95 lines
3.4 KiB
Java
95 lines
3.4 KiB
Java
/* java.lang.Number
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Copyright (C) 1998, 2001 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.lang;
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import java.io.Serializable;
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/**
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** Number is a generic superclass of all the numeric classes, namely
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** <code>Byte</code>, <code>Short</code>, <code>Integer</code>,
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** <code>Long</code>, <code>Float</code>, and <code>Double</code>.
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**
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** It provides ways to convert from any one value to any other.
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**
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** @author Paul Fisher
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** @author John Keiser
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** @author Warren Levy
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** @since JDK1.0
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**/
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public abstract class Number implements Serializable
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{
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/** Return the value of this <code>Number</code> as a <code>byte</code>.
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** @return the value of this <code>Number</code> as a <code>byte</code>.
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**/
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public byte byteValue()
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{
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return (byte) intValue();
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}
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/** Return the value of this <code>Number</code> as a <code>short</code>.
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** @return the value of this <code>Number</code> as a <code>short</code>.
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**/
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public short shortValue()
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{
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return (short) intValue();
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}
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/** Return the value of this <code>Number</code> as an <code>int</code>.
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** @return the value of this <code>Number</code> as an <code>int</code>.
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**/
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public abstract int intValue();
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/** Return the value of this <code>Number</code> as a <code>long</code>.
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** @return the value of this <code>Number</code> as a <code>long</code>.
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**/
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public abstract long longValue();
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/** Return the value of this <code>Number</code> as a <code>float</code>.
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** @return the value of this <code>Number</code> as a <code>float</code>.
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**/
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public abstract float floatValue();
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/** Return the value of this <code>Number</code> as a <code>float</code>.
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** @return the value of this <code>Number</code> as a <code>float</code>.
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**/
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public abstract double doubleValue();
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private static final long serialVersionUID = -8742448824652078965L;
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}
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