2021-06-06 单选框，多选框。_单选框 2021-优快云博客

本文链接：https://blog.youkuaiyun.com/pangiggs/article/details/117636630

这个博客展示了三个Java GUI应用例子，包括使用JButton创建带图标的按钮，以及利用JRadioButton实现单选框和JCheckBox实现多选框的功能。用户可以在界面上进行交互，点击按钮，或者在单选和多选框中进行选择。

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public class JbuttonDemo10 extends JFrame {
    public static void main(String[] args) {
      new JbuttonDemo10();
    }

    public JbuttonDemo10() {
        Container container = this.getContentPane();
        URL url = JbuttonDemo10.class.getResource("002.jpg");
        Icon icon = new ImageIcon(url);
        JButton button = new JButton();
        button.setIcon(icon);
        button.setToolTipText("按了药丸");
        container.add(button);

        this.setVisible(true);
        this.setSize(500,300);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
}

public class JbuttonDemo1 extends JFrame {
    public static void main(String[] args) {
        new JbuttonDemo1();
    }

    public JbuttonDemo1() {
        Container container = this.getContentPane();
        URL url = JbuttonDemo10.class.getResource("002.jpg");
        Icon icon = new ImageIcon(url);
         //单选框
        JRadioButton radioButton = new JRadioButton("活着");
        JRadioButton radioButton1 = new JRadioButton("死了");
        JRadioButton radioButton2 = new JRadioButton("半条命");
       //单选框只能选一个,所以分组. 让用户在组中只能选择一个
        ButtonGroup group = new ButtonGroup();
        group.add(radioButton);
        group.add(radioButton1);
        group.add(radioButton2);
        container.add(radioButton,BorderLayout.CENTER);
        container.add(radioButton1,BorderLayout.NORTH);
        container.add(radioButton2,BorderLayout.SOUTH);
        this.setVisible(true);
        this.setSize(500,300);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
}

public class JbuttonDemo2 extends JFrame {
    public static void main(String[] args) {
        new JbuttonDemo2();
    }

    public JbuttonDemo2() {
        Container container = this.getContentPane();
        URL url = JbuttonDemo10.class.getResource("002.jpg");
        Icon icon = new ImageIcon(url);
        //多选框
        JCheckBox checkBox1 = new JCheckBox("checkBox1");
        JCheckBox checkBox2 = new JCheckBox("checkBox2");
        container.add(checkBox1,BorderLayout.NORTH);
        container.add(checkBox2,BorderLayout.SOUTH);


        this.setVisible(true);
        this.setSize(500,300);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }
}