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Begin Your Journey with C

To initiate your learning in C, you require the following:

  • A text editor for crafting C code
  • A compiler like GCC to convert the C code into a machine-understandable language

There are various text editors and compilers to select from. For this tutorial, an IDE (Integrated Development Environment) will be used by us.

Setting up the C IDE

An IDE is a software suite that consolidates the basic tools needed to write and test the code. Popular IDEs include Code::Blocks, Eclipse, and Visual Studio which are all free to use and facilitate both the editing and debugging of C code.

Note: Although web-based IDEs can be used, they typically have more limitations compared to their desktop counterparts.

We recommend starting with Code::Blocks. The latest version can be downloaded from here.

Let's Start with C

Create your first C file by following the steps below:

  1. Open Codeblocks
  2. Go to File > New > Empty File
  3. Write the following C code and save the file as myfirstprogram.c:
#include <stdio.h>, int main() { printf("Welcome to Fynd Academy!"); return 0;}

The above code might seem incomprehensible for now, we'll break it down in later chapters. For now, concentrate on running the code.

Executing Your Code

After writing the code, it's time to run it. In Codeblocks, navigate to Build > Build and Run. Your result will look something like this:

Welcome to Fynd Academy!

Great job! You've just written and executed your first C program.

Your C Learning Journey with Fynd Academy

Learning C with Fynd Academy is facilitated by our "Practice it Yourself" tool. It concurrently illustrates the code and the outcome, simplifying every new part you learn:

#include <stdio.h>int main() { printf("Welcome to Fynd Academy!"); return 0;} Welcome to Fynd Academy!

Practice it Yourself ยป

Fynd Academy Pathfinder

Track your progress as you embark on your learning journey. Best of all, it's complimentary!

Here is your modified content as per your specifications: C Functions A function is characterised as a defined unit of code. It is only executed when specifically invoked. A function can accept data parameters and is often utilised for carrying out specific actions. Reusability is one of the key advantages of functions. The code needs to be defined once and can be invoked numerous times. Predefined Functions You have already been utilising functions in this tutorial course. 'main()' and 'printf()' are examples of these functions. 'main()' is used for executing code, and 'printf()' is utilised for text output/display on the screen. Example ```html int main() { printf("Fynd Academy!"); return 0;} ``` Creating a Function To declare a function, mention the function's name, followed by parentheses '()' and curly brackets '{}': Syntax ```html void myFunction() { // code to be executed } ``` About the Example 'myFunction()' is the function's designation 'void' implies the function does not return a value. More information on return values will be covered later. Inside the function body, include the code that outlines what the function should perform. Calling a Function Declared functions are saved for future use and are only executed when called. To invoke a function, indicate the function's name succeeded by two parentheses '()' and a semicolon ';' myFunction() is used to display a text when invoked. Example Inside main, call myFunction(): ```html // Declare a function void myFunction() { printf("I just got executed!"); } int main() { myFunction(); // Invoke the function return 0; } // Output: "I just got executed!" ``` A function can be invoked multiple times: Example ```html void myFunction() { printf("I got executed again!");} int main() { myFunction(); myFunction(); myFunction(); return 0; } // Output: "I got executed again!" // "I got executed again!" // "I got executed again!" ``` C Exercises Test Yourself With Exercises Exercise: Declare a method named myFunction and call it inside main(). ```html void { printf("I got executed again!"); } int main() { return 0; } ```