public abstract class

Number

extends Object
implements Serializable
java.lang.Object
   ↳ java.lang.Number
Known Direct Subclasses

Class Overview

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

Summary

Public Constructors
Number()
Public Methods
byte byteValue()
Returns the value of the specified number as a byte.
abstract double doubleValue()
Returns the value of the specified number as a double.
abstract float floatValue()
Returns the value of the specified number as a float.
abstract int intValue()
Returns the value of the specified number as an int.
abstract long longValue()
Returns the value of the specified number as a long.
short shortValue()
Returns the value of the specified number as a short.
[Expand]
Inherited Methods
From class java.lang.Object

Public Constructors

public Number ()

Public Methods

public byte byteValue ()

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.

public abstract double doubleValue ()

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.

public abstract float floatValue ()

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.

public abstract int intValue ()

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.

public abstract long longValue ()

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. This may involve rounding or truncation.

Returns
  • the numeric value represented by this object after conversion to type short.