C Calculator Program Using Do While Loop & Switch Statement

Uploaded August 2026 | Updated September 2026, 1 week ago

In this C programming tutorial, we build a menu-driven calculator using the do while loop and switch statement.

You will learn how to create a calculator menu with options for addition, subtraction, multiplication, division, and exit. The program takes the user's choice and, when required, asks for two numbers before performing the selected calculation.

The tutorial also explains how to use an if condition to take number inputs only for calculation choices, how to use switch cases for different operations, and how to handle division by zero. A default case is used to display an invalid choice message when the user enters an option that is not listed in the menu.

The do while loop keeps the calculator running until the user selects the exit option. The example also demonstrates displaying a goodbye message and using a separator between multiple calculator runs.

Our Website
LearningLad.com

Social Media
Facebook facebook.com/LearningLad
Twitter twitter.com/LearningLadEdu
Instagram instagram.com/LearningLadOfficial

C Calculator Program Using Do While Loop & Switch Statement | Beginner Tutorial

Size Modifiers in C Programming | Short, Long & Unsigned Integers Explained

How to Install Python on Windows 11 (Latest Version) | Step-by-Step Guide for Beginners

$What is a Structures | How to define Structures | C Language Tutorial In this tutorial you will learn what is a Structure in C Programming language, How to define structures and use them in detail with example. A Structure is a collection of related variables under one name. When we define a structure in our C Program, we get a new datatype which can contain variables of different datatypes. Structures are called as derived datatypes because they are created by using other types available in the language. To define a structure we use the keyword struct. The syntax is as follows. struct structure_tag{ structure member1; structure member2; .... }; After that we can create the variables from the structure that we have defined. To access the members of a structure using structure variable we use . ( dot operator ) also called as structure member operator. Our Website http://www.LearningLad.com Social Media Facebook https://www.facebook.com/LearningLad twitter https://www.twitter.com/LearningLadEdu Instagram https://www.instagram.com/LearningLadOfficial$

How to Install C C++ Compiler / Tool set ( gcc g++ gdb Mingw w64 ) Easily in Windows 11 Computer

$Defining Structures Variables in Different ways in C Programming Language | Tutorial In this tutorial you will learn about defining structures and declaring structure variables in different ways / methods. A Structure is a collection of related variables under one name. When we define a structure in our C Program, we get a new datatype which can contain variables of different datatypes. Structures are called as derived datatypes because they are created by using other types available in the language. To define a structure we use the keyword struct. The syntax is as follows. struct structure_tag{ structure member1; structure member2; .... }; After that we can create the variables from the structure that we have defined. To access the members of a structure using structure variable we use . ( dot operator ) also called as structure member operator. We can declare structure variables while defining the structure also. Then we can define variables separately and we can initialise them also. While initialising the variable we can provide the values for the structure members using . and : operator. Our Website http://www.LearningLad.com Social Media Facebook https://www.facebook.com/LearningLad twitter https://www.twitter.com/LearningLadEdu Instagram https://www.instagram.com/LearningLadOfficial$

Square Pattern Printing with Diagonals in C Programming Language Tutorial

How to install NumPy SciPy Pandas Matplotlib libraries for Python in Windows 10

fprintf() Function to Write Data to a File : C Programming Language Video Tutorial

Internal Working of For, While & Do While Loops in C | Explained with Examples

How to Build / Compile and Run a C Program in Command Prompt ( cmd ) on Windows 10

How to Install Code::Blocks IDE & MinGW on Windows for C/C++ Programming