62,614
社区成员
发帖
与我相关
我的任务
分享
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
/**
* @author bzwm
*
*/
public class A extends JFrame{
public A(){
final JPanel p1 = new JPanel();
final JPanel p2 = new JPanel(new FlowLayout());
JButton b = new JButton("ts...");
b.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
p2.add(new JButton("....."));
p2.validate();
}
});
p1.add(b);
add(p1, BorderLayout.NORTH);
add(p2, BorderLayout.CENTER);
setVisible(true);
setSize(300, 300);
}
public static void main(String args[]){
new A();
}
}