testcardlayout.java

自己做的一个QQ聊天系统

package test.gui;

import java.awt.CardLayout;
import java.awt.Color;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class TestCardLayout {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		JFrame frame = new JFrame();
		CardLayout cl = new CardLayout();
		frame.setLayout(cl);
		JPanel p1 = new JPanel();
		JPanel p2 = new JPanel();
		JPanel p3 = new JPanel();
		p1.setBackground(Color.red);
		p2.setBackground(Color.BLUE);
		p3.setBackground(Color.yellow);
		frame.setSize(400,400);
		frame.setVisible(true);
		frame.setDefaultCloseOperation(
				JFrame.EXIT_ON_CLOSE);
		for (int i=0; i<7;i++){
			try {
				Thread.sleep(1000);
			 } catch (InterruptedException e) {
				 e.printStackTrace();
			 }
			 cl.next(frame.getContentPane());
		}
		cl.show(frame.getContentPane(),"p2");

	}

}