All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class java.lang.Number 

java.lang.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.

See Also:
Byte, Double, Float, Integer, Long, Short

Constructor Index

o 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 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.
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.
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.
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.
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.
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. 
All Packages  Class Hierarchy  This Package  Previous  Next  Index