to {@code true}. |
2 | 481 |
* |
482 |
* <p> This method will cause subsequent invocations of {@link |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
483 |
* #checkError()} to return {@code true} until |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
484 |
* {@link #clearError()} is invoked. |
2 | 485 |
* |
24865
09b1d992ca72
8044740: Convert all JDK versions used in @since tag to 1.n[.n] in jdk repo
henryjen
parents:
23010
diff
changeset
|
486 |
* @since 1.1 |
2 | 487 |
*/ |
488 |
protected void setError() { |
|
489 |
trouble = true; |
|
490 |
} |
|
491 |
||
492 |
/** |
|
493 |
* Clears the internal error state of this stream. |
|
494 |
* |
|
495 |
* <p> This method will cause subsequent invocations of {@link |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
496 |
* #checkError()} to return {@code false} until another write |
2 | 497 |
* operation fails and invokes {@link #setError()}. |
498 |
* |
|
499 |
* @since 1.6 |
|
500 |
*/ |
|
501 |
protected void clearError() { |
|
502 |
trouble = false; |
|
503 |
} |
|
504 |
||
505 |
/* |
|
506 |
* Exception-catching, synchronized output operations, |
|
507 |
* which also implement the write() methods of OutputStream |
|
508 |
*/ |
|
509 |
||
510 |
/** |
|
511 |
* Writes the specified byte to this stream. If the byte is a newline and |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
512 |
* automatic flushing is enabled then the {@code flush} method will be |
2 | 513 |
* invoked. |
514 |
* |
|
515 |
* <p> Note that the byte is written as given; to write a character that |
|
516 |
* will be translated according to the platform's default character |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
517 |
* encoding, use the {@code print(char)} or {@code println(char)} |
2 | 518 |
* methods. |
519 |
* |
|
520 |
* @param b The byte to be written |
|
521 |
* @see #print(char) |
|
522 |
* @see #println(char) |
|
523 |
*/ |
|
524 |
public void write(int b) { |
|
525 |
try { |
|
526 |
synchronized (this) { |
|
527 |
ensureOpen(); |
|
528 |
out.write(b); |
|
529 |
if ((b == '\n') && autoFlush) |
|
530 |
out.flush(); |
|
531 |
} |
|
532 |
} |
|
533 |
catch (InterruptedIOException x) { |
|
534 |
Thread.currentThread().interrupt(); |
|
535 |
} |
|
536 |
catch (IOException x) { |
|
537 |
trouble = true; |
|
538 |
} |
|
539 |
} |
|
540 |
||
541 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
542 |
* Writes {@code len} bytes from the specified byte array starting at |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
543 |
* offset {@code off} to this stream. If automatic flushing is |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
544 |
* enabled then the {@code flush} method will be invoked. |
2 | 545 |
* |
546 |
* <p> Note that the bytes will be written as given; to write characters |
|
547 |
* that will be translated according to the platform's default character |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
548 |
* encoding, use the {@code print(char)} or {@code println(char)} |
2 | 549 |
* methods. |
550 |
* |
|
551 |
* @param buf A byte array |
|
552 |
* @param off Offset from which to start taking bytes |
|
553 |
* @param len Number of bytes to write |
|
554 |
*/ |
|
555 |
public void write(byte buf[], int off, int len) { |
|
556 |
try { |
|
557 |
synchronized (this) { |
|
558 |
ensureOpen(); |
|
559 |
out.write(buf, off, len); |
|
560 |
if (autoFlush) |
|
561 |
out.flush(); |
|
562 |
} |
|
563 |
} |
|
564 |
catch (InterruptedIOException x) { |
|
565 |
Thread.currentThread().interrupt(); |
|
566 |
} |
|
567 |
catch (IOException x) { |
|
568 |
trouble = true; |
|
569 |
} |
|
570 |
} |
|
571 |
||
572 |
/* |
|
573 |
* The following private methods on the text- and character-output streams |
|
574 |
* always flush the stream buffers, so that writes to the underlying byte |
|
575 |
* stream occur as promptly as with the original PrintStream. |
|
576 |
*/ |
|
577 |
||
578 |
private void write(char buf[]) { |
|
579 |
try { |
|
580 |
synchronized (this) { |
|
581 |
ensureOpen(); |
|
582 |
textOut.write(buf); |
|
583 |
textOut.flushBuffer(); |
|
584 |
charOut.flushBuffer(); |
|
585 |
if (autoFlush) { |
|
586 |
for (int i = 0; i < buf.length; i++) |
|
587 |
if (buf[i] == '\n') |
|
588 |
out.flush(); |
|
589 |
} |
|
590 |
} |
|
591 |
} |
|
592 |
catch (InterruptedIOException x) { |
|
593 |
Thread.currentThread().interrupt(); |
|
594 |
} |
|
595 |
catch (IOException x) { |
|
596 |
trouble = true; |
|
597 |
} |
|
598 |
} |
|
599 |
||
600 |
private void write(String s) { |
|
601 |
try { |
|
602 |
synchronized (this) { |
|
603 |
ensureOpen(); |
|
604 |
textOut.write(s); |
|
605 |
textOut.flushBuffer(); |
