Java Code:
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();
  }

}