How to access dynamic array inside a class constructor?

Question

How do I access the dynamic array and set values to it? For example array[size] = {8, 4, 3, 2, ...}

class Array
{
public:
    Array(int sze)// default constructor
    {
        size = sze;
        ptr = new int [size];
    }

private:
    int size; // number of elements in the Array
    int *ptr = 0; // address of dynamically allocated memory

};

int main()
{
    Array arry(10);
    cout << arry.getSize();

    //.....;
}

Answer 1

Your array that you have created is private , and to access it you must provide an accessor method:

public:
    ...
    int* getPtr() { return ptr; }
...
int *ptr = arry.getPtr();
ptr[0] = 1;
cout << ptr[0];

Alternatively you can hide the pointer itself and provide get(position) and set(position) methods to ensure that other code doesn't mess with your pointer.