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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!

<div> <h1>C Multidimensional Arrays</h1> <h2>Multidimensional Arrays</h2> <p>In an earlier topic, we explored arrays, otherwise known as single dimension arrays. These are an often-used tool while programming in C. Yet, if you wish to arrange your data in a tabular form, akin to a table with distinct rows and columns, it is crucial to understand multidimensional arrays.<br />A multidimensional array essentiality is an array of arrays.<br />Arrays can comprise any number of dimensions, but in this chapter, we'll study the most commonly seen, two-dimensional arrays (2D).</p> <h2>Two-Dimensional Arrays</h2> <p>A 2D array often gets referred to as a matrix, a table with rows and columns.<br />Below is an example of how to create a 2D array of integers:</p> <pre><code> int table[2][3] = ; </code></pre> <p>The first dimension indicates the number of rows [2], while the second dimension denotes the number of columns [3]. The values get aligned in order of the row, as demonstrated below:</p> <h2>Access the Elements of a 2D Array</h2> <p>To access a two-dimensional array element, specify both the row's index number and the column.<br />The statement below accesses the value of the first row (0) and third column (2) of the matrix array.</p> <pre><code> int table[2][3] = ; printf("%d", table[0][2]); // Outputs 2 </code></pre> <p>Do not forget that array indexes always start with 0: [0] is the initial element, while [1] is the second element, and so forth.</p> <h2>Change Elements in a 2D Array</h2> <p>To modify the value of an element, refer to the element's index number within every one of the dimensions:<br />The following example changes the value of the first row (0) and first column (0) element:</p> <pre><code> int table[2][3] = ; table[0][0] = 9; printf("%d", table[0][0]); // Now outputs 9 instead of 1 </code></pre> <h2>Loop Through a 2D Array</h2> <p>To iterate through a multidimensional array, you need one loop for each dimension of the array.<br />The following example outputs all the elements contained in the matrix array:</p> <pre><code> int table[2][3] = ; int a, b; for (a = 0; a < 2; a++) { for (b = 0; b < 3; b++) { printf("%d\n", table[a][b]); } } </code></pre> </div>