import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class AdditionApplet extends Applet {
  public void init() {
    final TextField left = new TextField(10);
    final TextField right = new TextField(10);
    final TextField result = new TextField(10);
    Label plus = new Label("+");
    Button compute = new Button("="); 
    add(left);
    add(plus);
    add(right);
    add(compute);
    add(result);
    compute.addActionListener(new ActionListener() {
	public void actionPerformed(ActionEvent e) {
	  int op1 = Integer.parseInt(left.getText());
	  int op2 = Integer.parseInt(right.getText());
	  result.setText(String.valueOf(op1+op2));
	  System.err.println("Dans actionPerformed");
	  result.repaint();
	}
      });
  }
}