User Class

import java.io.Serializable;

public class User implements Serializable {

    private String userName;
    private boolean isOnline = false;

    public User(){

        isOnline = true;

    }

    public User(boolean status){

        isOnline = status;

    }

    public boolean isOnline(){

        if(isOnline){

            return true;

        }else{

            return false;

        }

    }

    public void setOnlineStatus(boolean status){

        isOnline = status;

    }

    public void setName(String name){

        userName = name;

    }

    public String getName(){

        return userName;

    }

}