Dynamic Memory in C++
Many times, you are not aware in advance how much memory you will need to store particular information in a defined variable and the size of required memory can be determined at run time.
Class and Object in C++
A class provides the blueprints for objects, so basically an object is created from a class. A class is used to specify the form of an object and it combines data representation and methods for manipulating that data into one neat package .
Class Constructor and Destructor in C++
A class constructor is a special member function of a class that is executed whenever we create new objects of that class.A destructor is a special member function of a class that is executed whenever an object of it\'s class goes out of scope or whenever the delete expression is applied to a pointer to the object of that class.