/*<applet code="AppletSum.class"
  width=420 height=100></applet>*/

//AppletSum.java -Text input with an applet
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class AppletSum extends JApplet implements ActionListener {
    JTextField inputOne = new JTextField(20);
    JTextField inputTwo = new JTextField(20);
    JTextField output   = new JTextField(20);
    JButton foo = new JButton("Foo");

    public void init(){
	Container pane = getContentPane();

	pane.setLayout(new FlowLayout());

	pane.add(new JLabel("Enter one number."));
	pane.add(inputOne);

	pane.add(new JLabel("Enter a number and hit return."));
	pane.add(inputTwo);

	pane.add(new JLabel("Their sum is:"));
	pane.add(output);

	pane.add(new JLabel("The foo button goes here: "));
	pane.add(foo);

	inputTwo.addActionListener(this);
    }

    public void actionPerformed(ActionEvent e){
	double first, second, sum;

	first = Double.parseDouble(inputOne.getText());

	second = Double.parseDouble(inputTwo.getText());

	sum = first + second;

	output.setText(String.valueOf(sum));
    }
}