Java JFrame handle mouse event

import java.awt.BorderLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JFrame;
import javax.swing.JLabel;

public class Main extends JFrame {
  private String details; 
  private final JLabel statusBar = new JLabel("Click the mouse");

  public Main() {
    super("Mouse Clicks and Buttons");
    add(statusBar, BorderLayout.SOUTH);
    addMouseListener(new MouseClickHandler()); // add handler
  }//  ww  w  . j  a va2 s  .c  o  m

  // inner class to handle mouse events
  private class MouseClickHandler extends MouseAdapter {
    // handle mouse-click event and determine which button was pressed
    @Override
    public void mouseClicked(MouseEvent event) {
      int xPos = event.getX(); // get x-position of mouse
      int yPos = event.getY(); // get y-position of mouse

      details += "xPos:"+xPos+" yPos:"+ yPos;
          
      details = String.format("Clicked %d time(s)", event.getClickCount());

      if (event.isMetaDown()) // right mouse button
        details += " with right mouse button";
      else if (event.isAltDown()) // middle mouse button
        details += " with center mouse button";
      else // left mouse button
        details += " with left mouse button";

      statusBar.setText(details);
    }
  }

  public static void main(String[] args) {
    Main Main = new Main();
    Main.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Main.setSize(400, 150);
    Main.setVisible(true);
  }
}