org.hecl

Class DoubleThing

java.lang.Object

org.hecl.NumberThing

org.hecl.FractionalThing

org.hecl.DoubleThing

All Implemented Interfaces:

RealThing

public class DoubleThing
extends FractionalThing

The DoubleThing class represents a Thing that contains a double value.

Constructor Summary

Constructors

Constructor and Description
DoubleThing() Creates a new DoubleThing instance equal to 0.
DoubleThing(boolean b) Creates a new DoubleThing instance from boolean b where true is 1 and false is 0.
DoubleThing(double d) Creates a new DoubleThing instance with value i.
DoubleThing(java.lang.String s) Creates a new DoubleThing instance from string s.

Method Summary

Modifier and Type	Method and Description
byte	byteValue() byteValue returns the number as a byte.
static Thing	create(boolean b) The create method creates and returns a newly allocated Thing with a DoubleThing internal representation.
static Thing	create(double d) The create method creates and returns a newly allocated Thing with a DoubleThing internal representation.
RealThing	deepcopy() deepcopy makes a copy.
double	doubleValue() doubleValue returns the value as a double.
float	floatValue() floatValue returns the value as a float.
static double	get(Thing thing) get attempts to fetch a double value from a Thing.
java.lang.String	getStringRep() getStringRep creates a string representation of the DoubleThing.
int	intValue() intValue returns the number as an int.
long	longValue() longValue returns the value as a long.
void	set(double d) set sets the internal value of a DoubleThing to i.
short	shortValue() shortValue returns the number as a short.
java.lang.String	thingclass()

Methods inherited from class org.hecl.FractionalThing

isFractional, isIntegral

Methods inherited from class org.hecl.NumberThing

asNumber, create, isFractional, isIntegral, isNumber, isNumber

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleThing

public DoubleThing()

Creates a new DoubleThing instance equal to 0.

DoubleThing

public DoubleThing(double d)

Creates a new DoubleThing instance with value i.

Parameters:

d - a double value

DoubleThing

public DoubleThing(boolean b)

Creates a new DoubleThing instance from boolean b where true is 1 and false is 0.

Parameters:

b - a boolean value

DoubleThing

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

Creates a new DoubleThing instance from string s.

Parameters:

s - a String value

Throws:

java.lang.NumberFormatException - when argum,ent does not adhere to floating point number syntax.

Method Detail

thingclass

public java.lang.String thingclass()

create

public static Thing create(double d)

The create method creates and returns a newly allocated Thing with a DoubleThing internal representation.

Parameters:

d - a double value

Returns:

a Thing value

create

public static Thing create(boolean b)

The create method creates and returns a newly allocated Thing with a DoubleThing internal representation.

Parameters:

b - an boolean value

Returns:

a Thing value

get

public static double get(Thing thing)
                  throws HeclException

get attempts to fetch a double value from a Thing.

Parameters:

thing - a Thing value

Returns:

a double value

Throws:

HeclException - if an error occurs

byteValue

public byte byteValue()

Description copied from class: NumberThing

byteValue returns the number as a byte.

Specified by:

byteValue in class NumberThing

Returns:

a byte value

shortValue

public short shortValue()

Description copied from class: NumberThing

shortValue returns the number as a short.

Specified by:

shortValue in class NumberThing

Returns:

a short value

intValue

public int intValue()

Description copied from class: NumberThing

intValue returns the number as an int.

Specified by:

intValue in class NumberThing

Returns:

an int value

longValue

public long longValue()

Description copied from class: NumberThing

longValue returns the value as a long.

Specified by:

longValue in class NumberThing

Returns:

a long value

floatValue

public float floatValue()

Description copied from class: NumberThing

floatValue returns the value as a float. Not available in CLDC 1.0

Specified by:

floatValue in class NumberThing

Returns:

a float value

doubleValue

public double doubleValue()

Description copied from class: NumberThing

doubleValue returns the value as a double. Not available in CLDC 1.0

Specified by:

doubleValue in class NumberThing

Returns:

a double value

set

public void set(double d)

set sets the internal value of a DoubleThing to i.

Parameters:

d - a double value

deepcopy

public RealThing deepcopy()

deepcopy makes a copy.

Specified by:

deepcopy in interface RealThing

Specified by:

deepcopy in class NumberThing

Returns:

a RealThing value

getStringRep

public java.lang.String getStringRep()

getStringRep creates a string representation of the DoubleThing.

Specified by:

getStringRep in interface RealThing

Specified by:

getStringRep in class NumberThing

Returns:

a String value