problem with fullscreen mode

Java 2D
#1

Why does this code don’t work properly.

The screen always flips between een with screen with a green rectangle and my windows desktop with a green rectangle

tankx


.....

Rectangle bounds = mainFrame.getBounds();
        try {      System.out.println("1..");
                    gd.setFullScreenWindow(mainFrame);
                    System.out.println("2..");
                      mainFrame.createBufferStrategy(2);
                    BufferStrategy bufferStrategy = mainFrame.getBufferStrategy();      
                    
                    
                    for(int i=0;i<10;i++)
                    {      Graphics g = bufferStrategy.getDrawGraphics();
                          g.setColor(Color.black);
                          g.fillRect(0,0,bounds.width, bounds.height);
                          g.setColor(Color.green);
                          g.fillRect(i,i,i+30, i+30);
                          bufferStrategy.show();
                          g.dispose();
                          try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {}
                    }
                    
                    System.out.println("4..");
                    
                } 
          finally {      gd.setFullScreenWindow(null);
                              System.out.println("3..");
                        }
.....
#2

it was a stupid, stupid fault.

bounds.width and bounds.height were both 0