--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/lang/Number.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,112 @@
+/*
+ * Copyright 1994-2001 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package java.lang;
+
+/**
+ * The abstract class <code>Number</code> is the superclass of classes
+ * <code>BigDecimal</code>, <code>BigInteger</code>,
+ * <code>Byte</code>, <code>Double</code>, <code>Float</code>,
+ * <code>Integer</code>, <code>Long</code>, and <code>Short</code>.
+ * <p>
+ * Subclasses of <code>Number</code> must provide methods to convert
+ * the represented numeric value to <code>byte</code>, <code>double</code>,
+ * <code>float</code>, <code>int</code>, <code>long</code>, and
+ * <code>short</code>.
+ *
+ * @author Lee Boynton
+ * @author Arthur van Hoff
+ * @see java.lang.Byte
+ * @see java.lang.Double
+ * @see java.lang.Float
+ * @see java.lang.Integer
+ * @see java.lang.Long
+ * @see java.lang.Short
+ * @since JDK1.0
+ */
+public abstract class Number implements java.io.Serializable {
+ /**
+ * Returns the value of the specified number as an <code>int</code>.
+ * This may involve rounding or truncation.
+ *
+ * @return the numeric value represented by this object after conversion
+ * to type <code>int</code>.
+ */
+ public abstract int intValue();
+
+ /**
+ * Returns the value of the specified number as a <code>long</code>.
+ * This may involve rounding or truncation.
+ *
+ * @return the numeric value represented by this object after conversion
+ * to type <code>long</code>.
+ */
+ public abstract long longValue();
+
+ /**
+ * Returns the value of the specified number as a <code>float</code>.
+ * This may involve rounding.
+ *
+ * @return the numeric value represented by this object after conversion
+ * to type <code>float</code>.
+ */
+ public abstract float floatValue();
+
+ /**
+ * Returns the value of the specified number as a <code>double</code>.
+ * This may involve rounding.
+ *
+ * @return the numeric value represented by this object after conversion
+ * to type <code>double</code>.
+ */
+ public abstract double doubleValue();
+
+ /**
+ * Returns the value of the specified number as a <code>byte</code>.
+ * This may involve rounding or truncation.
+ *
+ * @return the numeric value represented by this object after conversion
+ * to type <code>byte</code>.
+ * @since JDK1.1
+ */
+ public byte byteValue() {
+ return (byte)intValue();
+ }
+
+ /**
+ * Returns the value of the specified number as a <code>short</code>.
+ * This may involve rounding or truncation.
+ *
+ * @return the numeric value represented by this object after conversion
+ * to type <code>short</code>.
+ * @since JDK1.1
+ */
+ public short shortValue() {
+ return (short)intValue();
+ }
+
+ /** use serialVersionUID from JDK 1.0.2 for interoperability */
+ private static final long serialVersionUID = -8742448824652078965L;
+}