58,453
社区成员
发帖
与我相关
我的任务
分享
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;
import javax.swing.JButton;
/**
*
* @author zys59三仙半(QQ:597882752)<br>
* 创建时间:2015年7月10日 上午9:46:37
*/
public class PanelSwap extends JFrame {
private static final long serialVersionUID = 7129848483540888535L;
private JPanel contentPane;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
PanelSwap frame = new PanelSwap();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
//定义3个JPanel,这几个JPanel会被按钮控制分别增加到界面上去
private JPanel p1,p2,p3;
private JPanel panel_1;
public PanelSwap() {
//主窗体的基本设置
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
//分别初始化3个JPanel,在JPanel上增加一个JTextField是为了区分
//对于实际项目就是要显示的项目,很可能需要做成一个独立的类
p1 = new JPanel();
JTextField tf_p1 = new JTextField();
tf_p1.setText("这是Panel——1");
p1.add(tf_p1);
//初始化
p2 = new JPanel();
JTextField tf_p2 = new JTextField();
tf_p2.setText("这是Panel——2");
p2.add(tf_p2);
//初始化
p3 = new JPanel();
JTextField tf_p3 = new JTextField();
tf_p3.setText("这是Panel——3");
p3.add(tf_p3);
//这个JPanel用于容纳3个按钮
JPanel panel = new JPanel();
contentPane.add(panel, BorderLayout.SOUTH);
//3个按钮,点击会分别显示对应的JPanel
JButton btnNewButton = new JButton("显示P1");
btnNewButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
panel_1.removeAll();
panel_1.add(p1, BorderLayout.CENTER);
panel_1.validate();
}
});
panel.add(btnNewButton);
JButton btnNewButton_1 = new JButton("显示P2");
btnNewButton_1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
panel_1.removeAll();
panel_1.add(p2, BorderLayout.CENTER);
panel_1.validate();
}
});
panel.add(btnNewButton_1);
JButton btnNewButton_2 = new JButton("显示P3");
btnNewButton_2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
panel_1.removeAll();
panel_1.add(p3, BorderLayout.CENTER);
panel_1.validate();
}
});
panel.add(btnNewButton_2);
//3个JPanel最终会在这个JPanel中显示
panel_1 = new JPanel();
panel_1.setLayout(new BorderLayout());
contentPane.add(panel_1, BorderLayout.CENTER);
}
}