MouseListener in Java Swing Example

Mouse event occurs when a mouse related activity is performed on a component such as clicking, dragging, pressing, moving or releasing a mouse etc. Objects representing mouse events are created from MouseEvent class.

There are two listener interfaces corresponding to the MouseEvent Class. These include MouseListener and MouseMotionListener interface. Each listener for MouseEvent should implement the appropriate interface.

Mouse Event 

import javax.swing.*; 
 import java.awt.event.*; 
 import java.awt.*; 
 class MouseListenerExample extends JFrame implements MouseListener 
 { 
        JLabel lblData; 
        JTextArea txtData; 
        MouseListenerExample() 
        { 
          JPanel panel1 = new JPanel(new FlowLayout()); 
          JPanel panel2 = new JPanel(new FlowLayout()); 
          lblData = new JLabel("Press,Release or Click the Mouse on the txtArea to see x,y Coordinates"); 
          txtData = new JTextArea(20,30); 
          txtData.addMouseListener(this); 
          panel1.add(lblData); 
          panel2.add(txtData); 
          add(panel1,BorderLayout.NORTH); 
          add(panel2,BorderLayout.CENTER); 
        } 
        public void mousePressed(MouseEvent e) 
        { 
          String s= "x-Corrdinate = " + e.getX() + "y-Coordinate = " + e.getY(); 
          System.out.println("Mouse Pressed"); 
          txtData.setText(s); 
        } 
          
        public void mouseReleased(MouseEvent e) 
        { 
          String s = "x-Coordinate = " + e.getX() + "y-Coordinate = " + e.getY(); 
          System.out.println("Mouse Released"); 
          txtData.setText(s); 
        } 
        public void mouseClicked(MouseEvent e) 
        { 
          String s= "X-Corrdinate = " + e.getX() + " y-Coordinate = " + e.getY(); 
          System.out.println("Mouse Clicked"); 
          txtData.setText(s); 
        } 
          public void mouseEntered(MouseEvent e) 
            { 
               System.out.println("Mouse Entered"); 
            } 
          public void mouseExited(MouseEvent e)  
           { 
               System.out.println("Mouse Exited"); 
           } 
 } 
        class MouseListenerJavaExample 
       { 
          public static void main(String[] args) 
          { 
             MouseListenerExample frame = new MouseListenerExample(); 
             frame.setTitle(" Mouse Listener Java Swing Example"); 
             frame.setBounds(100,200,500,300); 
             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
             frame.setVisible(true); 
          } 
       }