You’ve encountered the following code several times in the initial chapters. Let’s dissect it to enhance comprehension.
| #include <stdio.h>
int main() { |
Line 1, #include <stdio.h>, is a library header file enabling the utilization of input and output functions like printf() (employed in line 4).
These header files augment the capabilities of C programs.
| If the mechanism of #include <stdio.h> seems unclear, don’t fret. Simply consider it as a standard inclusion that is nearly ubiquitous in your program structure. |
Line 2: A blank line serves to enhance code readability; although C disregards white space, we employ it for clarity.
Line 3: Another constant in C programs is main(), referred to as a function. Any code enclosed within its curly braces {} will execute.
Line 4: printf() is a function utilized for displaying or printing text on the screen. In our instance, it will output “Hello World!”.
|
Please be aware that in C, every statement is terminated by a semicolon (;). Keep in mind that the body of the
Bear in mind that while the compiler disregards white spaces, using multiple lines enhances code readability. |
Line 5: The statement return 0 concludes the main() function.
Line 6: Ensure to include the closing curly bracket } to formally conclude the main function.
