Fanook
public java v1 · immutablepackage test;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;public class Test { public static void main (String args[]) { Test t = new Test(); JButton b = new JButton (); b.addActionListener (t.new ButtonHandler()); } private void a () {} class ButtonHandler implements ActionListener{ public void actionPerformed (ActionEvent arg0) { a(); } }}