Why object-oriented programming languages are named so.

Friends,

This is a new post to my newly made blog of ProgInfonics.In this post, I am trying to explore the reason of the very name of "object-oriented programming",a revolutionary effort in the field of programming.

Many of you may know that any computer program contains basically two things, data and code.You can take any language which operates on data.

So, language of the pragram can be classified into two categories on this basis:one type of language  is centralised to the code of the program, the other type of language which is centralised to the data or information provided to the program.

So, the first type of language is called process-oriented language while the other type is called data-oriented language or object-oriented language.

Difference between declaration and definition in the C language.

Hii friends,

In my this post I want to share wid you something on one of the most famous middle-level programming languages, C language.In C language, we generally come across the use of declaration and definition whether of a function, a variable or may it be structures.In case of functions and other user-defined c-tokens, this difference is clear-cut.But when it comes to the variable, both looks the same.So, the meaning of definition and declaration for variables is as follows:

Declaration: It specifies the type and name of the variable.

Definition: It specifies the type and name as well as the memory location on computer memory where the variable has been allocated storage.

Example:

                    int name;

It is a declaration of variable name.

                   extern int name;

It is a definition of variable name (excluding the case of multiple-file program).