hi, can someone correct this code for me. i will be very thnakful.

#include<iostream>
#include<string>
using namespace std;
template <class T>
class ListIterator;
template<class T>
class List
{
    friend class ListIterator<T>; //declaration of <Template>class iterator

public:
    List(int size);
    ~List(){ delete [] listArray; }

    bool isFull() { return mSize == MaxSize; }
    bool isEmpty() { return mSize == 0; }
    int length() { return mSize; }
    void insert(const T value);
    bool remove(const T value);
    void setData(int index, T value);
    T getData(int index);
    int search(T key);
    List(const List & other);//copy constructor
    const List& operator=(const List & rhs);  //assignment operator

private:
    bool removeAt(int index);
    int MaxSize;
    int mSize;
    T *listArray;

};
template<class T>
List<T>::List(int size)
{
    if (size < 1)  throw  "ILLEGAL_SIZE";
    else{ MaxSize = size;
    listArray = new T[MaxSize];
    if (listArray == NULL) throw "OUT_OF_MEMORY";

    mSize = 0;
    }
}

template<class T>
void List<T>::insert(const T value)
{
    if (isFull()) throw "OUT_OF_SPACE";
        listArray[mSize] = value;
        mSize++;
}

template<class T>
bool List<T>::remove(const T value)
{
    int index = search(value);
    if (index == -1) return false;
    else return removeAt(index);
}

template<class T>
bool List<T>::removeAt(int index)
{
    if (index < 0 || index >= mSize)
        throw "ILLEGAL_INDEX";
    else
    {
        listArray[index] = listArray[mSize - 1];
        mSize--;
        return true;
    }

}
template<class T>
T List<T>::getData(int index)
{
    if (index < 0 || index >= mSize) throw "ILLEGAL_INDEX";
    else    return listArray[index];
}

template<class T>
void List<T>::setData(int index, T value)
{
    if (index < 0 || index >= mSize) throw "ILLEGAL_INDEX";
    else     listArray[index]=value;
}

template<class T>
int List<T>::search(T key)
{
    for (int i = 0; i < mSize;i++)
    if (listArray[i] == key) return i;

    return mSize;
}

template<class T>
List<T>::List(const List &other)
{
    other=&List;

}


template <class T>
class ListIterator {
private:
List<T> &list;
int current;
ListIterator & operator =(const ListIterator & rhs);
// disallow assignment
public:

ListIterator(const List<T> &l): list(l), current(0) { }
ListIterator(const ListIterator<T> &li): list(li.list), current(li.current) { } // copy constructor

// overloaded assignment operator

void begin(){current = 0;}

void end() {current = list.mSize;}

bool isStart() {return current == 0;}

bool isDone() {return (current==list.mSize); }

void next() {

if (!isDone()) current++;

else throw "ILLEGAL_REFERNCE";

}


bool find(const T key) {

current = list.search(key);

if (!isDone()) return true; else return false;
}

T getData(){return list.listArray[current];}  // get data of the current element
void setData(const T value); // change value of the current element
};
template<class T>
void ListIterator<T>::setData(const T value){list.setdata(current,value); current++;}



int main()
{
    try{
    List<int> intList(-10);

    ListIterator<int> myIterator(intList); // create iterator and
    //attach list to it
    int temp = 0;
    int x=0;
    for(int i=0;i<10;i++)
    {cout<<"Enter Data "<<i+1<<"#";
      cin>>x;
    myIterator.setData(x);
    }

    myIterator.begin();
    while(!myIterator.isDone()) {         // temp now has sum of all elements

    temp = temp + myIterator.getData();
    myIterator.next();
    }
cout<<endl;


    cout<<"Sum="<<temp<<endl;

    }
    catch (char e[]){ cout << e << endl; }
    catch (...){  }
system("pause");
    return 0;
}

You'll receive better help if you explain how the code isn't working.

Are you having any errors when you try to compile this? Giving out the errors or behavior would surely be beneficial :).

I am getting these errors while compiling.
Line 100 error: 'list' was not declared in this scope
Line 180 error: 'system' was not declared in this scope
Line 114 error: invalid initialization of reference of type 'List<int>&' from expression of type 'const List<int>'
Line 147 error: 'class List<int>' has no member named 'setdata'

other=&List;
This line makes no sense.

system("pause");
system lives in the cstdlib header.

void ListIterator<T>::setData(const T value){list.setdata(current,value); current++;}
setdata does not exist, but setData does.

ListIterator(const List<T> &l): list(l), current(0) { }
Drop the const.

The metod that starts on line 92 is a copy constructure, which means you have to create a copy of the contents of the parameter. In this case you have to copy the contents of the list from other parameter into this. A simple one-line statement is not sufficient.