What is a class ?

A class is also called a data structure. It consists of data members like constants, fields and events and function members like methods, properties, indexers, operators, constructors, static constructors and destructors. A class within a class is called a nested class. Thus we can place 11 different types of entities in a class. Function members are the only members of a class that contain executable code. A class creation creates a new declaration space.

All classes derive from object . Object is the mother of all classes.