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import java.awt.Color;import java.awt.Frame;import java.awt.Graphics;import java.awt.Panel;import java.awt.event.KeyEvent;import java.awt.event.MouseEvent;import java.awt.event.MouseMotionListener;import java.awt.event.*;public class MyTest{   public static void main(String args[]){	   Frame w=new Frame();	   w.setSize(300,400);	   MyPanel mp=new MyPanel();	   w.add(mp);	  w.addMouseMotionListener(mp);	  mp.addMouseMotionListener(mp);	   w.setVisible(true);      }}class MyPanel extends Panel implements MouseMotionListener{	   int x=20;   int y=20;            public void paint(Graphics g){    	     		  g.fillOval(x,y,20,20);    		      	       }     @Override      public void mouseDragged(MouseEvent arg0){      		      	       }     @Override      public void mouseMoved(MouseEvent arg0){      		      	        }          public void MouseDragged(MouseEvent arg0){    	 x=arg0.getX();    	 y=arg0.getY();    	  repaint();      }	                  }

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