Java by API/java.awt.event/MouseAdapter

Anonymous MouseAdapter

   <source lang="java">

import java.awt.Color; import java.awt.Container; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseMotionAdapter; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass {

 public static void main(String[] args) {
   JFrame aWindow = new JFrame();
   aWindow.setBounds(200, 200, 200, 200);
   aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   Container content = aWindow.getContentPane();
   content.add(new MouseMotionAnonymous());
   aWindow.setVisible(true);
 }

} class MouseMotionAnonymous extends JPanel {

 public MouseMotionAnonymous() {
   setBackground(Color.white);
   addMouseListener(new MouseAdapter() {
     public void mouseReleased(MouseEvent me) {
       setBackground(Color.white);
       repaint();
     }
   });
   addMouseMotionListener(new MouseMotionAdapter() {
     public void mouseDragged(MouseEvent me) {
       setBackground(Color.cyan);
       repaint();
     }
   });
 }

}

      </source>
   
  
 
  

extends MouseAdapter

   <source lang="java">

import java.awt.Color; import java.awt.Container; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.event.MouseMotionAdapter; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass {

 public static void main(String[] args) {
   JFrame aWindow = new JFrame();
   aWindow.setBounds(200, 200, 200, 200);
   aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   Container content = aWindow.getContentPane();
   content.add(new MouseMotionAdapterDemo());
   aWindow.setVisible(true);
 }

} class MouseMotionAdapterDemo extends JPanel {

 public MouseMotionAdapterDemo() {
   setBackground(Color.white);
   addMouseListener(new Adapter1(this));
   addMouseMotionListener(new Adapter2(this));
 }

} class Adapter1 extends MouseAdapter {

 MouseMotionAdapterDemo mmad;
 public Adapter1(MouseMotionAdapterDemo mmad) {
   this.mmad = mmad;
 }
 public void mouseReleased(MouseEvent me) {
   mmad.setBackground(Color.white);
   mmad.repaint();
 }

} class Adapter2 extends MouseMotionAdapter {

 MouseMotionAdapterDemo mmad;
 public Adapter2(MouseMotionAdapterDemo mmad) {
   this.mmad = mmad;
 }
 public void mouseDragged(MouseEvent me) {
   mmad.setBackground(Color.cyan);
   mmad.repaint();
 }

}

      </source>
   
  
 
  

new MouseAdapter()

   <source lang="java">

import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel {

 public MainClass() {
     addMouseListener(new MouseAdapter() { 
         public void mousePressed(MouseEvent me) { 
           System.out.println(me); 
         } 
       }); 
 }
 public static void main(String[] args) {
   JFrame frame = new JFrame();
   frame.getContentPane().add(new MainClass());
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   
   frame.setSize(200, 200);
   frame.setVisible(true);
 }

}

      </source>