SWING - MouseMotionAdapter Class

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Introduction

The class MouseMotionAdapter is an abstract (adapter) class for receiving mouse motion events. All methods of this class are empty. This class is convenience class for creating listener objects.

Class Declaration

Following is the declaration for java.awt.event.MouseMotionAdapter class −

public abstract class MouseMotionAdapter
   extends Object
      implements MouseMotionListener

Class Constructors

Sr.No.	Constructor & Description
1	MouseMotionAdapter()

Class Methods

Sr.No.	Method & Description
1	void mouseDragged(MouseEvent e) Invoked when a mouse button is pressed on a component and then dragged.
2	void mouseMoved(MouseEvent e) Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.

Methods Inherited

This class inherits methods from the following classes −

• java.lang.Object

MouseMotionAdapter Example

Create the following Java program using any editor of your choice in say D:/ > SWING > com > tutorialspoint > gui >

SwingAdapterDemo.java

package com.tutorialspoint.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){
      SwingAdapterDemo  swingAdapterDemo = new SwingAdapterDemo();        
      swingAdapterDemo.showMouseMotionAdapterDemo();
   }
   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 showMouseMotionAdapterDemo(){
      headerLabel.setText("Listener in action: MouseMotionAdapter");      
      JPanel panel = new JPanel();      
      panel.setBackground(Color.magenta);
      panel.setLayout(new FlowLayout());        
      
      panel.addMouseMotionListener(new MouseMotionAdapter(){
         public void mouseMoved(MouseEvent e) {
            statusLabel.setText("Mouse Moved: ("+e.getX()+", "+e.getY() +")");
         }                
      });
      JLabel msglabel 
         = new JLabel("Welcome to TutorialsPoint SWING Tutorial.",JLabel.CENTER);
      
      panel.add(msglabel);
      controlPanel.add(panel);
      mainFrame.setVisible(true);  
   }
}

Compile the program using the command prompt. Go to D:/ > SWING and type the following command.

D:\SWING>javac com\tutorialspoint\gui\SwingAdapterDemo.java

If no error occurs, it means the compilation is successful. Run the program using the following command.

D:\SWING>java com.tutorialspoint.gui.SwingAdapterDemo

Verify the following output.