按钮

• 图片按钮

package com.wang.gui.lesson05;

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

public class JButtonDemo01 extends JFrame {
    public JButtonDemo01(){
        Container container = this.getContentPane();

        //将一个图片变为图标
        URL url = JButtonDemo01.class.getResource("wm1.jpeg");
        Icon icon = new ImageIcon(url);

        //把这个图标放在按钮上
        JButton button = new JButton();
        button.setIcon(icon);
        button.setToolTipText("图片按钮");

        //add
        container.add(button);

        this.setVisible(true);
        this.setSize(500,500);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args){
        new JButtonDemo01();
    }
}

• 单选按钮

package com.wang.gui.lesson05;

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

public class JButtonDemo02 extends JFrame {
    public JButtonDemo02(){
        Container container = this.getContentPane();

        //将一个图片变为图标
        URL url = JButtonDemo02.class.getResource("wm1.jpeg");

        Icon icon = new ImageIcon(url);

        //单选框
        JRadioButton jRadioButton1 = new JRadioButton("JRadioButton1");
        JRadioButton jRadioButton2 = new JRadioButton("JRadioButton2");
        JRadioButton jRadioButton3 = new JRadioButton("JRadioButton3");

        //由于单选框只能选择一个，分组，一个组中只能选择一个
        ButtonGroup group = new ButtonGroup();

        group.add(jRadioButton1);
        group.add(jRadioButton2);
        group.add(jRadioButton3);

        container.add(jRadioButton1,BorderLayout.CENTER);
        container.add(jRadioButton2,BorderLayout.NORTH);
        container.add(jRadioButton3,BorderLayout.SOUTH);

        this.setVisible(true);
        this.setSize(500,500);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args){
        new JButtonDemo02();
    }
}

• 复选按钮

package com.wang.gui.lesson05;

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

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

        //将一个图片变成图标
        URL url = JButtonDemo03.class.getResource("wm1.jpeg");
        ImageIcon imageIcon = new ImageIcon(url);

        //多选框
        JCheckBox checkBox01 = new JCheckBox("checkBox01");
        JCheckBox checkBox02 = new JCheckBox("checkBox02");

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

        this.setVisible(true);
        this.setSize(500,500);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

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