Making your first program in C
#include <stdio.h>
int main() {
printf(“Hello
World!”);
}
Ok, now
rewrite the above in Dev-C++. To save, go to file
and choose save_as > choose a location > type the filename
> add a .c suffix to the filename (if
your filename was hello, it’s now hello.c) > click save
To run you
program, click execute and choose compile and run.
If Dev-C++
fail, to run your program; it means you used the copy and paste tactic. So, go to your codes to
delete and rewrite the double quotes.
Understanding these code
#include <stdio.h>
As the name
says it, Dev-C++ was designed for C++. However, it can
also work for C because C++ was developed in C. So, the above line tell Dev-C++ that we are creating a C
program. If it was C++ we would use #include <iostream>. Stdio.h is
short for Standard Input Output Header. We will learn more about headers next
time.
int main() creates a function called main and two
curry brackets { } are which hold the
instructions for this function. The two parenthesis () are which indicate it is
a function. Once you try to run a program made in C, it call a function call main. A C program can’t
run with no main function.
printf is a built-in C function for displaying
text on the screen. Contents between the two parenthesis () are passed to the
function so that instructions in that function can access these contents. The
double quotes are used to hold strings in C. String is
another name for text.
© Mihigo ER Anaja
Write to me for more;
Posts
0 Comments