personalinformation.java

自己写的一个聊天的小程序 请多多指教

/*
 * Copyright (c) 2003 - 2007, Silvio Meier and Tobias Reinhard
 *
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met:
 *
 *   o Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer.
 *   o Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution.
 *   o The names of its contributors may not be used to endorse 
 *     or promote products derived from this software without 
 *     specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.sf.cscc.examples.simplesystem;

import java.io.Serializable;

/**
 * This class encapsulates data which is entered at the client side. 
 * This data container is then sent over the net by the help of the 
 * client/server component. For sending the data container over the web, 
 * the class has to implement the {@link java.io.Serializable} interface.<br>
 * This class must be available in the client and in the server package!!
 *
 *	@author			Silvio Meier
 *	@copyright      Silvio Meier, Tobias Reinhard, 2003
 *	@history		2003-05-15 SM First Version.
 *                  2003-05-16 SM Comments added.
 *                  2006-11-28 SM Comments revised.
 *	@version		$Date: 2007/07/01 17:04:07 $, $Author: reode_orm $, $Revision: 1.1 $
 *
 */
public class PersonalInformation implements Serializable {
    /**
	 * Serialization id.
	 */
	private static final long serialVersionUID = -5492548635684328277L;

	/**
     * Encapsulates the first name of the person.
     */
    private String firstName;

    /**
     * Encapsulates the last name of the person.
     */
    private String lastName;

    /**
     * Encapsulates the age of the person.
     */
    private int age;

    /**
     *   Initializes the object with a first name, a last name and the age of a person.
     *   @pre true
     *   @post true
     *   @param firstName First name of the person.
     *   @param lastName  Last name of the person.
     *   @param age       Age of the person.
     */
    public PersonalInformation(String firstName, String lastName, int age) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.age = age;
    }

    /**
     *   Returns the last name of the person.
     *   @pre true
     *   @post true
     *   @return Returns the last name of the person.
     */
    public String getLastName() {
        return lastName;
    }

    /**
     *   Returns the first name of the person.
     *   @pre true
     *   @post true
     *   @return Returns the first name of the person.
     */
    public String getFirstName() {
        return firstName;
    }

    /**
     *   Return the age of the person.
     *   @pre true
     *   @post true
     *   @return Returns the age of a person.
     */
    public int getAge() {
        return age;
    }

    /**
     *   Returns a String consisting of the data represented by this object. The format
     *   is: &lt;lastName&gt;&lt;firstName&gt;&lt;age&gt;
     *   @pre true
     *   @post true
     *   @return Reutrns a string consitsting all the data of this object.
     */
    public String toString() {
        return lastName + " " + firstName + ", " + age;
    }
}