1.4 Develop an applet that display the position of the mouse at the upper left corner of the applet when it is dragged or moved. Draw a 10x10 pixel rectangle filed with black at the current mouse position.

MouseSquare.java

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
/*<applet code=MouseSquare.class height=400 width=800>
</applet>
*/
public class MouseSquare extends Applet implements MouseMotionListener
{
    String str="";
    int x,y;
    public void init()
    {
        addMouseMotionListener(this);
    }
    public void paint(Graphics g)
    {
        g.fillRect(x,y,10,10);
        g.drawString("X: "+x+" Y:"+y,20,20);
        showStatus(str);
    }
    public void mouseDragged(MouseEvent e)
    {
        x=e.getX();
        y=e.getY();
        str="X="+x+" Y="+y;
        repaint();
    }
    public void mouseMoved(MouseEvent e)
    {
        x=e.getX();
        y=e.getY();
        str="X="+x+" Y="+y;
        repaint();
    }
    
}

Output



Try code to see proper output

Happy Coding :)