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Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class Dimension2D - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

JavaTM 2 Platform
Standard Edition

java.awt.geom
Class Dimension2D

java.lang.Object
  |
  +--java.awt.geom.Dimension2D
Direct Known Subclasses:
Dimension

public abstract class Dimension2D
extends Object
implements Cloneable

The Dimension2D class is to encapsulate a width and a height dimension.

This class is only the abstract superclass for all objects that store a 2D dimension. The actual storage representation of the sizes is left to the subclass.


Constructor Summary
protected Dimension2D()
          This is an abstract class that cannot be instantiated directly.
 
Method Summary
 Object clone()
          Creates a new object of the same class as this object.
abstract  double getHeight()
          Returns the height of this Dimension in double precision.
abstract  double getWidth()
          Returns the width of this Dimension in double precision.
 void setSize(Dimension2D d)
          Sets the size of this Dimension2D object to match the specified size.
abstract  void setSize(double width, double height)
          Sets the size of this Dimension object to the specified width and height.
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Dimension2D

protected Dimension2D()
This is an abstract class that cannot be instantiated directly. Type-specific implementation subclasses are available for instantiation and provide a number of formats for storing the information necessary to satisfy the various accessor methods below.
See Also:
Dimension
Method Detail

getWidth

public abstract double getWidth()
Returns the width of this Dimension in double precision.
Returns:
the width of this Dimension.

getHeight

public abstract double getHeight()
Returns the height of this Dimension in double precision.
Returns:
the height of this Dimension.

setSize

public abstract void setSize(double width,
                             double height)
Sets the size of this Dimension object to the specified width and height. This method is included for completeness, to parallel the getSize method of Component.
Parameters:
width - the new width for the Dimension object
height - the new height for the Dimension object

setSize

public void setSize(Dimension2D d)
Sets the size of this Dimension2D object to match the specified size. This method is included for completeness, to parallel the getSize method of Component.
Parameters:
d - the new size for the Dimension2D object

clone

public Object clone()
Creates a new object of the same class as this object.
Overrides:
clone in class Object
Returns:
a clone of this instance.
Throws:
OutOfMemoryError - if there is not enough memory.
Since:
JDK1.2
See Also:
Cloneable

JavaTM 2 Platform
Standard Edition

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