Classes and Objects in C++
Class
- Class is a user defined data type
- Class has both data members and member functions that work on those data members
- A class is a collection of objects of similar type
- Class allows the data (and functions) to be hidden, if necessary, from external use
- Data hiding is done through access modifiers
- By default, data members are ‘private’ (mode of visibility/access modifier)
- Class provides a blueprint for object creation
- Once a class has been defined, we can create any number of objects belonging to that class
Object
- Objects are basic run-time entities of an object oriented system
- Program objects must be chosen such that they match closely with real world objects
- An object is a instance of a class
- In simple terms, objects are variable of type class