|
606 |
charOut.flushBuffer(); |
|
607 |
if (autoFlush && (s.indexOf('\n') >= 0)) |
|
608 |
out.flush(); |
|
609 |
} |
|
610 |
} |
|
611 |
catch (InterruptedIOException x) { |
|
612 |
Thread.currentThread().interrupt(); |
|
613 |
} |
|
614 |
catch (IOException x) { |
|
615 |
trouble = true; |
|
616 |
} |
|
617 |
} |
|
618 |
||
619 |
private void newLine() { |
|
620 |
try { |
|
621 |
synchronized (this) { |
|
622 |
ensureOpen(); |
|
623 |
textOut.newLine(); |
|
624 |
textOut.flushBuffer(); |
|
625 |
charOut.flushBuffer(); |
|
626 |
if (autoFlush) |
|
627 |
out.flush(); |
|
628 |
} |
|
629 |
} |
|
630 |
catch (InterruptedIOException x) { |
|
631 |
Thread.currentThread().interrupt(); |
|
632 |
} |
|
633 |
catch (IOException x) { |
|
634 |
trouble = true; |
|
635 |
} |
|
636 |
} |
|
637 |
||
638 |
/* Methods that do not terminate lines */ |
|
639 |
||
640 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
641 |
* Prints a boolean value. The string produced by {@link |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
642 |
* java.lang.String#valueOf(boolean)} is translated into bytes |
2 | 643 |
* according to the platform's default character encoding, and these bytes |
644 |
* are written in exactly the manner of the |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
645 |
* {@link #write(int)} method. |
2 | 646 |
* |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
647 |
* @param b The {@code boolean} to be printed |
2 | 648 |
*/ |
649 |
public void print(boolean b) { |
|
40410 | 650 |
write(String.valueOf(b)); |
2 | 651 |
} |
652 |
||
653 |
/** |
|
654 |
* Prints a character. The character is translated into one or more bytes |
|
655 |
* according to the platform's default character encoding, and these bytes |
|
656 |
* are written in exactly the manner of the |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
657 |
* {@link #write(int)} method. |
2 | 658 |
* |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
659 |
* @param c The {@code char} to be printed |
2 | 660 |
*/ |
661 |
public void print(char c) { |
|
662 |
write(String.valueOf(c)); |
|
663 |
} |
|
664 |
||
665 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
666 |
* Prints an integer. The string produced by {@link |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
667 |
* java.lang.String#valueOf(int)} is translated into bytes |
2 | 668 |
* according to the platform's default character encoding, and these bytes |
669 |
* are written in exactly the manner of the |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
670 |
* {@link #write(int)} method. |
2 | 671 |
* |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
672 |
* @param i The {@code int} to be printed |
2 | 673 |
* @see java.lang.Integer#toString(int) |
674 |
*/ |
|
675 |
public void print(int i) { |
|
676 |
write(String.valueOf(i)); |
|
677 |
} |
|
678 |
||
679 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
680 |
* Prints a long integer. The string produced by {@link |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
681 |
* java.lang.String#valueOf(long)} is translated into bytes |
2 | 682 |
* according to the platform's default character encoding, and these bytes |
683 |
* are written in exactly the manner of the |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
684 |
* {@link #write(int)} method. |
2 | 685 |
* |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
686 |
* @param l The {@code long} to be printed |
2 | 687 |
* @see java.lang.Long#toString(long) |
688 |
*/ |
|
689 |
public void print(long l) { |
|
690 |
write(String.valueOf(l)); |
|
691 |
} |
|
692 |
||
693 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
694 |
* Prints a floating-point number. The string produced by {@link |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
695 |
* java.lang.String#valueOf(float)} is translated into bytes |
2 | 696 |
* according to the platform's default character encoding, and these bytes |
697 |
* are written in exactly the manner of the |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
698 |
* {@link #write(int)} method. |
2 | 699 |
* |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
700 |
* @param f The {@code float} to be printed |
2 | 701 |
* @see java.lang.Float#toString(float) |
702 |
*/ |
|
703 |
public void print(float f) { |
|
704 |
write(String.valueOf(f)); |
|
705 |
} |
|
706 |
||
707 |
/** |
|
708 |
* Prints a double-precision floating-point number. The string produced by |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
709 |
* {@link java.lang.String#valueOf(double)} is translated into |
2 | 710 |
* bytes according to the platform's default character encoding, and these |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
