Discuss automatic conversion and casting with example? Differentiate between POP and OOP.

Discuss automatic conversion and casting with example?

Automatic conversion and casting are two ways to convert values from one type to another in C++.

1. Automatic conversion: Automatic conversion, also known as implicit type conversion, occurs automatically when a value of one type is used in an expression that requires a different type. For example, when a 'float' is used in an expression that requires an 'int', the 'float' will automatically converted to an 'int'.

            float a= 3.14;

            int b = a; // automatic conversion from float to int

       2. Casting: Casting, also known as explicit type conversion, allows you to explicitly convert a value            from one type to another using a cast operator. There are several cast operators in C++, including            'static_cast', 'dynamic_cast', 'reinterpret_cast' and 'const_cast'.

            float a = 3.14;

            int b = (int) a; //Explicit conversion using casting operator

It is important to be aware of the potential consequences of automatic conversion and casting, as they can result in loss of precision or information when converting from a larger type to a smaller type. To ensure that the conversion is performed correctly, it is best to use casting when an explicit conversion is required, and to be mindful of the types involved in automatic conversions.

Differentiate between POP and OOP

POP (Procedural Oriented Programming) and OOP (Object Oriented Programming) are two popular programming paradigms used in computer programming. Both paradigms have different approaches to solving problems and organizing code.

1. Approach: POP is based on the idea of procedures and functions , where a program is broken down into a series of procedures or functions that perform specific tasks. In contrast, OOP is based on objects and the relationships between objects, where objects are instances of classes that define the behavior and state of the objects.
2. Problem solving: POP solves problem by breaking them down into a series of procedural steps, while OOP solves problems by modeling the real-world objects and their relationships between them.
3. Reusability: POP achieves reusability through functions and procedures, while OOP achieves reusability through classes and objects. This makes OOP more flexible and easier to maintain, as classes and objects can be easily reused and modified.
4. Abstraction: POP provides limited abstraction, meaning that the implementation details of procedures and functions are visible to the outside world. In contrast, OOP provides high abstraction, as objects have their own state and behavior and the implementation details are hidden from the outside world. This makes OOP more secure and flexible, as changes to the implementation of an object do not affect the outside world.