Module java.desktop
Package java.awt

Class Dimension

java.lang.Object
java.awt.geom.Dimension2D
java.awt.Dimension
All Implemented Interfaces:
Serializable, Cloneable
Direct Known Subclasses:
DimensionUIResource
public class Dimension
extends Dimension2D
implements Serializable
The Dimension class encapsulates the width and height of a component (in integer precision) in a single object. The class is associated with certain properties of components. Several methods defined by the Component class and the LayoutManager interface return a Dimension object.

Normally the values of width and height are non-negative integers. The constructors that allow you to create a dimension do not prevent you from setting a negative value for these properties. If the value of width or height is negative, the behavior of some methods defined by other objects is undefined.

Since:
1.0
See Also:
Component, LayoutManager, Serialized Form

  • Field Summary

    Fields 
    Modifier and Type Field Description
    int height
    The height dimension; negative values can be used.
    int width
    The width dimension; negative values can be used.

  • Constructor Summary

    Constructors 
    Constructor Description
    Dimension()
    Creates an instance of Dimension with a width of zero and a height of zero.
    Dimension​(int width, int height)
    Constructs a Dimension and initializes it to the specified width and specified height.
    Dimension​(Dimension d)
    Creates an instance of Dimension whose width and height are the same as for the specified dimension.

  • Method Summary

    Modifier and Type Method Description
    boolean equals​(Object obj)
    Checks whether two dimension objects have equal values.
    double getHeight()
    Returns the height of this Dimension in double precision.
    Dimension getSize()
    Gets the size of this Dimension object.
    double getWidth()
    Returns the width of this Dimension in double precision.
    int hashCode()
    Returns the hash code for this Dimension.
    void setSize​(double width, double height)
    Sets the size of this Dimension object to the specified width and height in double precision.
    void setSize​(int width, int height)
    Sets the size of this Dimension object to the specified width and height.
    void setSize​(Dimension d)
    Sets the size of this Dimension object to the specified size.
    String toString()
    Returns a string representation of the values of this Dimension object's height and width fields.

    Methods declared in class java.awt.geom.Dimension2D

    clone, setSize

    Methods declared in class java.lang.Object

    finalize, getClass, notify, notifyAll, wait, wait, wait

  • Field Details

  • Constructor Details

    • Dimension

      public Dimension()
      Creates an instance of Dimension with a width of zero and a height of zero.

    • Dimension

      public Dimension​(Dimension d)
      Creates an instance of Dimension whose width and height are the same as for the specified dimension.
      Parameters:
      d - the specified dimension for the width and height values

    • Dimension

      public Dimension​(int width, int height)
      Constructs a Dimension and initializes it to the specified width and specified height.
      Parameters:
      width - the specified width
      height - the specified height

  • Method Details

    • getWidth

      public double getWidth()
      Returns the width of this Dimension in double precision.
      Specified by:
      getWidth in class Dimension2D
      Returns:
      the width of this Dimension.
      Since:
      1.2

    • getHeight

      public double getHeight()
      Returns the height of this Dimension in double precision.
      Specified by:
      getHeight in class Dimension2D
      Returns:
      the height of this Dimension.
      Since:
      1.2

    • setSize

      public void setSize​(double width, double height)
      Sets the size of this Dimension object to the specified width and height in double precision. Note that if width or height are larger than Integer.MAX_VALUE, they will be reset to Integer.MAX_VALUE.
      Specified by:
      setSize in class Dimension2D
      Parameters:
      width - the new width for the Dimension object
      height - the new height for the Dimension object
      Since:
      1.2

    • getSize

      public Dimension getSize()
      Gets the size of this Dimension object. This method is included for completeness, to parallel the getSize method defined by Component.
      Returns:
      the size of this dimension, a new instance of Dimension with the same width and height
      Since:
      1.1
      See Also:
      setSize(double, double), Component.getSize()

    • setSize

      public void setSize​(Dimension d)
      Sets the size of this Dimension object to the specified size. This method is included for completeness, to parallel the setSize method defined by Component.
      Parameters:
      d - the new size for this Dimension object
      Since:
      1.1
      See Also:
      getSize(), Component.setSize(int, int)

    • setSize

      public void setSize​(int width, int height)
      Sets the size of this Dimension object to the specified width and height. This method is included for completeness, to parallel the setSize method defined by Component.
      Parameters:
      width - the new width for this Dimension object
      height - the new height for this Dimension object
      Since:
      1.1
      See Also:
      getSize(), Component.setSize(int, int)

    • equals

      public boolean equals​(Object obj)
      Checks whether two dimension objects have equal values.
      Overrides:
      equals in class Object
      Parameters:
      obj - the reference object with which to compare.
      Returns:
      true if this object is the same as the obj argument; false otherwise.
      See Also:
      Object.hashCode(), HashMap

    • hashCode

      public int hashCode()
      Returns the hash code for this Dimension.
      Overrides:
      hashCode in class Object
      Returns:
      a hash code for this Dimension
      See Also:
      Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

    • toString

      public String toString()
      Returns a string representation of the values of this Dimension object's height and width fields. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.
      Overrides:
      toString in class Object
      Returns:
      a string representation of this Dimension object