711 |
* bytes are written in exactly the manner of the {@link |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
712 |
* #write(int)} method. |
2 | 713 |
* |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
714 |
* @param d The {@code double} to be printed |
2 | 715 |
* @see java.lang.Double#toString(double) |
716 |
*/ |
|
717 |
public void print(double d) { |
|
718 |
write(String.valueOf(d)); |
|
719 |
} |
|
720 |
||
721 |
/** |
|
722 |
* Prints an array of characters. The characters are converted into bytes |
|
723 |
* according to the platform's default character encoding, and these bytes |
|
724 |
* are written in exactly the manner of the |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
725 |
* {@link #write(int)} method. |
2 | 726 |
* |
727 |
* @param s The array of chars to be printed |
|
728 |
* |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
729 |
* @throws NullPointerException If {@code s} is {@code null} |
2 | 730 |
*/ |
731 |
public void print(char s[]) { |
|
732 |
write(s); |
|
733 |
} |
|
734 |
||
735 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
736 |
* Prints a string. If the argument is {@code null} then the string |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
737 |
* {@code "null"} is printed. Otherwise, the string's characters are |
2 | 738 |
* converted into bytes according to the platform's default character |
739 |
* encoding, and these bytes are written in exactly the manner of the |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
740 |
* {@link #write(int)} method. |
2 | 741 |
* |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
742 |
* @param s The {@code String} to be printed |
2 | 743 |
*/ |
744 |
public void print(String s) { |
|
40410 | 745 |
write(String.valueOf(s)); |
2 | 746 |
} |
747 |
||
748 |
/** |
|
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
diff
changeset
|
749 |
* Prints an object. The string produced by the {@link |
bf24e33c7919
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|
750 |
* java.lang.String#valueOf(Object)} method is translated into bytes |
2 | 751 |
* according to the platform's default character encoding, and these bytes |
752 |
* are written in exactly the manner of the |
|
32033
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|
753 |
* {@link #write(int)} method. |
2 | 754 |
* |
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|
755 |
* @param obj The {@code Object} to be printed |
2 | 756 |
* @see java.lang.Object#toString() |
757 |
*/ |
|
758 |
public void print(Object obj) { |
|
759 |
write(String.valueOf(obj)); |
|
760 |
} |
|
761 |
||
762 |
||
763 |
/* Methods that do terminate lines */ |
|
764 |
||
765 |
/** |
|
766 |
* Terminates the current line by writing the line separator string. The |
|
767 |
* line separator string is defined by the system property |
|
32033
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|
768 |
* {@code line.separator}, and is not necessarily a single newline |
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changeset
|
769 |
* character ({@code '\n'}). |
2 | 770 |
*/ |
771 |
public void println() { |
|
772 |
newLine(); |
|
773 |
} |
|
774 |
||
775 |
/** |
|
776 |
* Prints a boolean and then terminate the line. This method behaves as |
|
32033
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|
777 |
* though it invokes {@link #print(boolean)} and then |
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|
778 |
* {@link #println()}. |
2 | 779 |
* |
32033
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changeset
|
780 |
* @param x The {@code boolean} to be printed |
2 | 781 |
*/ |
782 |
public void println(boolean x) { |
|
783 |
synchronized (this) { |
|
784 |
print(x); |
|
785 |
newLine(); |
|
786 |
} |
|
787 |
} |
|
788 |
||
789 |
/** |
|
790 |
* Prints a character and then terminate the line. This method behaves as |
|
32033
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|
791 |
* though it invokes {@link #print(char)} and then |
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changeset
|
792 |
* {@link #println()}. |
2 | 793 |
* |
32033
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|
794 |
* @param x The {@code char} to be printed. |
2 | 795 |
*/ |
796 |
public void println(char x) { |
|
797 |
synchronized (this) { |
|
798 |
print(x); |
|
799 |
newLine(); |
|
800 |
} |
|
801 |
} |
|
802 |
||
803 |
/** |
|
804 |
* Prints an integer and then terminate the line. This method behaves as |
|
32033
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changeset
|
805 |
* though it invokes {@link #print(int)} and then |
