the corrected one...

Code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.event.*;
 
 
 
class Face extends JFrame implements ActionListener 
{
 int a1,a2,a3,a4,a5,a6,b1,b2,b3,b4,b5,b6;
  FacePanel mmp = new FacePanel();
  private JButton smile = new JButton ("Smile");
  private JButton sad = new JButton ("Sad");
...