C hello workld
To write a simple "Hello, World!" program in C, follow these steps:
Include the necessary header file:
#include <stdio.h>
Declare the main function:
int main()
Open the main function with a curly brace:
{
Print the desired message using the
printf
function:printf("Hello, World!");
Close the main function with a curly brace:
}
End the program by returning 0 from the main function:
return 0;
Explanation of each step:
Step 1: The #include <stdio.h>
line is used to include the standard input/output library, which contains the printf
function.
Step 2: The int main()
line declares the main function, which is the entry point of the program.
Step 3: The opening curly brace {
marks the beginning of the main function.
Step 4: The printf
function is used to print the message "Hello, World!" to the console. The message is enclosed in double quotes.
Step 5: The closing curly brace }
marks the end of the main function.
Step 6: The return 0;
line is used to exit the program and return a value of 0 to the operating system, indicating successful execution of the program.
By following these steps, you can write a basic "Hello, World!" program in the C programming language.