May 15

draws a circle wherever mouse was pressed #Programming Code Examples #Java/J2EE/J2ME #Advanced Swing 

CircleListener.java A subclass of MouseAdapter that draws a circle wherever mouse was pressed. Illustrates first approach to event-handling with listeners: attaching a separate listener
***********
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;

/** The listener used by CircleDrawer1. Note call
 *  to getSource to obtain reference to the applet.
 *  

 ***************
public class CircleListener extends MouseAdapter {
  private int radius = 25;

  public void mousePressed(MouseEvent event) {
    Applet app = (Applet)event.getSource();
    Graphics g = app.getGraphics();
    g.fillOval(event.getX()-radius,
               event.getY()-radius,
               2*radius,
               2*radius);
  }
}

Note: Brought from our old site: http://www.salearningschool.com/example_codes/ on Jan 2nd, 2017 From: http://sitestree.com/?p=10361
Categories:Programming Code Examples, Java/J2EE/J2ME, Advanced Swing
Tags:Java/J2EE/J2MEAdvanced Swing
Post Data:2017-01-02 16:04:35

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