What is a class?

A class describes all the attributes of objects, as well as the methods that execute the behaviour of member objects. It is a comprehensive data type, which shows a blue print of objects. It is a template of object.

A class can be explained as the primary building block of OOP. It also serves as a template that explains the properties, state, and behaviors common to a particular group of objects.

A class have data and behaviour of an entity. For instance, the aircraft class can contain data, like model number, category, and color and behaviour, like duration of flight, speed, and number of passengers. A class inherits the data members and behaviors of other classes by extending from them.