import javax.swing.*;
import java.awt.event.*;
import java.awt.*;

class TwoButtonWindow extends JFrame {
    private JButton button1 = new JButton("Bing");
    private JButton button2 = new JButton("Bong");
    private JTextField textfield = new JTextField(10);
        
    private class ButtonPressListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            String name = ((JButton)e.getSource()).getText();
            textfield.setText(name);
        }
    } // ButtonPressListener

    private ButtonPressListener listener = new ButtonPressListener();

    public TwoButtonWindow() { 
        Container cp = getContentPane();
        cp.setLayout(new FlowLayout());
        cp.add(button1);
        cp.add(button2);
        cp.add(textfield);;

        button1.addActionListener(listener);
        button2.addActionListener(listener);

        setSize(400, 100);
        setVisible(true);
    }
} // TwoButtonWindow

public class TwoButtons {
    public static void main(String[] args) {
        TwoButtonWindow window = new TwoButtonWindow();
    } // main
} // class Buttons