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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!

<h2>C Format Specifiers</h2> <p>Format specifiers are used in tandem with the printf() function to inform the compiler of the data type housed by the variable. Essentially, it's a placeholder for the value of the variable. A format specifier starts with a percent sign %, followed by a character.</p> <p>For instance, to display the value of an int variable, use the format specifier %d surrounded by double quotes(""), inside the printf() function:</p> <h4>Example</h4> <pre> int sampleInt = 15; printf("%d", sampleInt); </pre> <p>For printing other data types, use %c for char and %f for float:</p> <h4>Example</h4> <pre> int sampleInt = 15; float sampleFloat = 5.99; char sampleChar = 'D'; printf("%d\n", sampleInt); printf("%f\n", sampleFloat); printf("%c\n", sampleChar); </pre> <p>To mix text and a variable, separate them with a comma inside the printf() function:</p> <h4>Example</h4> <pre> int sampleInt = 15; printf("My preferred number is: %d", sampleInt); </pre> <p>To print multiple data types within a single printf() function, use the following approach:</p> <h4>Example</h4> <pre> int sampleInt = 15; char sampleChar = 'D'; printf("My number is %d and my letter is %c", sampleInt, sampleChar); </pre> <h2>C Exercises</h2> <p>Test your knowledge with exercises</p> <h4>Exercise:</h4> <p>Use the appropriate format specifier to display the value of sampleInt:</p> <pre> int sampleInt = 15; printf("", sampleInt); </pre> <h3>Complete the Exercise</h3>