如何在Java中将图像置于前台？

Question

I'm trying to create a Pacman game in Java, and so far I've displayed the background image (the blue and black maze), but I'm having trouble showing the image of Pacman. When I try to display him in the same method with which I displayed the background, he doesn't appear unless I slightly manually alter the size of the Jframe. And even then when he appears there's a small white square in the bottom right corner of his image. What can I do to fix this? Is there any other way I can insert the pacman image in that works?

This is the code:

  JFrame window = new JFrame();

  ImageImplement pacman = new ImageImplement(new ImageIcon("C:\\Users\\16ayoubc\\Desktop\\Pacman-moving.gif").getImage());  
  ImageImplement panel = new ImageImplement(new ImageIcon("C:\\Users\\16ayoubc\\Desktop\\background.png").getImage());

  pacman.setLocation(255, 255);
  pacman.setVisible(true);
  pacman.setOpaque(true);
  window.add(pacman);
  window.add(panel);

  window.setVisible(true);
  window.setSize(576,655);
  window.setName("Pacman");
  window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Answer 1

将窗口直接插入的JLayeredPane用作容器，并在添加组件时指定组件的深度 （z顺序）。

Answer 2

window.add(pacman);
window.add(panel);

You're adding pacman before you add the background, so it is drawing over the pacman sprite and you are not seeing it. Make sure you draw your items in the game in reverse order, so draw the background first, then pacman.

Answer 3

 window.add(pacman);
 window.add(panel);

You can't add two components to the CENTER of a BorderLayout.

If you want the pacman to appear on the panel then you add the pacman to the window:

//window.add(pacman);
panel.add(packman)
window.add(panel);