Learn basics of c language for interview  MCQ Questions and Answers on Basics to attend job placement exams, interview questions, college viva and Lab Tests

Letus learn C Programming Basics in this multipart tutorial which are useful for students in the last minute before exam. C Programming Language was invented by Dennis Ritchie in Bell Laboratories. Now Nokia owns Bell Laboratories and experiments are still going on.

C Programming Basics Tutorial Part 1

We shall learn about basic structure of a C Program and predefined Keywords in this C Programming Syntax Basics Tutorial Part 1. You can set up a Turbo C Compiler on your Windows Machine easily.

Structure of a C Program

Every C program contains a function or method called main(). All functions end with Round Brackets or Paranthesis ( ). Inside Paratheses, arguments can be received or passed. Code of a Function is surrounded by Curly Brackets or Braces { }.

#include <stdio.h>
void main()
{
  /*This is a multi-line comment.
     It is not compiled or checked for Syntax*/
  printf("Hello C..");
}

Output

Hello C..

Observations

1. VOID is a return type. VOID means nothing is being returned.
2. main() { } is a compulsory function in any C Program.
3. void and main should be typed in lowercase completely.
4. / symbol is called Forward Slash or simply Slash.
5. * symbol is called STAR.
6. /* */ is a multiline comment. Comments are useful for analysing code logic flow in very big projects. Comments make others easily understand your program or project.
7. printf() is a function which is passing one argument “Helllo C”.
8. “Hello C” is a string literal here.
9. Code statements or lines end with Semicolon ;
10. Putting a return type before a function name is not mandatory in a C Compiler. If you use a C++ Compiler to compile c programs, you must specify a return type.
11. #include includes an already written header file stdio.h which contains code for printf function. Without predefined functions, life becomes difficult to write everything every time on our own. Also the code without including files becomes clumsy to maintain and understand.

Keywords in C Language

There are a total of 32 keywords in C Language which can not be used for the names of variables and functions. Find the C Programming Keyword list below. Students need to remember these keywords just like that to attempt questions asked in their exams.

basics of c language for interview MCQ

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