AbstractButton: addItemListener(ItemListener l)
/* */ import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class MainClass { public static void main(String[] args) { JButton jb = new JButton("Press Me"); jb.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent ev) { System.out.println("ItemEvent!"); } }); jb.addChangeListener(new ChangeListener() { public void stateChanged(ChangeEvent ev) { System.out.println("ChangeEvent!"); } }); JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.getContentPane().add(jb); f.pack(); f.setVisible(true); } }