Memory Allocation for Objects

Most times programmers are not aware beforehand of the amount of memory that they will need to store particular information in a defined variable, and though the size of required memory can be determined during run time. in other words programmers can allocate memory at run time using a special operator in C++ within the heap for a variable of a given type, and this operator is called new operator. 

However, in cases where dynamically allocated memory is not needed, you can use the delete operator which de-allocates memory previously allocated by a new operator. 

Memory Allocation for Objects: 

In C++ programs, objects are likened to simple data types. Check out the example below where an array of objects is used: 

Example:

#include <iostream>

class Box
{
   public:
      Box() { 
         cout << "Constructor is called!" <<endl; 
      }
      ~Box() { 
         cout << "Destructor is called!" <<endl; 
      }
};

void main( )
{
   Box* myBoxArray = new Box[4];

   delete [] myBoxArray; // Delete array
   getch();
}