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changeset
|
806 |
* {@link #println()}. |
2 | 807 |
* |
32033
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changeset
|
808 |
* @param x The {@code int} to be printed. |
2 | 809 |
*/ |
810 |
public void println(int x) { |
|
811 |
synchronized (this) { |
|
812 |
print(x); |
|
813 |
newLine(); |
|
814 |
} |
|
815 |
} |
|
816 |
||
817 |
/** |
|
818 |
* Prints a long and then terminate the line. This method behaves as |
|
32033
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changeset
|
819 |
* though it invokes {@link #print(long)} and then |
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
820 |
* {@link #println()}. |
2 | 821 |
* |
32033
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changeset
|
822 |
* @param x a The {@code long} to be printed. |
2 | 823 |
*/ |
824 |
public void println(long x) { |
|
825 |
synchronized (this) { |
|
826 |
print(x); |
|
827 |
newLine(); |
|
828 |
} |
|
829 |
} |
|
830 |
||
831 |
/** |
|
832 |
* Prints a float and then terminate the line. This method behaves as |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
833 |
* though it invokes {@link #print(float)} and then |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
834 |
* {@link #println()}. |
2 | 835 |
* |
32033
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changeset
|
836 |
* @param x The {@code float} to be printed. |
2 | 837 |
*/ |
838 |
public void println(float x) { |
|
839 |
synchronized (this) { |
|
840 |
print(x); |
|
841 |
newLine(); |
|
842 |
} |
|
843 |
} |
|
844 |
||
845 |
/** |
|
846 |
* Prints a double and then terminate the line. This method behaves as |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
847 |
* though it invokes {@link #print(double)} and then |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
848 |
* {@link #println()}. |
2 | 849 |
* |
32033
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changeset
|
850 |
* @param x The {@code double} to be printed. |
2 | 851 |
*/ |
852 |
public void println(double x) { |
|
853 |
synchronized (this) { |
|
854 |
print(x); |
|
855 |
newLine(); |
|
856 |
} |
|
857 |
} |
|
858 |
||
859 |
/** |
|
860 |
* Prints an array of characters and then terminate the line. This method |
|
32033
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changeset
|
861 |
* behaves as though it invokes {@link #print(char[])} and |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
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changeset
|
862 |
* then {@link #println()}. |
2 | 863 |
* |
864 |
* @param x an array of chars to print. |
|
865 |
*/ |
|
866 |
public void println(char x[]) { |
|
867 |
synchronized (this) { |
|
868 |
print(x); |
|
869 |
newLine(); |
|
870 |
} |
|
871 |
} |
|
872 |
||
873 |
/** |
|
874 |
* Prints a String and then terminate the line. This method behaves as |
|
32033
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changeset
|
875 |
* though it invokes {@link #print(String)} and then |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
876 |
* {@link #println()}. |
2 | 877 |
* |
32033
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parents:
25859
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changeset
|
878 |
* @param x The {@code String} to be printed. |
2 | 879 |
*/ |
880 |
public void println(String x) { |
|
881 |
synchronized (this) { |
|
882 |
print(x); |
|
883 |
newLine(); |
|
884 |
} |
|
885 |
} |
|
886 |
||
887 |
/** |
|
888 |
* Prints an Object and then terminate the line. This method calls |
|
889 |
* at first String.valueOf(x) to get the printed object's string value, |
|
890 |
* then behaves as |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
891 |
* though it invokes {@link #print(String)} and then |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
892 |
* {@link #println()}. |
2 | 893 |
* |
32033
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changeset
|
894 |
* @param x The {@code Object} to be printed. |
2 | 895 |
*/ |
896 |
public void println(Object x) { |
|
897 |
String s = String.valueOf(x); |
|
898 |
synchronized (this) { |
|
899 |
print(s); |
|
900 |
newLine(); |
|
901 |
} |
|
902 |
} |
|
903 |
||
904 |
||
905 |
/** |
|
906 |
* A convenience method to write a formatted string to this output stream |
|
907 |
* using the specified format string and arguments. |
|
908 |
* |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
25859
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changeset
|
909 |
* <p> An invocation of this method of the form |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
910 |
* {@code out.printf(format, args)} behaves |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
