c program hello world program

C Program to display " hello world "

#include 
int main()
{
   // printf() displays the string inside quotation
   
   printf("Hello, World!");
   
   return 0;
}

Output 

Hello, World!

How "hello world" program works ?

• The #include is preprocessor command that tells the compiler to include the content of stdio.h ( Standard input and output ) file in the program.
• The stdio.h file contains function such as scanf() and print() to takee input and display output respectively.
• If you see the printf() function without writing #include<stdio.h>, the program will ot be compiled.
• The execution of C program starts from the main() function.
• printf() is a library function to send formatted output to the screen. In this program, printf() display hello world to the screen.
• The return 0; statement is the Execution of the program. In simple terms. The program ends with this statement.