我有兩個面板,並希望他們在我的JFrame中顯示,但是當我嘗試這樣,我只能看到第二個。有人可以幫幫我嗎? :(兩個面板在一個JFrame中?
import javax.swing.JFrame;
public class MainWindow {
CardLayout layout;
JFrame frame;
Player panel1;
Block panel2;
public MainWindow() {
frame = new JFrame("Rechteck");
panel1 = new Player();
panel2 = new Block();
panel1.addKeyListener(new KeyListen(panel1));
frame.add(panel1);
frame.add(panel2);
frame.setSize(500,500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}}
另請參閱[*初始線程*](http://docs.oracle.com/javase/tutorial/uiswing/concurrency/initial.html)。 – trashgod