java-如何在模型中使用JRadioButton组

有没有什么方法可以将一组JRadioButton与数据模型相关联,以便更容易判断选择了哪个按钮(如果有)？

在理想的世界中,我想将一组N个单选按钮与一个枚举类相关联,该枚举类具有NONE值和与每个单选按钮相关联的一个值.

解决方法:

我解决了自己的问题,这并不难,所以分享并享受：

import java.util.EnumMap;
import java.util.Map;
import javax.swing.JRadioButton;

public class RadioButtonGroupEnumAdapter<E extends Enum<E>> {
    final private Map<E, JRadioButton> buttonMap;

    public RadioButtonGroupEnumAdapter(Class<E> enumClass)
    {
        this.buttonMap = new EnumMap<E, JRadioButton>(enumClass);
    }
    public void importMap(Map<E, JRadioButton> map)
    {
        for (E e : map.keySet())
        {
            this.buttonMap.put(e, map.get(e));
        }
    }
    public void associate(E e, JRadioButton btn)
    {
        this.buttonMap.put(e, btn);
    }
    public E getValue()
    {
        for (E e : this.buttonMap.keySet())
        {
            JRadioButton btn = this.buttonMap.get(e);
            if (btn.isSelected())
            {
                return e;
            }
        }
        return null;
    }
    public void setValue(E e)
    {
        JRadioButton btn = (e == null) ? null : this.buttonMap.get(e);
        if (btn == null)
        {
            // the following doesn't seem efficient...
                    // but since when do we have more than say 10 radiobuttons?
            for (JRadioButton b : this.buttonMap.values())
            {
                b.setSelected(false);
            }

        }
        else
        {
            btn.setSelected(true);
        }
    }
}

标签：jradiobutton,swing,java,radio-button
来源： https://codeday.me/bug/20191210/2100996.html