I have a error that i can figure out about spawning game object

[Liam-The-P]

i am a very new beginner and i am trying to figure out this error’s
assets/SpawnObstacle expected insert a semicolon at the end
assets/SpawnObstacle unexpected token gameObject
assets/SpawnObstacle expected insert a semicolon at the end
assets/SpawnObstacle expection EOF found

this is my java script

using UnityEngine;
using System.Collections;

public class SpawnObstacle : MonoBehaviour {

public GameObject obstacle;
float x = 0;

void Update () {
	float y = Random.Range(-6.766665f, -0.1744022f);
    if(x < 1000) {
        Instantiate(obstacle, new Vector3(x * 6.0f, y, 0),Quaternion.identity);
        x++;
    }
    Debug.Log(x);
}

}

[getyour411]

This is not javascript, this is C#.