tes2.java

package clienteditor;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;

public class Client {
	
	private String firstName;
	
	private final PropertyChangeSupport changeSupport = new PropertyChangeSupport(this);
	
	public void addPropertyChangeListener(PropertyChangeListener listener) {
 changeSupport.addPropertyChangeListener(listener);
 }
	
	public String getSurname() {
 return surname;
 }
}