How to check that a JCheckBox is checked?

Question

How can I check if a JCheckBox is checked?

Answer 1

Use the isSelected method.

You can also use an ItemListener so you'll be notified when it's checked or unchecked.

Answer 2

By using itemStateChanged(ItemListener) you can track selecting and deselecting checkbox (and do whatever you want based on it):

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 docu should help too. By using isSelected() method you can just test if actual is checkbox selected:

if(myCheckBox.isSelected()){_do_something_if_selected_}