/** A very simple example of a Java GUI application
 **/

// AWT components and Event classes used:

import java.awt.Button;
import java.awt.Frame;

public class SimpleGUI {

  private Frame appFrame = null;
  private Button doSomethingButton = null;

  public static void main(String[] args) {

    SimpleGUI app = new SimpleGUI();
    app.run();
  }

  /** Constructor: make a frame to hold the GUI components and the
   ** GUI components themselves.
   **/
  public SimpleGUI() {
    appFrame = new Frame("Simple Java GUI");
    doSomethingButton = new Button("Do Nothing");

    appFrame.add(doSomethingButton);
  }

  /** run the application
   **/
  public void run() {
    appFrame.validate();
    appFrame.setVisible(true);
  }
}