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changeset
|
911 |
* in exactly the same way as the invocation |
2 | 912 |
* |
32033
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|
913 |
* <pre>{@code |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
914 |
* out.format(format, args) |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
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changeset
|
915 |
* }</pre> |
2 | 916 |
* |
917 |
* @param format |
|
918 |
* A format string as described in <a |
|
919 |
* href="../util/Formatter.html#syntax">Format string syntax</a> |
|
920 |
* |
|
921 |
* @param args |
|
922 |
* Arguments referenced by the format specifiers in the format |
|
923 |
* string. If there are more arguments than format specifiers, the |
|
924 |
* extra arguments are ignored. The number of arguments is |
|
925 |
* variable and may be zero. The maximum number of arguments is |
|
926 |
* limited by the maximum dimension of a Java array as defined by |
|
9266
121fb370f179
7032960: API files in java.awt need to be updated for references to JVM Spec with editions/hyperlinks
jjh
parents:
8166
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changeset
|
927 |
* <cite>The Java™ Virtual Machine Specification</cite>. |
121fb370f179
7032960: API files in java.awt need to be updated for references to JVM Spec with editions/hyperlinks
jjh
parents:
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changeset
|
928 |
* The behaviour on a |
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
929 |
* {@code null} argument depends on the <a |
2 | 930 |
* href="../util/Formatter.html#syntax">conversion</a>. |
931 |
* |
|
18156 | 932 |
* @throws java.util.IllegalFormatException |
2 | 933 |
* If a format string contains an illegal syntax, a format |
934 |
* specifier that is incompatible with the given arguments, |
|
935 |
* insufficient arguments given the format string, or other |
|
936 |
* illegal conditions. For specification of all possible |
|
937 |
* formatting errors, see the <a |
|
938 |
* href="../util/Formatter.html#detail">Details</a> section of the |
|
939 |
* formatter class specification. |
|
940 |
* |
|
941 |
* @throws NullPointerException |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
942 |
* If the {@code format} is {@code null} |
2 | 943 |
* |
944 |
* @return This output stream |
|
945 |
* |
|
946 |
* @since 1.5 |
|
947 |
*/ |
|
948 |
public PrintStream printf(String format, Object ... args) { |
|
949 |
return format(format, args); |
|
950 |
} |
|
951 |
||
952 |
/** |
|
953 |
* A convenience method to write a formatted string to this output stream |
|
954 |
* using the specified format string and arguments. |
|
955 |
* |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
25859
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changeset
|
956 |
* <p> An invocation of this method of the form |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
957 |
* {@code out.printf(l, format, args)} behaves |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
958 |
* in exactly the same way as the invocation |
2 | 959 |
* |
32033
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parents:
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changeset
|
960 |
* <pre>{@code |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
25859
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changeset
|
961 |
* out.format(l, format, args) |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
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changeset
|
962 |
* }</pre> |
2 | 963 |
* |
964 |
* @param l |
|
965 |
* The {@linkplain java.util.Locale locale} to apply during |
|
32033
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8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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changeset
|
966 |
* formatting. If {@code l} is {@code null} then no localization |
2 | 967 |
* is applied. |
968 |
* |
|
969 |
* @param format |
|
970 |
* A format string as described in <a |
|
971 |
* href="../util/Formatter.html#syntax">Format string syntax</a> |
|
972 |
* |
|
973 |
* @param args |
|
974 |
* Arguments referenced by the format specifiers in the format |
|
975 |
* string. If there are more arguments than format specifiers, the |
|
976 |
* extra arguments are ignored. The number of arguments is |
|
977 |
* variable and may be zero. The maximum number of arguments is |
|
978 |
* limited by the maximum dimension of a Java array as defined by |
|
9266
121fb370f179
7032960: API files in java.awt need to be updated for references to JVM Spec with editions/hyperlinks
