java.lang
Class Number

java.lang.Object
  java.lang.Number

Direct Known Subclasses:

Byte, Double, Float, Integer, Long, Short

public abstract class Number
extends Object

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

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, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Number

public Number()

The basic constructor (often called implicitly).

Method Detail

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

floatValue

public abstract float floatValue()

Return the value of this Number as a float.

Returns:

the float value

doubleValue

public abstract double doubleValue()

Return the value of this Number as a float.

Returns:

the double value

byteValue

public byte byteValue()

Return the value of this Number as a byte.

Returns:

the byte value

Since:

1.1

shortValue

public short shortValue()

Return the value of this Number as a short.

Returns:

the short value

Since:

1.1