How to add a GUI interface to My program?

Question

Hi, I wrote a game program, now, I need a GUI interface for my game to let others to use it esaily, but I have no idear how to do it, where should I add the AWT or Swing code to the game code, if possible, can I use some tools for this task, I think it is much esaier for me to use tool, can I use JBuilder4.0, or visual J++6.0, but I know that visual J++ not support jdk1.3, right? Any other good tool for AWT to use, if possible, where to download please?
thank you!! ^_^

Answer 1

Generally your GUI code might be in a class extending JFrame, for example. It is good practice to try to keep your GUI separate from the rest of your application. So you can control your application from the GUI by public methods in the main part of the code, calling them from the GUI.
This is best done by passing an instance of the main application to the GUI when it is constructed. For example:
public class Host {
  public static void main(String[] args) {
    new Host();
  public Host() {
    GUI iface = new GUI(this);
  public doSomething(int value) {
     // A method that does something,
     // called from the GUI
public class GUI extends JFrame implements actionListener {
  private Host app;
  public GUI(Host parent) {
    app=parent;
    // Do more stuff here
  // Rest of the GUI here
  public void actionPerformed(ActionEvent ev) {
    // Method called as a result of a button press
    // or something...
    app.doSomething(42);
}Hope this helps a bit. Look around on the web for good GUI tutorials.