Java Programming Code Examples

Demonstrating mouse events import java.awt.*; import java.awt.event.*; import javax.swing.*; public class MouseTracker extends JFrame implements MouseListener, MouseMotionListener { private JLabel statusBar; public MouseTracker() { super( "Demonstrating Mouse Events" ); statusBar = new JLabel(); getContentPane().add( statusBar, BorderLayout.SOUTH ); // application listens to its own mouse events addMouseListener( this ); addMouseMotionListener( this ); setSize( 275, 100 ); show(); } // MouseListener event handlers public void mouseClicked( MouseEvent e ) { statusBar.setText( "Clicked at [" + e.getX() + ", " + e.getY() + "]" ); } public void mousePressed( MouseEvent e ) { statusBar.setText( "Pressed at [" + e.getX() + ", " + e.getY() + "]" ); } public void mouseReleased( MouseEvent e ) { statusBar.setText( "Released at [" + e.getX() + ", " + e.getY() + "]" ); } public void mouseEntered( MouseEvent e ) { statusBar.setText( "Mouse in window" ); } public void mouseExited( MouseEvent e ) { statusBar.setText( "Mouse outside window" ); } // MouseMotionListener event handlers public void mouseDragged( MouseEvent e ) { statusBar.setText( "Dragged at [" + e.getX() + ", " + e.getY() + "]" ); } public void mouseMoved( MouseEvent e ) { statusBar.setText( "Moved at [" + e.getX() + ", " + e.getY() + "]" ); } public static void main( String args[] ) { MouseTracker app = new MouseTracker(); app.addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { System.exit( 0 ); } } ); } }