android - Java - array of object - setting index of one sets entire array -

i lost @ point. simple but..... shrunk down code. don't believe removed relevant. appears works fine except 1 big flaw. when call setwhosonline, no matter index is, seems set entire array.

my watch environment window before setwhosonline call.

    users[0].name = null     users[1].name = null     users[2].name = null     users[3].name = null     etc.... 

i call

    setwhosonline("john",1); 

im expecting see...

    users[0].name = null     users[1].name = john     users[2].name = null     users[3].name = null 

unfortunately - i'm getting is...

    users[0].name = john     users[1].name = john     users[2].name = john     users[3].name = john 

my hair turning grey! hope has answer out there me....

class 1

public class login extends activity { public static who[] users = new who[100]; }  private static void setwhosonline(string user, int index) {       users[index].setname(user); }   } 

class 2

public class   { private static boolean active; private static boolean online; private static string msg=""; private static int msgcnt=0; private static string name; private static string ip; private static date stamp=new date();   public void init(int index) {       this.active = false;       this.online = false;       this.name = "";       this.ip = "";       this.stamp = new date(); }  //user      public final void setname(string value) {     this.name = value; } 

all fields in class static, hence instances of class share same data (i.e. have same name, same ip, etc.). using static in context not make sense.