c++ array class problems

Alright, so without going into detail on why I'm writing this class, here it is.

template<class aType>
  class nArray
  {
  public:
   aType& operator[](int i)
   {
    return Array[i];
   }
   nArray()
   {
    aType * Array = new aType[0];
    _Size = 0;
    _MaxSize = 0;
    _Count = 0;
   }
   nArray(int Count)
   {
    aType * Array = new aType[Count*2]();
    _Size = Count;
    _MaxSize = Count * 2; 
    _Count = 0;
   }

   int Resize(int newSize)
   {
    aType *temp = new aType[newSize*2];
    for(int i=0;i<_Count;i++)
    {
     temp[i] = Array[i];
    }
    delete[] Array;
    aType * Array = new aType[newSize*2];
    for(int i=0;i<_Count;i++)
    {
     Array[i] = temp[i];
    }
    delete [] temp;
    _Size = newSize;
    _MaxSize = newSize*2;
    return 0;
   }
   int Push_Back(aType Item)
   {
    if(_Count+1 >= _Size)
    {
     Resize(_MaxSize);
    }
    Array[_Count] = Item;
    _Count++;
    return _Count - 1;
   }
   aType GetAt(int Index, int &ret)
   {
    if(Index > _Size-1)
     ret = 1;
     return aType();
    ret = 0;
    return Array[Index];
   }
  private:
   int _Size;
   int _Count;
   int _MaxSize;
   aType * Array;
  };

It is supposed to be a std::Vector type object, without all the bells and whistles. Problem is, it doesn't seem to work.

I basically start by going

nArray<string> ca = nArray<string>(5);
ca.Push_Back("asdf");
ca.Push_Back("asdf2");
int intret = 0;
cout << ca.GetAt(1,intret);

I get an Access Violation Reading Location error and it hits on the line

Array[_Count] = Item 

in the Push_back function.

The problem seems to be that it's not treating the Array object as an array in memory.

I've spent time going through the code step by step, and I don't know what else to say, it's not operating right. I don't know how to word it right. I'm just hoping someone will read my code and point out a stupid mistake I've made, because I'm sure that's all it amounts to. Update So now I changed 3 initializations of Array in nArray(), nArray(int Count), and Resize(int newSize)

    template<class aType>
    class nArray
    {
    public:
        aType& operator[](int i)
        {
            return Array[i];
        }
        nArray()
        {
            Array = new aType[0];
            _Size = 0;
            _MaxSize = 0;
            _Count = 0;
        }
        nArray(int Count)
        {
            Array = new aType[Count*2]();
            _Size = Count;
            _MaxSize = Count * 2; 
            _Count = 0;
        }

        int Resize(int newSize)
        {
            aType *temp = new aType[newSize*2];
            for(int i=0;i<_Count;i++)
            {
                temp[i] = Array[i];
            }
            delete[] Array;
            Array = new aType[newSize*2];
            for(int i=0;i<_Count;i++)
            {
                Array[i] = temp[i];
            }
            delete [] temp;
            _Size = newSize;
            _MaxSize = newSize*2;
            return 0;
        }
        int Push_Back(aType Item)
        {
            if(_Count+1 >= _Size)
            {
                Resize(_MaxSize);
            }
            Array[_Count] = Item;
            _Count++;
            return _Count - 1;
        }
        aType GetAt(int Index, int &ret)
        {
            if(Index > _Size-1)
                ret = 1;
                return aType();
            ret = 0;
            return Array[Index];
        }
    private:
        int _Size;
        int _Count;
        int _MaxSize;
        aType * Array;
    };

This is how my code was before. Anyway, the original problem was the fact that when I try to access a specific element in the array, it just accesses the first element, and it doesn't seem to add elements eather. It doesn't seem to be treating Array as an array.