Explain the concept of Class and Object in OOP?

A class is a group of objects that has common properties. Object is an instance of a class.

Class is a collection of method,properties,variables and object is a physical representation of a class or we can say that object is a medium for accessing the element of a class

class is a collection of variables and methods, instance of objects with implementation of methods object is the instance of objects using class name can create the object