jjh
parents:
8166
diff
changeset
|
979 |
* <cite>The Java™ Virtual Machine Specification</cite>. |
121fb370f179
7032960: API files in java.awt need to be updated for references to JVM Spec with editions/hyperlinks
jjh
parents:
8166
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changeset
|
980 |
* The behaviour on a |
32033
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
avstepan
parents:
25859
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changeset
|
981 |
* {@code null} argument depends on the <a |
2 | 982 |
* href="../util/Formatter.html#syntax">conversion</a>. |
983 |
* |
|
18156 | 984 |
* @throws java.util.IllegalFormatException |
2 | 985 |
* If a format string contains an illegal syntax, a format |
986 |
* specifier that is incompatible with the given arguments, |
|
987 |
* insufficient arguments given the format string, or other |
|
988 |
* illegal conditions. For specification of all possible |
|
989 |
* formatting errors, see the <a |
|
990 |
* href="../util/Formatter.html#detail">Details</a> section of the |
|
991 |
* formatter class specification. |
|
992 |
* |
|
993 |
* @throws NullPointerException |
|
32033
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changeset
|
994 |
* If the {@code format} is {@code null} |
2 | 995 |
* |
996 |
* @return This output stream |
|
997 |
* |
|
998 |
* @since 1.5 |
|
999 |
*/ |
|
1000 |
public PrintStream printf(Locale l, String format, Object ... args) { |
|
1001 |
return format(l, format, args); |
|
1002 |
} |
|
1003 |
||
1004 |
/** |
|
1005 |
* Writes a formatted string to this output stream using the specified |
|
1006 |
* format string and arguments. |
|
1007 |
* |
|
1008 |
* <p> The locale always used is the one returned by {@link |
|
38786
8e7b0ac05815
8146156: Inconsistent default locale in string formatter methods
naoto
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32033
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changeset
|
1009 |
* java.util.Locale#getDefault(Locale.Category)} with |
8e7b0ac05815
8146156: Inconsistent default locale in string formatter methods
naoto
parents:
32033
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changeset
|
1010 |
* {@link java.util.Locale.Category#FORMAT FORMAT} category specified, |
8e7b0ac05815
8146156: Inconsistent default locale in string formatter methods
naoto
parents:
32033
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changeset
|
1011 |
* regardless of any previous invocations of other formatting methods on |
8e7b0ac05815
8146156: Inconsistent default locale in string formatter methods
naoto
parents:
32033
diff
changeset
|
1012 |
* this object. |
2 | 1013 |
* |
1014 |
* @param format |
|
1015 |
* A format string as described in <a |
|
1016 |
* href="../util/Formatter.html#syntax">Format string syntax</a> |
|
1017 |
* |
|
1018 |
* @param args |
|
1019 |
* Arguments referenced by the format specifiers in the format |
|
1020 |
* string. If there are more arguments than format specifiers, the |
|
1021 |
* extra arguments are ignored. The number of arguments is |
|
1022 |
* variable and may be zero. The maximum number of arguments is |
|
1023 |
* limited by the maximum dimension of a Java array as defined by |
|
9266
121fb370f179
7032960: API files in java.awt need to be updated for references to JVM Spec with editions/hyperlinks
jjh
parents:
8166
diff
changeset
|
1024 |
* <cite>The Java™ Virtual Machine Specification</cite>. |
121fb370f179
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|
1025 |
* The behaviour on a |
32033
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|
1026 |
* {@code null} argument depends on the <a |
2 | 1027 |
* href="../util/Formatter.html#syntax">conversion</a>. |
1028 |
* |
|
18156 | 1029 |
* @throws java.util.IllegalFormatException |
2 | 1030 |
* If a format string contains an illegal syntax, a format |
1031 |
* specifier that is incompatible with the given arguments, |
|
1032 |
* insufficient arguments given the format string, or other |
|
1033 |
* illegal conditions. For specification of all possible |
|
1034 |
* formatting errors, see the <a |
|
1035 |
* href="../util/Formatter.html#detail">Details</a> section of the |
|
1036 |
* formatter class specification. |
|
1037 |
* |
|
1038 |
* @throws NullPointerException |
|
32033
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|
1039 |
* If the {@code format} is {@code null} |
2 | 1040 |
* |
1041 |
* @return This output stream |
|
1042 |
* |
|
1043 |
* @since 1.5 |
|
1044 |
*/ |
|
1045 |
public PrintStream format(String format, Object ... args) { |
|
1046 |
try { |
|
1047 |
synchronized (this) { |
|
1048 |
ensureOpen(); |
