What is the relation between Classes and Objects?

 They look very much same but are not same.

1. A class is a definition, while an object is an instance of the class.
2. A class is a blueprint while objects are actual objects existing in the real world.

Suppose we have a class Person which has attributes and methods like name, age, height, weight, color etc.

Class Person is just a prototype, now we can create real-time objects of class Person.

#Example: Ajay is real time object of class Person, which have name=Ajay, age=23, height=170cm, weight=60kg and color=black etc.

Class

1. A way to bind data and associated functions together.
2. Class have many objects.
3. Class is a template for creating objects.
4. It is logical existence.
5. Memory space is not allocated, when it is created.
6. Definition (Declaration) is created once.
7. Class is declared using "class" keyword.

Object

1. Basic runtime entity in object oriented environment.
2. Object belongs to only class.
3. Object are a implementation of class.
4. It is physical existence.
5. Memory space is allocated when it is created.
6. It is created many times as you required.
7. Object is the instance or variable of class.