package ch5;import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JLayeredPane;
import javax.swing.JPanel;public class JLayeredPaneTest extends Frame
{
public JLayeredPaneTest()
{
final int x=new Integer(100);
int y=new Integer(200);
JLabel j=new JLabel("sadasdsadsadsadsa");
JLabel j1=new JLabel("萨达是决定离开撒娇sadasjdsal");
j.setBounds(20,20,100,100);
j1.setBounds(20,20,100,100);
JLayeredPane main=new JLayeredPane();
JLayeredPane submain=new JLayeredPane();
main.setLayout(new BorderLayout());
JButton b1=new JButton("往上一层");
JButton b2=new JButton("往下一层");
JPanel jpanel=new JPanel();
jpanel.add(b1);
jpanel.add(b2);
main.add(jpanel,BorderLayout.SOUTH);
submain.add(j,x );
submain.add(j1,y );
main.add(submain,BorderLayout.CENTER);}
public static void main(String[] args)
{
JLayeredPaneTest sa=new JLayeredPaneTest();
sa.setBounds(100,100,500,500);
sa.setVisible(true);
}
}
这个程序运行的时候会直接卡死,什么都显示不出来,点×都关不了????
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
System.exit(0);
}
});这样就能实现点×系统退出了。