De-activating and Re-activating objects in an Array

Questions & Answers
1

I have an array of objects.
I go through an array and I want to activate my objects in a cycle: 1, 2, 3, 1, 2, 3… and so on.
The problem that I’m facing is that de-activated objects also disappear from my array.
And this is what happens:
http://giphy.com/gifs/l0O9z6PGHDgg3GGZO
The 2 cubes just disappeared and the script stopped.
Instead I want the 3rd cube to appear and 1 and 2 to disappear, then the 1st to appear and the 2 and 3 to disappear and so on.
Here’s the code.
using UnityEngine;
using System.Collections;

public class Тестирую : MonoBehaviour
{

 public int num;
[SerializeField] public GameObject[] objs;
	

void Start()
{
	objs = GameObject.FindGameObjectsWithTag("Player");
	num = 0;
	
	
}

void Update()
{
	
			
	if (Input.GetButtonUp("RightBumper"))
	{
		NextOne ();
	}
	
			
}


void NextOne()
	
{
	if (num >= objs.Length - 1)
		num = 0;
	else
		num++;
	
	foreach (GameObject obj in objs)
	{
		obj.SetActive(false);
	}
	
	objs[num].SetActive(true);


}

}

2

I would do it like this:

     public int num;
     [SerializeField] public GameObject[] objs;
     
     void Start()
     {
         objs = GameObject.FindGameObjectsWithTag("Player");
         num = 0;    
     }
     
     void Update()
     {
         if (Input.GetButtonUp("RightBumper"))
         {
             NextOne ();
         }           
     }
     
     void NextOne()
     {
         num++;
        if (num>=objs.Length)
            num=0;
         
         for (int i=0; i< objs.Length; i++)
            objs*.SetActive(i == num);*

}

3

try obj.activeInHierarchy = false; instead