Reread the code in Display. Then, write a class TwoD that implements the two-dimensional dynamic array of doubles using ideas from this display in its constructors. You should have a private member of type pointer to double to point to the dynamic array, and two int (or unsigned int) values that are MaxRows and MaxCols.
You should supply a default constructor for which you are to choose a default maximum row and column sizes and a parameterized constructor that allows the programmer to set maximum row and column sizes.
Further, you should provide a void member function that allows setting a particular row and column entry and a member function that returns a particular row and column entry as a value of type double.
Remark: It is difficult or impossible (depending on the details) to overload [ ] so it works as you would like for two-dimensional arrays. So simply use accessor and mutator functions using ordinary function notation.
Overload the + operator as a friend function to add two two-dimensional arrays. This function should return the TwoD object whose ith row, jth column element is the sum of the ith row, jth column element of the left-hand operand TwoD object and the ith row, jth column element of the right-hand operand TwoD object.
Provide a copy constructor, an overloaded operator =, and a destructor.
Declare class member functions that do not change the data as const members.
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