在Java Swing中为Radio单选按钮分配属性

Question

我试图将JRadioButton链接到一个接口和一个实现该接口的方法。我有两种模式，即攻击和防御模式，我希望用户能够点击攻击切换按钮并启用它，当它未被点击时，它会激活防御模式

来自班级的代码

public class AttackMode implements GameBehaviour {

    public boolean behaviourMode(int numOfShips) {
        if(numOfShips < 3){
            return true;
        }
        return false;
    }

}

Code From Java Swing GUI

private JRadioButton getRdbtnDefensiveMode() {
        if (rdbtnDefensiveMode == null) {
            rdbtnDefensiveMode = new JRadioButton("Defensive Mode");
            rdbtnDefensiveMode.setEnabled();
            rdbtnDefensiveMode.addItemListener(new ItemListener() {

                public void itemStateChanged(ItemEvent arg0) {
                    if (arg0.getStateChange() == ItemEvent.SELECTED) {
                         theRules.theMasterShip.setBadAssBehaviour(new DefenceMode());
                         rdbtnAttackMode.setSelected(false);
                    }else if (arg0.getStateChange() == ItemEvent.DESELECTED) {

                         theRules.theMasterShip.setBadAssBehaviour(new AttackMode());
                         rdbtnAttackMode.setSelected(true);
                    }
                    return;
                }
            });         
            rdbtnDefensiveMode.setFont(new Font("Trebuchet MS", Font.BOLD | Font.ITALIC, 11));
            rdbtnDefensiveMode.setBounds(658, 355, 109, 23);
        }
        return rdbtnDefensiveMode;
    }




private JRadioButton getRdbtnAttackMode() {
        if (rdbtnAttackMode == null) {
            rdbtnAttackMode = new JRadioButton("Attack Mode");
            rdbtnAttackMode.addItemListener(new ItemListener() {
                public void itemStateChanged(ItemEvent arg0) {
                    if (arg0.getStateChange() == ItemEvent.SELECTED) {
                         theRules.theMasterShip.setBadAssBehaviour(new AttackMode());
                         rdbtnDefensiveMode.setSelected(false);
                    }else if (arg0.getStateChange() == ItemEvent.DESELECTED) {

                         theRules.theMasterShip.setBadAssBehaviour(new DefenceMode());
                        rdbtnDefensiveMode.setSelected(true);
                    }
                }
            });
            rdbtnAttackMode.setFont(new Font("Trebuchet MS", Font.BOLD | Font.ITALIC, 11));
            rdbtnAttackMode.setBounds(658, 265, 109, 23);
        }
        return rdbtnAttackMode;
    }

我期待如果点击攻击按钮，它应该实施攻击方法，如果取消选中它们，它应该激活防御模式按钮。因此必须始终启用其中一个按钮

Answer 1

将您的按钮添加到button group

像这样：

ButtonGroup bgroup = new ButtonGroup();
bgroup.add(getRdbtnAttackMode());
bgroup.add(getRdbtnDefensiveMode());

为每个按钮创建一个ActionListener，你会很好