Learn C Language Programming with Free Lessons & Tips

#include

#include

void main()

{

float rad;

const float pi=3.1412f;

const char newline='\n';

float area_circle,circum_circle;

clrscr();

printf("Enter radius of a circle:");

scanf("%f",&rad);

area_circle=pi*rad*rad;

printf("Area of a circle:%f %c",area_circle,newline);

circum_circle=2*(pi*rad);

printf("Circumference of a circle:%f",circum_circle);

getch();

}

// Sample program in C

// Standard Library/Header files

#include

#include

// Main function   

(Program execution starts here)

Int main()

{

// Function for cleaning screen 

clrscr();

// Function for printing statement on console

printf("Hello World");

//Function for holding the screen at runtime

getch();

return 0;

}

 C PROGRAMMING BASICS                                                                        10 Hours

Introduction to ‘ C’ programming –fundamentals – structure of a ‘C’ program – compilation and linking processes – Constants, Variables – Data Types –Expressions using operators in ‘C’ – Managing Input and Output operations – Decision Making and Branching – Looping statements – solving simple scientific and statistical problems.

C language is a general-purpose, high-level programming language developed by Dennis Ritchie. It was initially used for system development work (Operating Systems, Language Compilers, Assemblers, Text Editors, Network Drivers, Language Interpreters,etc.) because it produces code that runs nearly as fast as code written in assembly language.

Ofcourse, C is alwasy in demand. In the beginning a lot of the big project developed in C language. Now a days, there are a lot of language in market and speciallity is growing in IT field. For a big organization ERP(Enterprise Resource Planning) technologies is recommended because ERP tools already have all modules (HR, Admin, AR, AP, Inventory, Finance etc). But currently C is in demand.

Many programming languages base their syntax around C programming language because it was very close to machine code and thus easy to compile and execute the program. Also since C was one of the first programming languages to be introduced many developers tried to implement their ideas of a new programming language faster by copying the syntax of C language.