java.lang

Class Number

Implemented Interfaces:
Serializable
Known Direct Subclasses:
AtomicInteger, AtomicLong, BigDecimal, BigInteger, Byte, Double, Float, Integer, Long, Short

public abstract class Number
extends Object
implements Serializable

Number is a generic superclass of all the numeric classes, including the wrapper classes Byte, Short, Integer, Long, Float, and Double. Also worth mentioning are the classes in java.math. It provides ways to convert numeric objects to any primitive.
Since:
1.0
See Also:
Serialized Form

Constructor Summary

Number()
The basic constructor (often called implicitly).

Method Summary

byte
byteValue()
Return the value of this Number as a byte.
abstract double
doubleValue()
Return the value of this Number as a float.
abstract float
floatValue()
Return the value of this Number as a float.
abstract int
intValue()
Return the value of this Number as an int.
abstract long
longValue()
Return the value of this Number as a long.
short
shortValue()
Return the value of this Number as a short.

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Number

public Number()
The basic constructor (often called implicitly).

Method Details

byteValue

public byte byteValue()
Return the value of this Number as a byte.
Returns:
the byte value
Since:
1.1

doubleValue

public abstract double doubleValue()
Return the value of this Number as a float.
Returns:
the double value

floatValue

public abstract float floatValue()
Return the value of this Number as a float.
Returns:
the float value

intValue

public abstract int intValue()
Return the value of this Number as an int.
Returns:
the int value

longValue

public abstract long longValue()
Return the value of this Number as a long.
Returns:
the long value

shortValue

public short shortValue()
Return the value of this Number as a short.
Returns:
the short value
Since:
1.1

Number.java =- abstract superclass of numeric objects Copyright (C) 1998, 2001, 2002, 2005 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath 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 for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.