复选按钮

package cn.rushangw.lesson05;

import javax.swing.*;
import java.awt.*;

public class JButtonDemo03 extends JFrame {
    public JButtonDemo03() {
        Container container = getContentPane();

         //多选按钮
        JCheckBox checkBox01 = new JCheckBox("checkBox01");
        JCheckBox checkBox02 = new JCheckBox("checkBox02");

        container.add(checkBox01,BorderLayout.SOUTH);
        container.add(checkBox02,BorderLayout.NORTH);



        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setVisible(true);
        setBounds(1,1,500,500);
    }

    public static void main(String[] args) {
        new JButtonDemo03();
    }
}