import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
public class hh extends JFrame{
	Color c;
	hh(){
		this.setSize(200,300);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);
		addKeyListener(new MyType());
		}
	class MyType extends KeyAdapter { 
        public void keyTyped(KeyEvent e) { 
            if(e.getKeyChar()=='r'||e.getKeyChar()=='R')
                c=Color.red;
            else if(e.getKeyChar()=='g'||e.getKeyChar()=='G')
                c=Color.green;
            else if(e.getKeyChar()=='b'||e.getKeyChar()=='B')
                c=Color.blue;
            else 
                c=Color.black;	
            repaint();
        }
    }
    public void paint(Graphics g) {
		g.setColor(c);
		g.fillOval(60,60,100,100);
	}
    public static void main(String args[]){
    	new hh();
    }
}
