OOP Calculator (Java)

A simple calculator built using Object-Oriented Programming principles in Java.

Features

• Supports addition, subtraction, multiplication, and division
• Uses OOP structure (classes, methods, and exception handling)
• Command-line interface

📂 Project Structure

oop-calculator/
 ├── src/
 │   ├── Calculator.java
 │   ├── Operation.java
 │   └── Main.java
 └── README.md

▶️ How to Run

1. Open terminal and navigate to src folder.
2. Compile:

   javac Main.java

3. Run:

   java Main

Example

Enter first number: 12
Enter operator (+, -, *, /): *
Enter second number: 5
Result: 60.0