// Addition program
import java.awt.*;
import java.applet.Applet;

public class Addition extends Applet {
   Label prompt;
   TextField input;
   int number;
   int sum;

   public void init () {
      prompt = new Label ("Enter integer and press Enter:");
      input = new TextField (10);
      add (prompt);
      add (input);
      sum = 0;
      }
   
   public boolean action (Event e, Object o) {
      number = Integer.parseInt (o.toString ());
      input.setText ("");
      sum = sum + number;
      showStatus (Integer.toString (sum));
      return true;
      }
   }