Explain features of OOP. Write a program to add two objects of a class using friend function. The class consists of hour and minute as its data member, input(), sum() and output() as its member functions.
Object-Oriented programming (OOP) is a programming paradigm based on the concept of objects, which are instances of classes that encapsulate data and behavior. OOP provides a number of features that make it a popular choice for developing large, complex software systems. Here are some of the key features of OOP: Encapsulation: OOP allows you to encapsulate the implementation details of an object and hide them from the outside world. This helps to ensure that the object is used correctly and can be modified without affecting other parts of the program. Abstraction: OOP provides a high level of abstraction by allowing you to create complex data structures and algorithms. Abstraction allows you to simplify the complexity of your program by hiding unnecessary details an focusing on what is important. Inheritance: OOP allows you to create new classes that are based on existing classes. This is known as inheritance, and it allows you to reuse existing code and create more specialized cl...