Class java.lang.Number 
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Class java.lang.Number 

Object
   |
   +----java.lang.Number
public abstract class Number
extends Object
implements Serializable
The abstract class Number is the superclass of classes 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.

Version:
1.21, 07/01/98
Author:
Lee Boynton, Arthur van Hoff
Since:
JDK1.0
See Also:
Byte, Double, Float, Integer, Long, Short

Constructor Index

o java.lang.Number()

Method Index

o byteValue()
Returns the value of the specified number as a byte.
o doubleValue()
Returns the value of the specified number as a double.
o floatValue()
Returns the value of the specified number as a float.
o intValue()
Returns the value of the specified number as an int.
o longValue()
Returns the value of the specified number as a long.
o shortValue()
Returns the value of the specified number as a short.

Constructors

o Number 
public Number()

Methods

o byteValue 
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.
Since:
JDK1.1
o doubleValue 
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.
Since:
JDK1.0
o floatValue 
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.
Since:
JDK1.0
o intValue 
public abstract int intValue()
Returns the value of the specified number as an int. This may involve rounding.

Returns:
the numeric value represented by this object after conversion to type int.
Since:
JDK1.0
o longValue 
public abstract long longValue()
Returns the value of the specified number as a long. This may involve rounding.

Returns:
the numeric value represented by this object after conversion to type long.
Since:
JDK1.0
o shortValue 
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.
Since:
JDK1.1 
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