Programming Methodologies

Background

There are various programming methodologies for solving real-time problems programmatically. This article just provides an overview of some programming methodologies and we will see OOP concepts in greater details.

Let us now see the programming methodologies.

What a Programming Methodology is

A programming methodology is nothing but a type of technique to solve some given requirements using programming languages.

For example, I want to add the number 10 to itself.

Then the example above is an example of a problem because it is very difficult to calculate these types of calculations manually again and again so to solve the preceding given requirement programmatically with a permanent solution, each programming language has its own methodology and style of coding to solve the given problem.

The following are some of the common types of programming methodologies.
 

Type of Programming methodology.jpg
 

Unstructured Programming

A programming language in which the entire logic of the program is written as a single continuous (nonstop or unbroken) block is called unstructured programming.

The following are the key points of unstructured programming languages:

  • It is a type of problem-solving technique, in which we solve the problem in terms of lots of code. If the requirements increase then the code is also increased.
  • There is no re-usability of existing code.
  • Finding an error in a program is very difficult.
     
  • Syntax and structure is very difficult to understand and remember.
     
  • Modification is very difficult.
  • Non-structured languages allow only basic data types, such as numbers, strings and arrays.
  • Statements are usually one in each line.

For example:

JOSS, FOCAL, MUMPS, TELCOMP, COBOL, FORTRAN and so on.

2
. Structured Programming Language

A programming language in which the entire logic of the program is written by dividing it into smaller units or modules is called a Structured Programming Language.


The following are the key points of Structured Programming languages:

  • Finding an error in a program is easily.
  • Syntax and structure is very simple to understand and remember.
  • Modification is easy.
  • There is no re-usability of existing code as much as expected.

For example,

        C and so on.

3.  Object Oriented Programming

Object Oriented Programming (OOP) is the programming methodology in which each entity is an object.

 This provides the following key advantages.

  • Re-usability of existing code.
  • Extensibility of existing code.
  • Security.
  • Flexibility.
  • Maintainability.

The following are the key points of OOP languages:

  •  Classes
  •   Objects
  •  Methods
  •  abstraction
  •  Encapsulation
  •  Inheritance
  • Polymorphism

And so on.

For example:

  C++, Java, C#, F#, VB.net .and so on.

Now in my next article we will learn details about the C#'s OOP features.

Summary

Now we have learned some overview of the programming methodologies and wait for my next details of OOP concept series. I hope this article is useful for all students and beginners. If you have any suggestion related to this article then please contact me.