Differentiate between POP and OOPs.
ans:
Here.we are going to understand about structured programming /also called procedure oriented programming and object oriented programming with the help of following description.
Concept of POP (procedural oriented programming):- Conventional programming using high level languages such as COBOL,FORTRAN and C, is commonly known as procedure oriented programming(POP).
Procedure oriented programming basically consists of writing a list of instructions(or actions) for the computer to follow, and organizing these instructions into groups known as functions.While we concentrate on the development , very little attention is given to the data that are being used by various functions.
Diagrammatically we can show POP as
Some characteristics (features) of Procedure Oriented Programming are :-
1) Emphasis is on doing things(algorithms).
2) Large programs are divided into smaller programs known as functions.
3) Most of the functions share global data.
4) Data more openly around the system from function to function.
5) Functions transform data from one form to another.
6) Employs top-down approach in program design.
OOP (Object Oriented Programming)concepts:-
The major motivating factor in the invention of object oriented is to remove some of the flaws encountered in the procedural oriented approach. Object oriented programming uses concept of “Object” and treats data as a critical element in the program development and does not allow it to flow freely around the system. It ties data more closely to the functions that operate on it, and protects it from accidental modifications from outside functions.
Some characteristics (features) of Object Oriented Programming are :-
1) Emphasis is on data rather than procedures or algorithms.
2) Programs are divided into what are known as objects.
3) Data structures are designed such that characterize the objects.
4) Functions that operate on the data are tied together in the data structure.
5) Data is hidden and cannot be accessed by external functions.
6) Objects may communicate with each other through functions.
7) New data and functions can be easily added whenever necessary.
8) Follows bottom-up approach in program design.
