Java JFormattedTextField handle action event

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JTextField;

public class Main {
   public static void main(final String args[]) {
      JFrame frame = new JFrame("Formatted Example");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

      JFormattedTextField input = new JFormattedTextField(1234.50);
      input.setValue(123321);/*from  www .ja va  2 s  .  c o  m*/

      ActionListener actionListener = new ActionListener() {
         public void actionPerformed(ActionEvent actionEvent) {
            JFormattedTextField source = (JFormattedTextField) actionEvent.getSource();
            Object value = source.getValue();
            System.out.println("Class: " + value.getClass());
            System.out.println("Value: " + value);
         }
      };
      input.addActionListener(actionListener);

      frame.add(input, BorderLayout.NORTH);

      frame.add(new JTextField(), BorderLayout.SOUTH);
      frame.setSize(250, 100);
      frame.setVisible(true);
   }
}