// import the packages
import java.awt.Graphics;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import javax.swing.JFrame;
@SuppressWarnings("serial")
 //class definition
public class SmileFace extends JFrame {
 //initialize the face co-ordinates
 private final int FACEDIAMETER = 200;
 private final int XFACE = 100;
 private final int YFACE = 100;

 //initialize the eye co-ordinates
 private final int EYEWIDTH = 20;
 private final int EYEHEIGHT = 10;
 private final int X_RIGHTEYE = XFACE + 35;
 private final int Y_RIGHTEYE = YFACE + 60;
 private final int X_LEFTEYE = XFACE + 130;
 private final int Y_LEFTEYE = XFACE + 60;

 //initialize the mouth co-ordinates
 private final int MOUTHWIDTH = 100;
 private final int MOUTHHEIGHT = 50;
 private final int XMOUTH = XFACE + 50;
 private final int YMOUTH = YFACE + 100;
 private final int MOUTH_STARTANGLE = 180;
 private final int MOUTH_ARCSWEEP = 180;

 private boolean activated;

 // default constructor definition
 public SmileFace() {
  super("Smile or Frown");
  setSize(400, 400);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  activated = true;
  addWindowListener(new CheckActivated());
 }

 // paint method definition
 public void paint(Graphics g) {
  super.paint(g);

  g.drawOval(XFACE, YFACE, FACEDIAMETER, FACEDIAMETER);

  g.fillOval(X_RIGHTEYE, Y_RIGHTEYE, EYEWIDTH, EYEHEIGHT);
  g.fillOval(X_LEFTEYE, Y_LEFTEYE, EYEWIDTH, EYEHEIGHT);

  if (activated) {
   g.drawArc(XMOUTH, YMOUTH, MOUTHWIDTH, MOUTHHEIGHT, MOUTH_STARTANGLE, MOUTH_ARCSWEEP);
  } else {
   g.drawArc(XMOUTH, YMOUTH, MOUTHWIDTH, MOUTHHEIGHT, MOUTH_STARTANGLE, -MOUTH_ARCSWEEP);
  }
 }

 // CheckActivated class implements with windows listener
 private class CheckActivated implements WindowListener {

  // windowActivated method definition
  public void windowActivated(WindowEvent w) {
   activated = true;
   repaint();
  }

  // windowDeactivated method definition
  public void windowDeactivated(WindowEvent w) {
   activated = false;
   repaint();
  }

  public void windowDeiconified(WindowEvent w) {}

  public void windowIconified(WindowEvent w) {}

  public void windowOpened(WindowEvent w) {}

  public void windowClosed(WindowEvent w) {}

  public void windowClosing(WindowEvent w) {}

 }

 // main method definition
 public static void main(String args[]) {
  //create the object for class
  SmileFace pic = new SmileFace();
  pic.setVisible(true);
 }
}