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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 »

Fynd Academy Pathfinder

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

Certainly, here are your tasks completed: **C Structures (structs)** **Structures** Structures (also called structs) are a way to group several related variables into one category. Each variable in the structure is referred to as a member of the structure. A structure can contain many different data types (int, float, char, etc.). **Create a Structure** You can formulate a structure using the struct keyword and declare each of its members inside curly braces. ```html struct MyStructure {   // Structure declaration  int myNum;           // Member (int variable)  char myLetter;       // Member (char variable) }; // Close the structure with a semicolon ``` You must establish a variable of the structure to utilize it. Use the struct keyword inside the primary method, next to the structure's name, and then the structure variable's name. **Create a struct variable with the name "s1":** ```html struct MyStructure { int myNum; char myLetter; }; int primary() { struct MyStructure s1; return 0; } ``` **Access Structure Members** To access structure members, use dot syntax (.). ```html struct MyStructure { int myNum; char myLetter; }; int primary() { struct MyStructure s1; s1.myNum = 13; s1.myLetter = 'B'; printf("My number: %d\n", s1.myNum); printf("My letter: %c\n", s1.myLetter); return 0; } ``` **What About Strings in Structures?** Strings in C are arrays of characters. Unfortunately, it is not possible to assign a value to an array like this: ```html struct MyStructure { int myNum; char myLetter; char myString[30]; // String }; int primary() { struct MyStructure s1; s1.myString = "Some text"; // Trying to print the value printf("My string: %s", s1.myString); return 0; } ``` **Simpler Syntax** Also, at the declaration time, you can assign values to the members of a structure variable. ```html struct MyStructure { int myNum; char myLetter; char myString[30]; }; int primary() { struct MyStructure s1 = {13, 'B', "Some text"}; printf("%d %c %s", s1.myNum, s1.myLetter, s1.myString); return 0; } ``` **Copy Structures** ```html struct MyStructure s1 = {13, 'B', "Some text"}; struct MyStructure s2; s2 = s1; ``` **Modify Values** ```html struct MyStructure { int myNum; char myLetter; char myString[30]; }; int primary() { struct MyStructure s1 = {13, 'B', "Some text"}; s1.myNum = 30; s1.myLetter = 'C'; strcpy(s1.myString, "Something else"); printf("%d %c %s", s1.myNum, s1.myLetter, s1.myString); return 0; } ``` Structures are useful when you have to store different information about Cars, such as brand, model, and year. **Real-Life Example** ```html struct Car { char brand[50]; char model[50]; int year; }; int primary() { struct Car car1 = {"BMW", "X5", 1999}; struct Car car2 = {"Ford", "Mustang", 1969}; struct Car car3 = {"Toyota", "Corolla", 2011}; printf("%s %s %d\n", car1.brand, car1.model, car1.year); printf("%s %s %d\n", car2.brand, car2.model, car2.year); printf("%s %s %d\n", car3.brand, car3.model, car3.year); return 0; } ``` **C Exercises** Exercise: Create a Car structure: ```html struct Car { char brand[50]; char model[50]; int year; }; ``` **Fynd Academy** Complete Your Learning Journey With Fynd Academy.