First Program in C

 Structure of Program

Sample Code of Print 'Hello World' in screen

                    #include<stdio.h>

                    

                    int main()

                    {

                        printf("Hello World");

                        return 0;

                     }

Detail Description about program:

#include<stdio.h>	stdio is standard for input/output, this allows us to use some commands which includes a file called stdio.h. or This is a preprocessor command. That notifies the compiler to include the header file stdio.h in the program before compiling the source-code.
int/void main()	int/void is a return value, which will be explained in a while.
main()	The main() is the main function where program execution begins. Every C program must contain only one main function. or This is the main function, which is the default entry point for every C program and the void in front of it indicates that it does not return a value.
Braces	Two curly brackets "{...}" are used to group all statements. or Curly braces which shows how much the main() function has its scope.
printf()	It is a function in C, which prints text on the screen. or This is another pre-defined function of C which is used to be displayed text string in the screen.
return 0	At the end of the main function returns value 0.

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