Am Desktop ein Event aufrufen?!

import javax.swing.*;
import java.awt.*;
import javax.swing.event.*;
import java.awt.event.*;




public class click extends JFrame implements MouseListener, ActionListener {
    JLabel anzclicks = new JLabel();
    JButton exit = new JButton("Beenden");
    int zaehler=0;

    public click() {
        setTitle("Klick-O-Meter");
        setLayout(new GridLayout(2,1));
        add(anzclicks);
        add(exit);
        exit.addActionListener(this);
        addMouseListener(this);
        pack();
    }

    public static void main(String[] args) {
        click c = new click();
        c.setVisible(true);
    }

    public void actionPerformed(ActionEvent ae) {
        if(ae.getSource() == exit) {
            System.exit(0);
        }
    }

    //MouseListener
    public void mouseClicked(MouseEvent event) {
    }

    public void mouseEntered(MouseEvent event) {
    }

    public void mouseExited(MouseEvent event) {
    }

    public void mousePressed(MouseEvent event) {
        zaehler++;
        anzclicks.setText("                  "+zaehler);
    }

    public void mouseReleased(MouseEvent event) {
    }

}