com.wm.data
Class MDouble

java.lang.Object
  java.lang.Number
      com.wm.data.MDouble

All Implemented Interfaces:

java.io.Serializable

public class MDouble
extends java.lang.Number

This class is a wrapper for double values and is similar to the existing Java wrapper class Double. However, unlike the Double class, MDouble is mutable, allowing you to change the double value that it wraps.

See Also:

MBoolean, MByte, MFloat, MInteger, MLong, MShort, Serialized Form

Constructor Summary

MDouble(double num)
Constructs an MDouble object and sets it to the specified double value.

MDouble(java.lang.String s)
Constructs an MDouble object and sets it according to the value specified in the String parameter, s.

Method Summary

byte	byteValue() Returns the value of this MDouble object as a byte.
double	doubleValue() Returns the value of the MDouble object as a double.
float	floatValue() Returns the value of the MDouble object as a float.
double	getValue() Returns the value of this MDouble object as a double.
int	intValue() Returns the value of the MDouble object as an int.
long	longValue() Returns the value of the MDouble object as a long.
void	setValue(double num) Sets this MDouble object to the specified double value.
short	shortValue() Returns the value of this MDouble object as a short.
java.lang.String	toString() Returns a String representation of this MDouble object's value.

Methods inherited from class java.lang.Object

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

Constructor Detail

MDouble

public MDouble(double num)

Constructs an MDouble object and sets it to the specified double value.

Parameters:

num - A double specifying the value to which you want the new MDouble object set.

MDouble

public MDouble(java.lang.String s)
        throws java.lang.NumberFormatException

Constructs an MDouble object and sets it according to the value specified in the String parameter, s. (The Double object's valueOf method is used to convert the string to a numeric value.)

Parameters:

s - A String specifying the value to which you want the new MDouble object set.

Throws:

java.lang.NumberFormatException - If s does not contain a String that can be successfully converted to a double value.

Method Detail

setValue

public void setValue(double num)

Sets this MDouble object to the specified double value.

Parameters:

num - A double specifying the value to which you want this MDouble object set.

getValue

public double getValue()

Returns the value of this MDouble object as a double.

Returns:

A double that has the numeric value represented by this MDouble object.

toString

public java.lang.String toString()

Returns a String representation of this MDouble object's value. (The Double object's toString method is used to convert the object's value to a String.)

Overrides:

toString in class java.lang.Object

Returns:

A String representation of the numeric value contained in this MDouble object.

byteValue

public byte byteValue()

Returns the value of this MDouble object as a byte.

Overrides:

byteValue in class java.lang.Number

Returns:

A byte that has the numeric value represented by this MFDouble object.

shortValue

public short shortValue()

Returns the value of this MDouble object as a short.

Overrides:

shortValue in class java.lang.Number

Returns:

A short that has the numeric value represented by this MDouble object.

intValue

public int intValue()

Returns the value of the MDouble object as an int.

Specified by:

intValue in class java.lang.Number

Returns:

An int that has the numeric value represented by this MDouble object.

longValue

public long longValue()

Returns the value of the MDouble object as a long.

Specified by:

longValue in class java.lang.Number

Returns:

A long that has the numeric value represented by this MDouble object.

floatValue

public float floatValue()

Returns the value of the MDouble object as a float.

Specified by:

floatValue in class java.lang.Number

Returns:

A float that has the numeric value represented by this MDouble object.

doubleValue

public double doubleValue()

Returns the value of the MDouble object as a double.

Specified by:

doubleValue in class java.lang.Number

Returns:

A double that has the numeric value represented by this MDouble object.