hello draw2d 第一个draw2d 的程序

public class HelloDraw2d {

 /**
  * @param args
  */
 public static void main(String[] args) {
  Shell shell = new Shell();
  shell.open();
  shell.setText("Hello draw2d");
  LightweightSystem lws = new LightweightSystem(shell);
  
  IFigure label =  new Label("hello draw2d");
  lws.setContents(label);
  Display display = Display.getDefault();
  while (!shell.isDisposed()) {
   if (!display.readAndDispatch()) {
    display.sleep();
   }
  }
  

 }

}