Trying to make a GUI program

Hey, I'm trying to make a game but this is my first time dealing with GUI components. I want a main menu on the game with four buttons. The buttons are :Infantry Battle", "Tank Battle", "Mixed Battle", and "Exit Wars". However, I am having trouble making the buttons show up on the frame and they are not working. The book I am looking at isn't making much sense to me. Can anyone help me? Here's my code:

import java.awt.*;
import java.awt.event.*;
import jpb.*;

public class War
{
public static void main(String[] args)
{
Frame f = new Frame("Main Menu");
f.setSize(400, 400);
f.setVisible(true);
f.setLocation(300, 300);
}
}

// Frame class
class ButtonTestFrame extends Frame
{
public ButtonTestFrame(String title)
{
super(title);
setLayout(new FlowLayout());
Button exit = new Button("Exit Wars");
add(exit);
exit.addActionListener(new ButtonListener());

// Attach window listener
addWindowListener(new ButtonListener());
}

// Listener for button
class ButtonListener implements ActionListener
{
public void actionPerformed(ActionEvent evt)
{
System.exit(0);
}
}
}
:confused:

I think you need Button exit = new Button(f,"Exit Wars");
Generally when you define a GUI object you need to tell what it's being attached to, in this case the Frame f.
also what method is add? I think you need f.add(exit).

Code:

---

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

class ButtonTestFrameRx extends Frame
{
    public ButtonTestFrameRx(String title)
    {
        super(title);
        setLayout(new FlowLayout());
        Button exit = new Button("Exit Wars");
        add(exit);
        exit.addActionListener(new ButtonListener());

        // Attach window listener
        // An ActionListener won't do as an argument here.
        addWindowListener(new WindowAdapter()
        {
            public void windowClosing(WindowEvent e) {
                quit();
            }
        });
    }

    // Listener for button
    class ButtonListener implements ActionListener
    {
        public void actionPerformed(ActionEvent evt)
        {
            quit();
        }
    }

    private void quit()
    {
        System.exit(0);
    }

    public static void main(String[] args)
    {
        Frame f = new ButtonTestFrameRx("Main Menu");
        f.setSize(400, 400);
        f.setLocation(300, 300);
        f.setVisible(true);
    }
}

---