|
1049 |
if ((formatter == null) |
|
38786
8e7b0ac05815
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changeset
|
1050 |
|| (formatter.locale() != |
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diff
changeset
|
1051 |
Locale.getDefault(Locale.Category.FORMAT))) |
2 | 1052 |
formatter = new Formatter((Appendable) this); |
38786
8e7b0ac05815
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changeset
|
1053 |
formatter.format(Locale.getDefault(Locale.Category.FORMAT), |
8e7b0ac05815
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changeset
|
1054 |
format, args); |
2 | 1055 |
} |
1056 |
} catch (InterruptedIOException x) { |
|
1057 |
Thread.currentThread().interrupt(); |
|
1058 |
} catch (IOException x) { |
|
1059 |
trouble = true; |
|
1060 |
} |
|
1061 |
return this; |
|
1062 |
} |
|
1063 |
||
1064 |
/** |
|
1065 |
* Writes a formatted string to this output stream using the specified |
|
1066 |
* format string and arguments. |
|
1067 |
* |
|
1068 |
* @param l |
|
1069 |
* The {@linkplain java.util.Locale locale} to apply during |
|
32033
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changeset
|
1070 |
* formatting. If {@code l} is {@code null} then no localization |
2 | 1071 |
* is applied. |
1072 |
* |
|
1073 |
* @param format |
|
1074 |
* A format string as described in <a |
|
1075 |
* href="../util/Formatter.html#syntax">Format string syntax</a> |
|
1076 |
* |
|
1077 |
* @param args |
|
1078 |
* Arguments referenced by the format specifiers in the format |
|
1079 |
* string. If there are more arguments than format specifiers, the |
|
1080 |
* extra arguments are ignored. The number of arguments is |
|
1081 |
* variable and may be zero. The maximum number of arguments is |
|
1082 |
* limited by the maximum dimension of a Java array as defined by |
|
9266
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|
1083 |
* <cite>The Java™ Virtual Machine Specification</cite>. |
121fb370f179
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changeset
|
1084 |
* The behaviour on a |
32033
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parents:
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changeset
|
1085 |
* {@code null} argument depends on the <a |
2 | 1086 |
* href="../util/Formatter.html#syntax">conversion</a>. |
1087 |
* |
|
18156 | 1088 |
* @throws java.util.IllegalFormatException |
2 | 1089 |
* If a format string contains an illegal syntax, a format |
1090 |
* specifier that is incompatible with the given arguments, |
|
1091 |
* insufficient arguments given the format string, or other |
|
1092 |
* illegal conditions. For specification of all possible |
|
1093 |
* formatting errors, see the <a |
|
1094 |
* href="../util/Formatter.html#detail">Details</a> section of the |
|
1095 |
* formatter class specification. |
|
1096 |
* |
|
1097 |
* @throws NullPointerException |
|
32033
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changeset
|
1098 |
* If the {@code format} is {@code null} |
2 | 1099 |
* |
1100 |
* @return This output stream |
|
1101 |
* |
|
1102 |
* @since 1.5 |
|
1103 |
*/ |
|
1104 |
public PrintStream format(Locale l, String format, Object ... args) { |
|
1105 |
try { |
|
1106 |
synchronized (this) { |
|
1107 |
ensureOpen(); |
|
1108 |
if ((formatter == null) |
|
1109 |
|| (formatter.locale() != l)) |
|
1110 |
formatter = new Formatter(this, l); |
|
1111 |
formatter.format(l, format, args); |
|
1112 |
} |
|
1113 |
} catch (InterruptedIOException x) { |
|
1114 |
Thread.currentThread().interrupt(); |
|
1115 |
} catch (IOException x) { |
|
1116 |
trouble = true; |
|
1117 |
} |
|
1118 |
return this; |
|
1119 |
} |
|
1120 |
||
1121 |
/** |
|
1122 |
* Appends the specified character sequence to this output stream. |
|
1123 |
* |
|
32033
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changeset
|
1124 |
* <p> An invocation of this method of the form {@code out.append(csq)} |
2 | 1125 |
* behaves in exactly the same way as the invocation |
1126 |
* |
|
32033
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changeset
|
1127 |
* <pre>{@code |
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changeset
|
1128 |
* out.print(csq.toString()) |
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changeset
|
1129 |
* }</pre> |
2 | 1130 |
* |
32033
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changeset
|
1131 |
* <p> Depending on the specification of {@code toString} for the |
bf24e33c7919
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parents:
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changeset
|
1132 |
* character sequence {@code csq}, the entire sequence may not be |
