Program to Display "Hello World"

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#include <stdio.h>
int main() {
   /* printf() displays the string inside quotation on screen*/
   printf("Hello World");
   return 0;
}



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Output:
Hello World



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How program works?
  • The #include is a preprocessor command that tells the compiler to include the contents of stdio.h (standard input and output) file in the program.
  • The stdio.h file contains functions such as scanf() and printf() to take input and display output respectively.
  •  If you use the printf() function without writing #include <stdio.h>, the program will not compile.
  • The execution of a C program starts from the main() function.

    •   printf() is a library function to send formatted output to the screen. In this program, printf() displays Hello World text on the screen.

    •     The return 0; statement is the "Exit status" of the program. In simple terms, the program ends with this statement.

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