Build a Simple Calculator with C++: A Step-by-Step Guide
Are you ready to unleash your inner programmer and create a functional calculator using C++? Look no further! This tutorial will walk you through the process of building a simple calculator that takes an arithmetic operator and two operands as input from the user.
Understanding the Basics
Before we dive into the code, make sure you have a solid grasp of the following C++ concepts:
- C++ switch..case Statement
- C++ break Statement
- C++ continue Statement
The Program in Action
This program prompts the user to enter an arithmetic operator (+, -, *, /) and two operands. The operator is stored in the op variable, while the two operands are stored in num1 and num2, respectively.
The Switch Statement: The Heart of the Program
The switch statement is used to check the operator entered by the user. If the user enters +, the program executes the statements for case: '+' and terminates. Similarly, if the user enters -, the program executes the statements for case: '-' and terminates. This process is repeated for the * and / operators.
Error Handling: A Crucial Aspect
But what happens if the user enters an operator that doesn’t match any of the four characters (+, -, *, /)? In this case, the default statement is executed, displaying an error message.
Putting it All Together
With these building blocks in place, you’re ready to create your own simple calculator using C++. Take the first step towards becoming a proficient programmer and give it a try!
Related Programs to Explore
- C++ Program to Add Two Numbers
- C++ Program to Multiply two Numbers