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我正在尝试将图像加载到我的 Java 小程序中,并且我已经尝试了几种方法,但图像仍然没有出现在小程序中。

这是我的代码:

public class BackgroundApplet extends Applet {
   Image backGround;
   Image fish;

   public void init() {
       // set the size of the applet to the size of the background image.
       // Resizing the applet may cause distortion of the image.
       setSize(300,300);
       // Set the image name to the background you want. Assumes the image is in 
       // the same directory as the class file is
       backGround = getImage(getCodeBase(),"underwater.jpg");
       BackGroundPanel bgp = new BackGroundPanel();
       bgp.setLayout(new FlowLayout());
       bgp.setBackGroundImage(backGround);
       // set the layout of the applet to Border Layout
       setLayout(new BorderLayout());
       // now adding the panel, adds to the center(by default in Border Layout) of the applet
       add(bgp);

       fish = getImage(getCodeBase(), "fish.jpg");
   }

   public void paint(Graphics g)
   {
       // Attempt 1
       g.drawImage(fish,20,20,this);
       // Attempt 2
       ImageIcon img = new ImageIcon("fish.jpg");
       img.paintIcon(this, g, 20,20);
       // Attempt 3
       Image image = img.getImage();
       g.drawImage(image, 50, 50, this);
   }}

如您所见,我还将背景图像加载到我的小程序中,并且显示效果很好。难道是鱼在背景图像后面加载?

任何帮助表示赞赏,谢谢!

**无关注意:我实现Runnable接口时(因为我想在背景图上面有动画),运行小程序时背景图突然不出现了。对此也有任何提示吗?

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