Number JDK 1.6)

Description

publicabstract abstract class Number

The abstract class Number is the superclass of classes BigDecimal, BigInteger, Byte, Double, Float, Integer, Long, and Short.

Subclasses of Number must provide methods to convert the represented numeric value to byte, double, float, int, long, and short.

See also: Byte Double Float Integer Long Short

Methods

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public byte byteValue ()

Returns the value of the specified number as a byte.

Returns the value of the specified number as a byte.
This may involve rounding or truncation.
Returns: the numeric value represented by this object after conversion to type byte.
Since: JDK1.1

publicabstract double doubleValue ()

Returns the value of the specified number as a double.

Returns the value of the specified number as a double.
This may involve rounding.
Returns: the numeric value represented by this object after conversion to type double.

publicabstract float floatValue ()

Returns the value of the specified number as a float.

Returns the value of the specified number as a float.
This may involve rounding.
Returns: the numeric value represented by this object after conversion to type float.

publicabstract int intValue ()

Returns the value of the specified number as an int.

Returns the value of the specified number as an int.
This may involve rounding or truncation.
Returns: the numeric value represented by this object after conversion to type int.

publicabstract long longValue ()

Returns the value of the specified number as a long.

Returns the value of the specified number as a long.
This may involve rounding or truncation.
Returns: the numeric value represented by this object after conversion to type long.

public short shortValue ()

Returns the value of the specified number as a short.

Returns the value of the specified number as a short.
This may involve rounding or truncation.
Returns: the numeric value represented by this object after conversion to type short.
Since: JDK1.1