Getting class Gui's to show up in other class Gui's

Question

Can you, and if so how do you make them show up, set classes that are extended (say, a JTextField class) to show up in another class (like a panel or Frame). I can't seem to get them to show up. I can't find any relavent topics with a search.
Does my entire GUI have to be made of all methods from the same class????? Help anyone!

Answer 1

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class GUI // in my case I exetended Observable (because I needed to) instead of extends JFrame
public GUI ()
{ JFrame frame = new JFrame();
setTitle ("Title");
addWindowListener (new WindowAdapter ()
public void windowClosing (WindowEvent e)
dispose ();
System.exit (0);
// JPanel p = getMyStuff ()
// use this instead (or a new object of getMyStuff)
frame.getContentPane ().add(new getMyStuff());;
// DON'T pack ();
show ();
public static void main (String [] args)
new GUI ();
class getMyStuff extends JPanel
// you can use anything like this as long as its a component (for adding into other things) - havnen't been able to add an extended Observable yet (I guess I'll have to use a private for each class Observable myObservers = new Observable();
public getMyStuff ()
//JPanel p = new JPanel (); // not needed now
add (new JLabel ("This is a label"));
add (new JTextField (15));
add (new JButton ("Button"));
add (new JTextArea ("Chili is good... mmm"));
add (new JPasswordField (15));
}