Java学习49---图片按钮、单选框、多选框

本文链接：https://blog.youkuaiyun.com/JAvasmallwrite/article/details/124127762

这三个示例展示了如何在Java Swing中使用JButton创建带有图片的按钮，并分别介绍JRadioButton的单选功能和JCheckBox的多选功能。通过实例代码学习如何集成这些组件到窗口界面中。

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public class JButtonDemo01 extends JFrame {
    public JButtonDemo01(){
        Container container =this.getContentPane();
        //将一个图片变为图标
        //URL resource = JButtonDemo01.class.getResource("1.jpg");
        //Icon icon = new ImageIcon(resource);

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

        //add
        container.add(button);

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

    }

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

    }
}

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public class JButtonDemo02 extends JFrame {
    public JButtonDemo02(){
        Container container =this.getContentPane();
        //将一个图片变为图标
        //URL resource = JButtonDemo01.class.getResource("1.jpg");
        //Icon icon = new ImageIcon(resource);

       //单选框】
        JRadioButton radioButton01 = new JRadioButton("JRadioButton01");
        JRadioButton radioButton02 = new JRadioButton("JRadioButton02");
        JRadioButton radioButton03 = new JRadioButton("JRadioButton03");

        //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(radioButton01);
        group.add(radioButton02);
        group.add(radioButton03);

        container.add(radioButton01,BorderLayout.CENTER);
        container.add(radioButton02,BorderLayout.NORTH);
        container.add(radioButton03,BorderLayout.SOUTH);

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

    }

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

    }
}

=========================================================

public class JButtonDemo03 extends JFrame {
    public JButtonDemo03(){
        Container container =this.getContentPane();
        //将一个图片变为图标
        //URL resource = JButtonDemo01.class.getResource("1.jpg");
        //Icon icon = new ImageIcon(resource);

       //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(500,300);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    }

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

    }
}