import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class Question extends Applet implements ActionListener
{
   TextField firstNum, secondNum, resultNum;
   public Question()
   {
      setLayout(new GridLayout(3, 2, 10, 15));
      setBackground(Color.cyan);

      firstNum = new TextField(15);
      secondNum = new TextField(15);
      resultNum = new TextField(15);

      secondNum.addActionListener(this);

      add(new Label("Enter First Number"));
      add(firstNum);
      add(new Label("Enter Second Number"));
      add(secondNum);
      add(new Label("S U M"));
      add(resultNum);
   }
   public void actionPerformed(ActionEvent e)
   {
      String str1 = firstNum.getText();
      double fn = Double.parseDouble(str1);
      double sn = Double.parseDouble(secondNum.getText());

      resultNum.setText("Sum is " + (fn+sn));
   }
}