Information And Technology (FahadTheITGuy), Programming Languages, Web development

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How To Write Hello World Program In C++ Programming Language

- June 22, 2025

How To Write a Hello World Program In C++ Programming Language In this post we will look at how a C++ program works. We will try make the example as simple as possible for the beginners so they can easily understand the basics of C++. We will write a simple C++ hello world program in C++ programming language which is considered as the very first program in almost every programming language. A Brief Introduction to the C++ Programming Language C++ is an object oriented programming language and it is an extension to C programming language. C++ is a general purpose programming language and it is also a case-sensitive language. C++ is very powerful programming language it has features of both low level and high level programming languages, and that is why it is called mid level programming language. Hello World program in C++ programming language Above is an example of a simple Hello World program in C++ programming language. Now let us look at the code, and I will take you...

What is File Handling in the C Programming Language

- December 07, 2024

What is File Handling in the C Programming Language In programming languages, we sometimes encounter situations where we need to store data from a program. Sometimes, it is not enough to just create data during program execution and lose it as the program stops. So, in such situations, we need to store data at some permanent location so that we can access it later on and perform certain operations on it. These operations include creating a new file, opening a file, reading from a file, writing to a file, and deleting the file. From here the concept of file handling comes into the picture. This file handling helps us to store the data permanently and then perform various operations on that stored data and use that data for other important purposes. So in simple words, a file is a location or container in computer storage devices for storing the data. How to work with files in the C programming language In C programming language we can perform different functions o...

How to use Structures in C Programming Language

- November 21, 2024

How to use Structures in C Programming Language In programming languages like C, C++, C#, etc., sometimes we encounter a situation where we need to store different variables with different datatypes, but these variables are related to one object or instance. In such situations, we use data structures. Today, we are going to discuss a simple technique that will help us store related variables in one place, namely, structures. We will look at how structures are used in the C programming language to help us achieve our target. What is Structure in C Programming Language We can consider structure as a special type of data structure that we can use to store data related to an entity under one umbrella and we can call it structure. We can consider a structure as a user-defined data type and it allows us to store various data types in one place. In structures, each data member used inside the structure body is called a member of a structure. How we can create a Structure...

Arrays in C Programming Language (One-Dimensional Array)

- November 06, 2024

Arrays in C Programming Language (One-Dimensional Array) In today's blog post, we will explore one of the fundamental data structures known as arrays. Arrays play a vital role in a programming language, they allow us to use a single variable that can store multiple values of the same data type. And thus we don't need to make separate variables to store different values. Another important point to keep in mind is that in arrays the elements or values are stored in contiguous memory locations. And also the starting index of arrays is zero. Why do we use Arrays? One of the most important points that we already discussed is that arrays can store multiple values in a single variable. Also, we can use looping statements in order to traverse through arrays and can also process the data easily. We can also manage the memory easily and efficiently. Another very important point to keep in mind is that we can also send and receive large collec...

What is Call by Value and Call by Reference in C Programming

- October 31, 2024

What is Call by Value and Call by Reference in C Programming We use functions in programming languages like C, C++, C#, etc. Today we will cover some important concepts about functions that are implemented in C programming language. The topic we will cover today is the functions and the use of call by value and call by reference in C programming. This is a very important topic for functions. As we all know when we use functions we can pass values to functions from within the main program, the point where we call a function. There are two ways to pass data to functions in C language i.e.: Call by value and Call by reference . What is Call by value in C programming In Call by value, we pass the values of parameters or arguments that are used inside the main program. We only send variables' values to the function parameters. As shown in the above coding example, we cannot modify or change the values of parameters that are used inside the main program. In the...

How to use functions in C programming Language

- October 17, 2024

Functions in C Programming Language In programming languages, there is a concept of functions that we use to implement some functionality in our code. Functions help us reuse the code and enhance its performance, as they are written once and tested again and again. In C programming we can use functions to break the code into smaller pieces that are easily maintainable. A function is a piece of code that is enclosed in curly brackets, and a function only runs and executes when it is called within a main program in C programming language. We can also pass data from our main program or function to any user-defined function. As we already discussed, the main advantage or benefit of functions is reusability. In functions, we can define the code once, and after that, we can use the function code many times, which enhances the reusability of the code. We can also refer to functions as procedures or sub-routines in some programming languages. Basically when we run a C program...

Nested Loops in C Programming Language

- October 09, 2024

Nested Loops in C Programming Language In programming languages, we have control statements or looping statements which are the following, 1) while-loop 2) do-while loop 3) for loop we have seen loop implementation one at a time i.e., one loop type implemented in the program. Now we will look at how to use the nested loops in the C programming language. The first thing to keep in mind is what we mean by the term nested loop. The main idea behind nested loops is to place a loop inside another loop. In this article, we are going to look at nested for loops in the C programming language. As we previously discussed we can use a loop inside another loop. So today we are going to look at how we can use a for loop inside another for loop . Remember that if we have two for loops one for loop inside another for loop, and if both the loops are set to three iterations, then for each iteration of the outer loop the inner loop will execute three times i.e. if the outer loop runs ...

