Process Oriented Programming vs Object Oriented Programming

Process Oriented Programming

Like OOP, POP is a coding style.

It's based on the functions. It's good at dealing with a process.

Advantages of OOP

• In application, the processes are crossed, one depends on another. POP is not good at it, while OOP solves this problems.

• OOP has Encapsulation, Abstraction, Inheritance, Polymorphism, which help us maintain the application.

Bad design in OOP

Some bad design will turn OOP to POP, let the codes hard to maintain. We should avoid following design.

Too many getters and setters

It exposes the private attributes, loses the encapsulation of OOP.

Too many static attributes and methods

We like setting all the constant value as static attributes, and put them in a class. Then, we can use them without initializing an instance.

This design lose the encapsulation of OOP, turns OOP into POP. The disadvantages are:

• hard to maintain

• slow to compile

To solve it, there are two ways.

• split a single "static" class, and use meaningful names for the new classes.

• DO NOT use "static" class. Declare the static value inside the classes.