User.java

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

/**
 * Created by IntelliJ IDEA.
 * User: Sadv1r
 * Date: 8/6/14
 * Time: 7:17
 */
@JsonIgnoreProperties(ignoreUnknown = true)
public class User {
    public int id = 0;
    public String first_name = null;
    public String last_name = null;
    public int sex = 0;
    public String nickname = null;
    public String screen_name = null;
    public String bdate = null;
    public String twitter = null;
    public int verified = -1;
    public String home_town = null;         //maybe int
    public int[] friends = null;


    /*
    In future:

    public int vk = 0;
    public long facebook = 0;
    public String twitter = null;
    public String skype = null;
    public String instagram = null;
    public int city = 0;
    public String schoolName = null;
    public Date from = new Date();
    public Date to = new Date();
    public Date graduationYear = new Date();
    */

    public String equals(User user) {
        /* Удостоверимся, что объекты не одинаковые */
        if(user == this)
            return "Same";

        /* Удостоверимся, что объекты существуют */
        if(user == null || this == null)
            return "NULL Object";

        /* Удостоверимся, что ссылки имеют тот же самый тип */
        if(!(getClass() == user.getClass()))
            return "Different Classes";

        /* Удостоверимся, что проверяем одного пользователя */
        if (!(this.id == user.id)) {
            return "Different user_id";
        } else {
            if (!(this.first_name.equals(user.first_name)))
                return "New first name: " + user.first_name;
            if (!(this.last_name.equals(user.last_name)))
                return "New last name: " + user.last_name;
            if (this.sex != user.sex)
                return "New sex: " + user.sex;
            if (!(this.nickname.equals(user.nickname)))
                return "New nickname/middle name: " + user.nickname;
            if (!(this.screen_name.equals(user.screen_name)))
                return "New screen name: " + user.screen_name;
            if (!(this.bdate.equals(user.bdate)))
                return "New birth date: " + user.bdate;
            if (!(this.twitter.equals(user.twitter)))
                return "New twitter: " + user.twitter;
            if (this.verified != user.verified)
                return "New verified status: " + user.verified;
            if (!(this.friends.equals(user.friends)))
                return "ИЩЕМ ИЗМЕНЕНИЯ В ДРУЗЬЯХ";                                  //FIXME!
            else
                return "Same but not same. ВСЕ ПЛОХА!";
        }
    }

}