Reference > Classes

Double¶

Definition¶

1	`Double var = .... ;`

None

A number of type Double.

Owner	Name	Return Type	Description
Double	constructor(value)	Object	Initialize a 64 bit Double object.
Double	byteValue()	Byte	Returns the value of this Double as a Byte after a narrowing primitive conversion.
Object	getClassName()	String	Returns the string name of this object's class type.
Double	isFinite()	Boolean	Returns "true" if this Double has a finite value; returns "false" otherwise (for NaN and infinity arguments).
Double	isInfinite()	Boolean	Returns "true" if this Double is infinitely large in magnitude, "false" otherwise.
Double	isNaN()	Boolean	Returns "true" if this Double instance is a Not-a-Number (NaN) value, "false" otherwise.
Object	toJson()	String	Returns a string of a json representation of this object.

Double double = new Double(Double value)

Initialize a 64 bit Double object.

Name	Type	Description
value	Double	a double value

Double d = 0.5d;

// d = 0.5

Byte Double::byteValue()

Returns the value of this Double as a Byte after a narrowing primitive conversion.

Double d = 0.5;
d.byteValue();

// d.byteValue() = 0

String Object::getClassName()

Returns the string name of this object's class type.

Returns "true" if this Double has a finite value; returns "false" otherwise (for NaN and infinity arguments).

Double d = 0.5;
d.isFinite();

// d.isFinite() = true

Boolean Double::isInfinite()

Returns "true" if this Double is infinitely large in magnitude, "false" otherwise.

Double d = 0.5;
d.isInfinite();

// d.isInfinite() = false

Returns "true" if this Double instance is a Not-a-Number (NaN) value, "false" otherwise.

Double d = power(-1,0.5d);
d.isNaN();

// d.isNaN() = true

Returns a string of a json representation of this object.