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| 14. 11. 7. Check if a JCheckBox is selected in its item change listener |
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import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
public class Main extends JFrame {
JCheckBox check = new JCheckBox("Checkbox", false);
public Main() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
check.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
System.out.println("Checked? " + check.isSelected());
}
});
getContentPane().add(check);
pack();
setVisible(true);
}
public static void main(String arg[]) {
new Main();
}
}
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