C "Hello, World!" Program
In this example, you will learn to print "Hello, World!" on the screen in C programming.
Video: Get Started With C Programming
To understand this example, you should have the knowledge of the following C programming topics:
Program to Display "Hello, World!"
#include <stdio.h>
int main() {
// printf() displays the string inside quotation
printf("Hello, World!");
return 0;
}
Output
Hello, World!
How "Hello, World!" program works?
- The
#includeis a preprocessor command that tells the compiler to include the contents ofstdio.h(standard input and output) file in the program. - The
stdio.hfile contains functions such asscanf()andprintf()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. Download
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