Java JCheckBox Events With ItemListener

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import java.awt.Color;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.AbstractButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;

public class JavaJCheckBoxItemListener {

	public static void main(String args[]) {
		JFrame frame = new JFrame("Iconizing CheckBox");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		JCheckBox aCheckBox4 = new JCheckBox("Stuffed Crust");

		ItemListener itemListener = new ItemListener() {
			public void itemStateChanged(ItemEvent itemEvent) {
				AbstractButton abstractButton = (AbstractButton) itemEvent.getSource();
				Color foreground = abstractButton.getForeground();
				Color background = abstractButton.getBackground();
				int state = itemEvent.getStateChange();
				if (state == ItemEvent.SELECTED) {
					abstractButton.setForeground(background);
					abstractButton.setBackground(foreground);
				}
			}
		};
		aCheckBox4.addItemListener(itemListener);
		frame.add(aCheckBox4);
		frame.setSize(300, 200);
		frame.setVisible(true);
	}
}

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