Java - JRadioButton 被选中

Question

我有这样的简单检查:

boolean isPressed;


 if ((jRadioButton1.isSelected() == false) || (jRadioButton2.isSelected() == false) || (jRadioButton3.isSelected() == false)) {
        isPressed = false;
    } else {
        isPressed = true;
    }
    System.out.println(isPressed);

为什么我总是得到 false，即使我在面板中标记了 RadioButton？

Answer 1

您的逻辑意味着，如果没有按下任一单选按钮，则 isPressed 为 false。

尝试切换逻辑

if ((jRadioButton1.isSelected() == true) || (jRadioButton2.isSelected() == true) || (jRadioButton3.isSelected() == true)) {
    isPressed = true;
} else {
    isPressed = false;
}
System.out.println(isPressed);

编辑:可以简化为

isPressed = (jRadioButton1.isSelected() || jRadioButton2.isSelected() || jRadioButton3.isSelected())