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Set Drawing Mode To XOR Example

  1. /*
  2.         Set Drawing Mode To XOR Example
  3.         This java example shows how to set drawing mode to XOR instead of overwrite
  4.         mode using setXORMode method of Graphics class.
  5. */
  6.  
  7. import java.applet.Applet;
  8. import java.awt.Color;
  9. import java.awt.Graphics;
  10.  
  11.  
  12. /*
  13. <applet code="SetXORPaintModeExample" width=200 height=200>
  14. </applet>
  15. */
  16.  
  17. public class SetXORPaintModeExample extends Applet{
  18.  
  19.         public void paint(Graphics g){
  20.                
  21.                 /*
  22.                  * usually, the new drwaing objects overwrites the previously
  23.                  * drawn objects. Setting drwaing mode to XOR mode makes sure
  24.                  * that the existing contents will always be displayed and will
  25.                  * be XORed with the new objects.
  26.                  *
  27.                  * To set mode to XOR mode, use
  28.                  * void setXORMode(Color c)
  29.                  * method of Graphics class.
  30.                  */
  31.                 //setForeground(Color.RED);
  32.                 g.setXORMode(Color.GRAY);
  33.                 g.fillRect(10,10,50,50);
  34.                 g.fillRect(20,30,50,50);
  35.                
  36.                 /*
  37.                  * To set overwrite mode, use
  38.                  * void setPaintMode()
  39.                  * method of Graphics class.
  40.                  */
  41.                 g.setPaintMode();
  42.         }
  43. }

Example Output

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