What is OOPs?

In this semester I am studying OOPs with C++.  I have already studied OOPs with C++ in my 12th standard. I wish to share whatever I understood about "What is OOPs?"

First of all, many thinks OOPs means C++. Not at all. OOPs is a concept which can also be implemented in C++. Object Oriented Programming is abbreviated as OOP. Objects are the successors of structures.

Why go for classes from structure?

Interesting concept that I understood - C++ & C

In functions, we would've heard about Call by reference concept which uses pointers. A simple program to explain "Call by Reference" would be as follows :

WWW

WWW which is expanded as World Wide Web is generally a part of any website's URL. You can see any website's URL starting with www. It is just a sub-domain but which all DNS record should contain for sure. Let's take three of my blogs for explanation.

1. http://www.krishnainfotron.com/
2. http://howtoblog.krishnainfotron.com/
3. http://www.tncif.krishnainfotron.com/

Redirect Subdomains

While explaining about URL, I told that http://forum.krishnainfotron.com/ and http://search.krishnainfotron.com/ as Redirect Sub-domains.

What is a redirect?
When a URL redirects to another URL, its called a redirect.

Wild Card Redirect

Wow! Blogger Follows Wild Card Redirect.

Lets take How to blog?

Its blogspot domain URL is http://www.krishnainfotron.blogspot.com/

Its Custom domain URL is http://howtoblog.krishnainfotron.com/

I was previously using this blogspot domain on a free domain : http://www.krishnainfotron.x10.mx/

I switched from http://www.krishnainfotron.x10.mx/ to http://howtoblog.krishnainfotron.com/

When I shifted from http://www.krishnainfotron.blogspot.com/ to http://www.krishnainfotron.x10.mx/ there was no fear that traffic will get lessened. 

When URL changes, how traffic won't get lessened?

Lets take two links from How to blog?,