SWING: MouseAdapter Class Cheat Sheet

Following is the declaration for java.awt.event.MouseAdapter class

public abstract class MouseAdapter
   extends Object
      implements MouseListener, MouseWheelListener, MouseMotionListener

# Constructors

MouseAdapter()

# Methods

void mouseClicked(MouseEvent e)	Invoked when the mouse button has been clicked (pressed and released) on a component.
void mouseDragged(MouseEvent e)	Invoked when a mouse button is pressed on a component and then dragged.
void mouseEntered(MouseEvent e)	Invoked when the mouse enters a component.
void mouseExited(MouseEvent e)	Invoked when the mouse exits a component.
void mouseMoved(MouseEvent e)	Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.
void mousePressed(MouseEvent e)	Invoked when a mouse button has been pressed on a component.
void mouseReleased(MouseEvent e)	Invoked when a mouse button has been released on a component.
void mouseWheelMoved(MouseWheelEvent e)	Invoked when the mouse wheel is rotated.

# Methods Inherited

• java.lang.Object

# MouseAdapter Example

SwingAdapterDemo.java

package com.simplecheatsheet.gui;

import java.awt.*;
import java.awt.event.*;

public class SwingAdapterDemo {
   private JFrame mainFrame;
   private JLabel headerLabel;
   private JLabel statusLabel;
   private JPanel controlPanel;

   public SwingAdapterDemo(){
      prepareGUI();
   }
   public static void main(String[] args){
      AwtAdapterDemo  awtAdapterDemo = new AwtAdapterDemo();  
      swingAdapterDemo.showMouseAdapterDemo();
   }
   private void prepareGUI(){
      mainFrame = new JFrame("Java SWING Examples");
      mainFrame.setSize(400,400);
      mainFrame.setLayout(new GridLayout(3, 1));

      headerLabel = new JLabel("",JLabel.CENTER );
      statusLabel = new JLabel("",JLabel.CENTER);        
      statusLabel.setSize(350,100);
      
      mainFrame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent windowEvent){
            System.exit(0);
         }        
      });    
      controlPanel = new JPanel();
      controlPanel.setLayout(new FlowLayout());

      mainFrame.add(headerLabel);
      mainFrame.add(controlPanel);
      mainFrame.add(statusLabel);
      mainFrame.setVisible(true);  
   }
   private void showMouseAdapterDemo(){
      headerLabel.setText("Listener in action: MouseAdapter");      
      JPanel panel = new JPanel();      
      panel.setBackground(Color.magenta);
      panel.setLayout(new FlowLayout());        
      
      panel.addMouseListener(new MouseAdapter(){
         public void mouseClicked(MouseEvent e) {
            statusLabel.setText("Mouse Clicked: ("+e.getX()+", "+e.getY() +")");
         }                
      });
      JLabel msglabel 
         = new JLabel("Welcome to TutorialsPoint SWING Tutorial.",JLabel.CENTER);
      
      msglabel.addMouseListener(new MouseAdapter(){
         public void mouseClicked(MouseEvent e) {
            statusLabel.setText("Mouse Clicked: ("+e.getX()+", "+e.getY() +")");
         }                
      });
      panel.add(msglabel);
      controlPanel.add(panel);
      mainFrame.setVisible(true);  
   }
}