I want an array of double numbers (1.64, etc.). I want to take them..

Question

I have an array of double numbers (1.64, etc.). I want to take them randomly and use it to instantiate in that position(number). I looked up but what I have found :

var element = myArray[Random.Range(0, myArray.Length)];
// this sort of thing. As it seems that it doesn't get the double .

so look (List<> ) but it also problematic whenever I try adding a double value it gives an absurd error so I decided to use :

double[] barrierleftList = {1.23, 4.56, 7.89};
//14th line

but I have some problem with that too

randomZ = barrierleftList[Random.Range(0, barrierleftList.Length)];
//46th line

// when I run this it gives:

 

Assets\instantiate.cs(46,19): error CS0266: Cannot implicitly convert type 'double' to 'int'. An explicit conversion exists (are you missing a cast?)

 

This is my problem.

 

btw Thanks even for reading :)

 

HERE IS MY FULL CODE! ( why here you might ask because it is easier to follow)

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class instantiate : MonoBehaviour
{
public Transform bars;
private Vector3 nextBarsSpawn;
public Transform barrierleft;
public Transform barrierright;
private Vector3 nextbarrierleftSpawn;
private Vector3 nextbarrierrightSpawn;
private int randomZ;
double[] barrierleftList = {1.23, 4.56, 7.89};
double[] barrierrightList = {1.23, 4.56, 7.89};
/* List<double> nextbarrierleftList = new List<double>();
items.Add(1.23);
items.Add(4.56);
items.Add(7.89);
// This will give you a double[3] array with the items of the list.
double[] barrierleftList = barrierleftList.ToArray();
*/
void Start()
{
nextBarsSpawn.x=24;
nextBarsSpawn.y=4;
nextbarrierleftSpawn.x=18;
nextbarrierleftSpawn.y=4;
nextbarrierrightSpawn.x=18;
nextbarrierrightSpawn.y=4;
StartCoroutine(spawnBars());
StartCoroutine(spawnbarrierleft());
//StartCoroutine(spawnbarrier());
}

// Update is called once per frame
void Update()
{
}
IEnumerator spawnbarrierleft()
{
// left barrier
yield return new WaitForSeconds(1);
//randomZ=Random.Range(-1,2);
randomZ = barrierleftList[Random.Range(0, barrierleftList.Length)];
nextbarrierleftSpawn.z=randomZ;
Instantiate(barrierleft, nextbarrierleftSpawn, barrierleft.rotation);
nextbarrierleftSpawn.x += 8;
StartCoroutine(spawnbarrierleft());
}
IEnumerator spawnBars()
{
yield return new WaitForSeconds(1);
Instantiate(bars, nextBarsSpawn, bars.rotation);
nextBarsSpawn.x += 8;
StartCoroutine(spawnBars());
}
}