smile

import java.applet.Applet;
import java.awt.event.*;
import java.awt.*;
/*<applet code="smile"width="300" height="400"></applet>*/

public class smile extends Applet implements ActionListener {
    Button ha, sa;
    int f = 0;

    public void init() {
        setBackground(Color.LIGHT_GRAY);
        ha = new Button("happy");
        sa = new Button("sad");
        add(ha);
        add(sa);
        ha.addActionListener(this);
        sa.addActionListener(this);
    }

    public void actionPerformed(ActionEvent ae) {
        String s = ae.getActionCommand();
        if (s.equals("happy"))
            f = 1;
        else
            f = 2;

        repaint();
    }

    public void paint(Graphics g) {

        g.setColor(Color.YELLOW);
        g.fillOval(50, 50, 200, 200);
        g.setColor(Color.BLACK);
        g.drawOval(50, 50, 200, 200);
        g.fillOval(90, 100, 20, 20);
        g.fillOval(190, 100, 20, 20);
        if (f == 1) {
            g.drawArc(100, 130, 100, 50, 0, -180);
        } else if (f == 2) {
            g.drawArc(100, 170, 100, 50, 0, 150);
        }
    }
}