edu.neu.ccs
Class XNumber

java.lang.Object
  edu.neu.ccs.XObject
      edu.neu.ccs.XNumber

All Implemented Interfaces:

Cloneable, Serializable, Stringable

Direct Known Subclasses:

XBigDecimal, XBigInteger, XByte, XDouble, XFloat, XInt, XLong, XShort

public abstract class XNumber

extends XObject

Abstract superclass for Stringable objects that wrap a numeric value, whether it is a primitive type or an arbitrary precision representation. The intention of this class is to provide a specification for the required casting operations for wrapper classes. It is documented, though not required that derived classes of this abstract class should police promotion and demotion between types and throw instances of NumberFormatException when such casting operations cannot be safely performed.

Since:

1.0

Version:

2.2

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.neu.ccs.XObject

changeAdapter, VALUE

Constructor Summary

XNumber()

Method Summary

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

Methods inherited from class edu.neu.ccs.XObject

addPropertyChangeListener, addPropertyChangeListener, formatErrorMessage, fromStringData, removePropertyChangeListener, removePropertyChangeListener, toStringArray, toStringData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XNumber

public XNumber()

Method Detail

byteValue

public abstract byte byteValue()

Returns the value of this number as a byte value.

Throws:

NumberFormatException - if the value cannot be promoted or demoted to the type

shortValue

public abstract short shortValue()

Returns the value of this number as a short value.

Throws:

NumberFormatException - if the value cannot be promoted or demoted to the type

intValue

public abstract int intValue()

Returns the value of this number as a int value.

Throws:

NumberFormatException - if the value cannot be promoted or demoted to the type

longValue

public abstract long longValue()

Returns the value of this number as a long value.

Throws:

NumberFormatException - if the value cannot be promoted or demoted to the type

floatValue

public abstract float floatValue()

Returns the value of this number as a float value.

Throws:

NumberFormatException - if the value cannot be promoted or demoted to the type

doubleValue

public abstract double doubleValue()

Returns the value of this number as a double value.

Throws:

NumberFormatException - if the value cannot be promoted or demoted to the type