Question

怎样给窗体换背景图片java

Answer 1

jContentPane = new JPanel(){
  Image image = new ImageIcon("image\\main.png").getImage();
  public void paintComponent(Graphics g)
  {
    super.paintComponent(g);
    g.drawImage(this.image, 0, 0, getWidth(), getHeight(), 0, 0, this.image.getWidth(null), this.image.getHeight(null), null);
  }
};