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changeset
|
1133 |
* appended. For instance, invoking then {@code toString} method of a |
2 | 1134 |
* character buffer will return a subsequence whose content depends upon |
1135 |
* the buffer's position and limit. |
|
1136 |
* |
|
1137 |
* @param csq |
|
32033
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parents:
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changeset
|
1138 |
* The character sequence to append. If {@code csq} is |
bf24e33c7919
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avstepan
parents:
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changeset
|
1139 |
* {@code null}, then the four characters {@code "null"} are |
2 | 1140 |
* appended to this output stream. |
1141 |
* |
|
1142 |
* @return This output stream |
|
1143 |
* |
|
1144 |
* @since 1.5 |
|
1145 |
*/ |
|
1146 |
public PrintStream append(CharSequence csq) { |
|
40410 | 1147 |
print(String.valueOf(csq)); |
2 | 1148 |
return this; |
1149 |
} |
|
1150 |
||
1151 |
/** |
|
1152 |
* Appends a subsequence of the specified character sequence to this output |
|
1153 |
* stream. |
|
1154 |
* |
|
32033
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changeset
|
1155 |
* <p> An invocation of this method of the form |
bf24e33c7919
8132468: docs: replace <tt> tags (obsolete in html5) for java.io, java.lang, java.math
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parents:
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diff
changeset
|
1156 |
* {@code out.append(csq, start, end)} when |
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parents:
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changeset
|
1157 |
* {@code csq} is not {@code null}, behaves in |
2 | 1158 |
* exactly the same way as the invocation |
1159 |
* |
|
32033
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changeset
|
1160 |
* <pre>{@code |
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changeset
|
1161 |
* out.print(csq.subSequence(start, end).toString()) |
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changeset
|
1162 |
* }</pre> |
2 | 1163 |
* |
1164 |
* @param csq |
|
1165 |
* The character sequence from which a subsequence will be |
|
32033
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changeset
|
1166 |
* appended. If {@code csq} is {@code null}, then characters |
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parents:
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changeset
|
1167 |
* will be appended as if {@code csq} contained the four |
bf24e33c7919
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changeset
|
1168 |
* characters {@code "null"}. |
2 | 1169 |
* |
1170 |
* @param start |
|
1171 |
* The index of the first character in the subsequence |
|
1172 |
* |
|
1173 |
* @param end |
|
1174 |
* The index of the character following the last character in the |
|
1175 |
* subsequence |
|
1176 |
* |
|
1177 |
* @return This output stream |
|
1178 |
* |
|
1179 |
* @throws IndexOutOfBoundsException |
|
32033
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changeset
|
1180 |
* If {@code start} or {@code end} are negative, {@code start} |
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changeset
|
1181 |
* is greater than {@code end}, or {@code end} is greater than |
bf24e33c7919
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changeset
|
1182 |
* {@code csq.length()} |
2 | 1183 |
* |
1184 |
* @since 1.5 |
|
1185 |
*/ |
|
1186 |
public PrintStream append(CharSequence csq, int start, int end) { |
|
40410 | 1187 |
if (csq == null) csq = "null"; |
1188 |
return append(csq.subSequence(start, end)); |
|
2 | 1189 |
} |
1190 |
||
1191 |
/** |
|
1192 |
* Appends the specified character to this output stream. |
|
1193 |
* |
|
32033
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avstepan
parents:
25859
diff
changeset
|
1194 |
* <p> An invocation of this method of the form {@code out.append(c)} |
2 | 1195 |
* behaves in exactly the same way as the invocation |
1196 |
* |
|
32033
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|
1197 |
* <pre>{@code |
bf24e33c7919
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changeset
|
1198 |
* out.print(c) |
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parents:
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changeset
|
1199 |
* }</pre> |
2 | 1200 |
* |
1201 |
* @param c |
|
1202 |
* The 16-bit character to append |
|
1203 |
* |
|
1204 |
* @return This output stream |
|
1205 |
* |
|
1206 |
* @since 1.5 |
|
1207 |
*/ |
|
1208 |
public PrintStream append(char c) { |
|
1209 |
print(c); |
|
1210 |
return this; |
|
1211 |
} |
|
1212 |
||
1213 |
} |