Java/SWT JFace Eclipse/Application Window

First JFace application

import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.*;
/**
 * Your first JFace application
 */
public class HelloWorld extends ApplicationWindow {
  /**
   * HelloWorld constructor
   */
  public HelloWorld() {
    super(null);
  }
  /**
   * Runs the application
   */
  public void run() {
    // Don"t return from open() until window closes
    setBlockOnOpen(true);
    // Open the main window
    open();
    // Dispose the display
    Display.getCurrent().dispose();
  }
  /**
   * Creates the main window"s contents
   * 
   * @param parent the main window
   * @return Control
   */
  protected Control createContents(Composite parent) {
    // Create a Hello, World label
    Label label = new Label(parent, SWT.CENTER);
    label.setText("Hello, World");
    return label;
  }
  /**
   * The application entry point
   * 
   * @param args the command line arguments
   */
  public static void main(String[] args) {
    new HelloWorld().run();
  }
}

Jface ApplicationWindow

/*
SWT/JFace in Action
GUI Design with Eclipse 3.0
Matthew Scarpino, Stephen Holder, Stanford Ng, and Laurent Mihalkovic
ISBN: 1932394273
Publisher: Manning
*/
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
public class WidgetWindow extends ApplicationWindow
{
  public WidgetWindow()
  {
    super(null);
  }
  protected Control createContents(Composite parent)
  {
    getShell().setText("Widget Window");
    parent.setSize(400,250);
    return parent;
  }
  
  public static void main(String[] args)
  {
    WidgetWindow wwin = new WidgetWindow();
    wwin.setBlockOnOpen(true);
    wwin.open();
    Display.getCurrent().dispose();
  }
}

JFace Window

/******************************************************************************
 * All Right Reserved. 
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * 
 * Created on 2004-5-13 14:30:36 by JACK
 * $Id$
 * 
 *****************************************************************************/
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.jface.window.Window;
public class DummyWindow {
  public static void main(String[] args) {
    Window window = new ApplicationWindow(null);
    window.setBlockOnOpen(true);
    int returnStatus = window.open();
  }
}

Simplest ApplicationWindow

/*
SWT/JFace in Action
GUI Design with Eclipse 3.0
Matthew Scarpino, Stephen Holder, Stanford Ng, and Laurent Mihalkovic
ISBN: 1932394273
Publisher: Manning
*/

import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Text;
public class HelloSWT_JFace extends ApplicationWindow {
  public HelloSWT_JFace() {
    super(null);
  }
  protected Control createContents(Composite parent) {
    Text helloText = new Text(parent, SWT.CENTER);
    helloText.setText("Hello SWT and JFace!");
    parent.pack();
    return parent;
  }
  public static void main(String[] args) {
    HelloSWT_JFace awin = new HelloSWT_JFace();
    awin.setBlockOnOpen(true);
    awin.open();
    Display.getCurrent().dispose();
  }
}

Simplest SWT application

/******************************************************************************
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * All right reserved. 
 * 
 * Created on Oct 25, 2003 2:02:04 PM by JACK
 * $Id: HelloWorld.java,v 1.1 2003/12/22 12:07:54 jackwind Exp $
 * 
 * visit: http://www.asprise.ru/swt
 *****************************************************************************/

import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
 * HelloWorld is the simplest SWT application, which displays a Shell with a title. 
 */
public class HelloWorldApplicationWindow {
  public static void main2(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Hello, world!");
    shell.open();    
    
    while(! shell.isDisposed()) {
      if(! display.readAndDispatch()) {// If no more entries in event queue
        display.sleep();
      }
    }
    
    display.dispose();
  }
  
  public static void main(String[] args) {
    ApplicationWindow aw = new ApplicationWindow(null);
    aw.setBlockOnOpen(true);
    aw.open();
  }
}