for loop in C programming language for beginners

- September 24, 2024

for loop in C programming language for beginners In programming languages, we have control statements that are used to control the behavior of the programs as per user requirements. One of these control statements is in a for loop that we use to iterate the piece of code several times as per user requirement or the programmer's logic. The most common use of a for loop is traversing data structures from beginning to end. One such example of data structures is the arrays and linked lists. Basically, we use a for loop in the conditions when we are sure about the exact number of times the block of code is to be iterated. In such situations, it is preferred to use the for loop. Syntax of for loop in c: for(expression1; expression2; expression3) { // block of code to be executed here } Now if we look at the syntax of the for loop it contains for keyword and round brackets in which there are three expressions given which are separated by a semicolon (;) symbol....

while loop in c programming language

- September 14, 2024

while loop in the C programming language In computer programming languages there is a concept of control flow statements. In control flow statements we specify some conditions and based on those conditions whether they are true or false we run some iterative piece of code if the condition is true and terminate the control statement if the condition is false. There are mainly three types of control flow statements that we use in our programs to get the desired result, these three types of control statements are Three types of Control flow statements 1) do-while loop 2) while loop 3) for loop In today's post, we will discuss the while loop control statement. while loop is also known as a pre-tested loop in which before running the piece of code the condition is examined first. If the condition is true only then the while loop will execute and if the condition is false then the while loop statement terminates. In these control statements, the piece of code ...

How does a do-while loop work in the c programming language?

- September 10, 2024

How does a do-while loop work in the c programming language? We use control statements in programming languages to execute code based on certain conditions. In C programming the concept of control statement is the same. These control statements iterate pieces of code multiple times according to user requirements. These iterations are controlled by some conditions that are given by the programmer or the developer. There are mainly three types of control statements or looping statements, which are, 1) do-while loop 2) while loop 3) for loop Today our main focus is on the do-while loop. We are going to look at the do-while loop and the basic syntax of the do-while loop. After that, we are going to look at an example to get a better understanding of do-while loop and its working. These loop statements increase the performance of the code. Below is the syntax of the do-while loop do{ //Write the coding part here }while(condition); Note a very important point about the do-while l...

Switch statement in c programming language

- September 05, 2024

Switch statement in c programming language What Is a switch statement? The switch statement is a conditional statement that we use to run different code sections based on some conditions. The switch statement also works like the if else-if else ladder statement. As we know in the else-if ladder statement we implement multiple conditions it is exactly how the switch statement works. In the switch statement, we use the term case: that tells us about any specific condition within the switch expression area switch(expression). What is the syntax of a switch statement in c programming switch(Some_Epression) { case value1: // insert code here break; case value2: // insert code here break; default: // insert code here } Rules and regulations of switch statement: Always remember that the expressions that are used within the switch statement i.e. switch(expression), this expression must be a single character or an integer value. As discussed earlier case: ...

How if else-if else ladder statement works in C program.

- August 30, 2024

How if else-if else ladder statement work in the C program. In C programming or any other programming language, there is a concept of control statements or conditional statements. In one of our previous blog posts, we shed some light on the if else statement in the C program. In this post, we will cover the if else-if else ladder statement, which is used when multiple conditions need to be addressed. No, we are going to look at the syntax of the if else-if else ladder statement. Syntax of if else-if else ladder statement if (condition) { // code to be executed if the condition is true } else if ( condition ) { // code to be executed if the condition is true } else if ( condition ) { // code to be executed if the condition is true } else { // code to be executed if none of the conditions is true } The if else-if else ladder statement is very similar to the if else statement. The main difference is the addition of an else-if part in it. In the above s...

if and if-else statement in C programming language

- August 25, 2024

If and if-else statements in the C programming language When we start writing a program, if the program is simple, like adding two numbers, or a Hello World program, we don't need any decision-making in such programs. But as the programs get complicated, they become complex, and we must make decisions. For such programs, we use conditional statements, which help in making decisions. One of the most important conditional statements is 1) if statement 2) if-else statement What is the if condition? It is a conditional statement used in almost every programming language. The if statement executes a piece of code based on a specific condition when it is true. When the condition is true, it executes the code with curly brackets. What is the syntax of if statement The if statement has a very simple syntax, as shown below if (condition) { //This piece of code will run if the given condition is true } the above line of code tells us that when the conditio...

How to add two numbers in C programming language

- August 21, 2024

How to add two numbers in the C programming language In this blog post, we will look at how we can use Visual Studio Community 2022 and write C language code to add two numbers. 1) Writing the program: This is a very basic and most important program for beginners. In this program, beginners deal with input and output functions like print() and scanf() for input and output. Let's dive into the coding part: 2) Explaining the coding part: At the start of the code, we can look at two lines starting with #define and #include. The first line is written so we can use print() and scanf() without any safety warning because printf_s() and scanf_s() are now preferred because they are safer to use. In the second line, we use stdio.h header file so that we can use input and output functions i.e., print() and scanf(). The int main() function is the entry point to your C program. It is a necessary function to run your C code. After that, we declared three variables num1, num2, and sum. We...