GUI编程16：图片按钮、单选框、多选框

视频链接：18、图片按钮、单选框、多选框_哔哩哔哩_bilibilihttps://www.bilibili.com/video/BV1DJ411B75F?p=18&vd_source=b5775c3a4ea16a5306db9c7c1c1486b5

1.图片按钮代码示例

java">package com.yundait.lesson05;

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

public class JButtonDemo01 extends JFrame {

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

        //将一个图片变为一个图标
        URL resource = JButtonDemo01.class.getResource("VCG211239251300.jpg");
        ImageIcon icon = new ImageIcon(resource);

        //将这个图标放在按钮上
        JButton jButton = new JButton();
        jButton.setIcon(icon);
        jButton.setSize(50,50);
        jButton.setToolTipText("这是一个图片按钮");

        //在容器上添加按钮
        container.add(jButton);

        this.setVisible(true);
        this.setSize(600,700);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
    
    public static void main(String[] args) {
        new JButtonDemo01();
    }
}

运行结果：

2.单选框代码示例：

java">package com.yundait.lesson05;

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

public class JButtonDemo02 extends JFrame {

    public JButtonDemo02(){
        Container container = this.getContentPane();
        //单选框
        JRadioButton jRadioButton1 = new JRadioButton("JRadioButton1");
        JRadioButton jRadioButton2 = new JRadioButton("JRadioButton2");
        JRadioButton jRadioButton3 = new JRadioButton("JRadioButton3");

        //创建一个按钮组，把按钮放在组中，组中的按钮只能选择一个
        ButtonGroup buttonGroup = new ButtonGroup();
        buttonGroup.add(jRadioButton1);
        buttonGroup.add(jRadioButton2);
        buttonGroup.add(jRadioButton3);

        //在容器上添加按钮
        container.add(jRadioButton1,BorderLayout.NORTH);
        container.add(jRadioButton2,BorderLayout.CENTER);
        container.add(jRadioButton3,BorderLayout.SOUTH);

        this.setVisible(true);
        this.setSize(600,700);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

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

运行结果：

2.多选框代码示例

java">package com.yundait.lesson05;

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

public class JButtonDemo03 extends JFrame {

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

        //创建多选框
        JCheckBox jCheckBox1 = new JCheckBox("jCheckBox1");
        JCheckBox jCheckBox2 = new JCheckBox("jCheckBox2");

        //将多选框添加到容器中
        container.add(jCheckBox1,BorderLayout.NORTH);
        container.add(jCheckBox2,BorderLayout.CENTER);
        
        this.setVisible(true);
        this.setSize(600,700);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

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

运行结果：