java.lang

Class Number

java.lang.Object

java.lang.Number

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AtomicInteger, AtomicLong, BigDecimal, BigDecimal, BigInteger, Byte, Double, Float, Integer, Long, PluralRules.FixedDecimal, Short

public abstract class Number
extends Object
implements Serializable

The abstract superclass of the classes which represent numeric base types (that is Byte, Short, Integer, Long, Float, and Double.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Number() Empty default constructor.

Method Summary

Modifier and Type	Method and Description
byte	byteValue() Returns this object's value as a byte.
abstract double	doubleValue() Returns this object's value as a double.
abstract float	floatValue() Returns this object's value as a float.
abstract int	intValue() Returns this object's value as an int.
abstract long	longValue() Returns this object's value as a long.
short	shortValue() Returns this object's value 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()

Empty default constructor.

Method Detail

byteValue

public byte byteValue()

Returns this object's value as a byte. Might involve rounding and/or truncating the value, so it fits into a byte.

Returns:

the primitive byte value of this object.

doubleValue

public abstract double doubleValue()

Returns this object's value as a double. Might involve rounding.

Returns:

the primitive double value of this object.

floatValue

public abstract float floatValue()

Returns this object's value as a float. Might involve rounding.

Returns:

the primitive float value of this object.

intValue

public abstract int intValue()

Returns this object's value as an int. Might involve rounding and/or truncating the value, so it fits into an int.

Returns:

the primitive int value of this object.

longValue

public abstract long longValue()

Returns this object's value as a long. Might involve rounding and/or truncating the value, so it fits into a long.

Returns:

the primitive long value of this object.

shortValue

public short shortValue()

Returns this object's value as a short. Might involve rounding and/or truncating the value, so it fits into a short.

Returns:

the primitive short value of this object.