id.java

JAVA网络编程技术内幕一书的源代码

/*
 * Java Network Programming, Second Edition
 * Merlin Hughes, Michael Shoffner, Derek Hamner
 * Manning Publications Company; ISBN 188477749X
 *
 * http://nitric.com/jnp/
 *
 * Copyright (c) 1997-1999 Merlin Hughes, Michael Shoffner, Derek Hamner;
 * all rights reserved; see license.txt for details.
 */

import java.io.*;

public class ID implements Serializable {
  protected int id;
  
  public ID (int id) {
    this.id = id;
  }
  
  public boolean equals (Object other) {
    return (other != null) && (other instanceof ID) && (((ID) other).id == id);
  }
  
  public int hashCode () {
    return id;
  }
}