class MainWindow extends JFrame{
protected JPanel panel1;
MainWindow(String s){
super(s);
this.setSize(800,600);
this.setLocation(200, 100);
this.getContentPane().setBackground(Color.BLACK);
Image image1=this.getToolkit().createImage("MainWindowImage.jpg");
this.setVisible(true);
this.getContentPane().getGraphics().drawImage(image1, 200, 100, this);
}
}
初学，还请不吝赐教，多谢多谢！
------解决方案--------------------
你调用setVisible方法过早，你试下把这个方法放在构造函数的最后
------解决方案--------------------
随便改的
- Java code
class MainWindow extends JFrame{ MainWindow(String s){ super(s); this.setSize(800,600); this.setLocation(200, 100); Image image1=this.getToolkit().createImage("MainWindowImage.jpg"); this.setContentPane(new XPanel(image1)); this.setVisible(true); } class XPanel{ private Image image; public XPanel(Image image){ this.image = image; setBackground(Color.BLACK); } @Override public void paintComponent(Graphics g){ g.drawImage(image, 200, 100, this); } }}