12. Mouse events - MouseListener and MouseMotionListener

import java.awt.*;
import java.awt.event.*;        // Mouse events
import java.util.logging.Handler;
import javax.swing.*;


public class Gui extends JFrame{

    // Variables
    private JPanel mousepanel;
    private JLabel statusbar;

    // Constructor
    public Gui(){

        super("JFrame's title");
        // setLayout(new BorderLayout());
        mousepanel = new JPanel();
        mousepanel.setBackground(Color.WHITE);
        add(mousepanel, BorderLayout.CENTER);

        statusbar = new JLabel("Default");
        add(statusbar, BorderLayout.SOUTH);

        // Implementing 2 classes
        Handlerclass handler = new Handlerclass();
        mousepanel.addMouseListener(handler);
        mousepanel.addMouseMotionListener(handler);


    }

    // New class
    private class Handlerclass implements MouseListener, MouseMotionListener{

        // MouseListener has 5 methods
        public void mouseClicked(MouseEvent event){
            statusbar.setText(String.format("Clicked at %d %d", event.getX(), event.getY()));
        }
        public void mousePressed(MouseEvent event){
            statusbar.setText(String.format("Pressed at %d %d", event.getX(), event.getY()));
        }
        public void mouseReleased(MouseEvent event){
            statusbar.setText(String.format("Released at %d %d", event.getX(), event.getY()));
        }
        public void mouseEntered(MouseEvent event){
            // When the mouse enters mousepanel
            statusbar.setText("You entered the area of events");
            mousepanel.setBackground(Color.GREEN);
        }
        public void mouseExited(MouseEvent event){
            // When the mouse enters mousepanel
            statusbar.setText("The mouse has left the window");
            mousepanel.setBackground(Color.RED);
        }

        // MouseMotionListener has 2 methods
        @Override
        public void mouseMoved(MouseEvent event) {
            // Without clicking mouse button
            statusbar.setText("You moved the mouse...");
        }

        @Override
        public void mouseDragged(MouseEvent event) {
            statusbar.setText("You are dragging your mouse!");
        }
    }

    // Main Function
    public static void main(String[] args){
        Gui gui = new Gui();
        gui.setDefaultCloseOperation(EXIT_ON_CLOSE);
        gui.setSize(600, 600);
        gui.setVisible(true);
    }

}