Java 如何检查 JCheckBox 是否被选中？
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How to check that a JCheckBox is checked?
提问by oneat
How can I check if a JCheckBoxis checked?
如何检查 aJCheckBox是否已选中？
采纳答案by Matthew Flaschen
Use the isSelectedmethod.
使用isSelected方法。
You can also use an ItemListenerso you'll be notified when it's checked or unchecked.
您还可以使用ItemListener，以便在选中或取消选中它时收到通知。
回答by 1ac0
By using itemStateChanged(ItemListener)you can track selecting and deselecting checkbox (and do whatever you want based on it):
通过使用itemStateChanged(ItemListener)您可以跟踪选择和取消选择复选框（并根据它做任何您想做的事情）：
myCheckBox.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
if(e.getStateChange() == ItemEvent.SELECTED) {//checkbox has been selected
//do something...
} else {//checkbox has been deselected
//do something...
};
}
});
Java Swing itemStateChanged docushould help too. By using isSelected()method you can just test if actual is checkbox selected:
Java Swing itemStateChanged 文档也应该有所帮助。通过使用isSelected()方法，您可以测试是否选中了实际复选框：
if(myCheckBox.isSelected()){_do_something_if_selected_}
