加载和显示图像

Applet:

Image im;
public void init(){
    im=getImage(getCodeBase(),fileName);
}
public void paint(Graphics g){
    g.drawImage(im,0,0,this);
}

Application:

    Image im;
    public void loadImage(){
        im=Toolkit.getDefaultToolkit().getImage(fileName);
    }
    public void paint(Graphics g){
        g.drawImage(im, 0, 0, this);
    }