Accesing variable from another class for instantiated gameobjects

using UnityEngine; using System.Collections;

public class Script_1 : MonoBehaviour {

 public GameObject one;

 private GameObject[] ones;

 private float timer;
 int count;

 public string names;

 // Use this for initialization
 void Start () {
     names = "NEED ANSWER";
 }
 
 // Update is called once per frame
 void Update () {
     timer += Time.deltaTime;
     if (timer > 4) {
         timer = 0;
         ones[count] = Instantiate(one)as GameObject;
         count++;
     }
 }

}

using UnityEngine; using System.Collections;

public class script_2 : MonoBehaviour {

 public GameObject script1;

 private Script_1 scriptControl;

 // Use this for initialization
 void Start () {
     scriptControl = script1.GetComponent<Script_1> ();
 }
 
 // Update is called once per frame
 void Update () {
     print (scriptControl.names);
 }

}

when the gameobject creates it showing error message object reference is not set to an instance of a object so please kindly help me out in this . how to access the variable string from script_1 to all the instantiated prefabs..