author | amlu |
Fri, 18 Nov 2016 14:39:03 +0800 | |
changeset 42166 | 5582c83b1156 |
parent 40948 | 5869c625afaa |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2016, 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. |
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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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/* |
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* @test |
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* @bug 4944439 |
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* @summary Confirm that numbers where all digits after the decimal separator are 0 |
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* and which are between Long.MIN_VALUE and Long.MAX_VALUE are returned as Long(not double). |
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*/ |
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import java.math.BigDecimal; |
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import java.math.BigInteger; |
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import java.text.DecimalFormat; |
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import java.util.Locale; |
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public class Bug4944439 { |
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static boolean err = false; |
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static DecimalFormat df; |
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public static void main(String[] args) throws Exception { |
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Locale defaultLoc = Locale.getDefault(); |
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Locale.setDefault(Locale.US); |
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df = new DecimalFormat(); |
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String s = "-9223372036854775809"; // Long.MIN_VALUE-1 |
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check_Double(s); |
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test(Long.MIN_VALUE, Long.MIN_VALUE+10); |
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test(-10, 10); |
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test(Long.MAX_VALUE-10, Long.MAX_VALUE-1); |
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s = "9223372036854775807.00"; // Long.MAX_VALUE |
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check_Long(s); |
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s = "9223372036854775808"; // Long.MAX_VALUE+1 |
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check_Double(s); |
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s = "-0.0"; |
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check_Double(s); |
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s = "0.0"; |
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check_Long(s); |
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Locale.setDefault(defaultLoc); |
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if (err) { |
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throw new RuntimeException("Wrong parsing with DecimalFormat"); |
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} |
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} |
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private static void test(long from, long to) throws Exception { |
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for (long l = from; l <= to; l++) { |
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check_Long(Long.toString(l) + ".00"); |
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} |
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} |
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private static void check_Long(String s) throws Exception { |
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Number number = df.parse(s); |
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if (!(number instanceof Long)) { |
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err = true; |
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System.err.println("Failed: DecimalFormat.parse(\"" + s + |
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"\") should return a Long, but returned a " + |
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number.getClass().getName()); |
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} |
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int index = s.indexOf('.'); |
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Long l = Long.valueOf(s.substring(0, index)); |
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if (!l.equals(number)) { |
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err = true; |
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System.err.println("Failed: DecimalFormat.parse(" + s + |
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") should return a Long(" + l + "), but returned " + number); |
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} |
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} |
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private static void check_Double(String s) throws Exception { |
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Number number = df.parse(s); |
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if (!(number instanceof Double)) { |
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err = true; |
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System.err.println("Failed: DecimalFormat.parse(\"" + s + |
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"\") should return a Double, but returned a " + |
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number.getClass().getName()); |
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} |
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Double d = Double.valueOf(s); |
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if (!d.equals(number)) { |
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err = true; |
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System.err.println("Failed: DecimalFormat.parse(" + s + |
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") should return a Double(" + d + "), but returned " + number); |
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} |
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} |
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} |