class myapplet extends Applet{
    Image      off_screen_buffer;
    Graphics   off_screen;
    Image image1;
    public void init(){
       off_screen_buffer=createImage(400,350);
       off_screen=off_screen_buffer.getGraphics();
       image1 = getImage(applet.getCodeBase(),"aaa.gif");
       off_screen.drawImage(image1,10,10,this);
    }
    public paint(Graphics g){
       g.drawImage(off_screen_buffer);
    }
为什么画不图象？请指点！！

int width =100;
int height =100;
BufferedImage bimg=new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
Image imgBuffer = (Image)bimg;
Graphics gimg= imgBuffer.getGraphics();
gimg.setColor(Color.lightGray);
gimg.clearRect(0,0,thumbSize.width,thumbSize.height);
gimg.setColor(Color.red);
gimg.drawString(statusString,0,10);
gimg.dispose();
//draw imgBuffer in paint()
g.drawImage(imgBuffer,0,0,this.getWidth(),this.getHeight(),null);