Distinction Between a class and an object

A class creates a new data type that can be used to create objects . All of us know this  but a class creates a logical framework that defines the relationship between its members . When we declare an object of a class, we are creating an instance of that class. Thus , a class is a logical construct . An object has physical reality. Because of it, an object occupies space in memory.
It is important to keep this distinction clearly in mind.