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