🧮 Simple Calculator - Spring Boot Application

🚀 Overview

This is a simple calculator web application built using Spring Boot and Spring Tool Suite 4 (STS4). The application allows users to perform basic arithmetic operations (➕ Addition, ➖ Subtraction, ✖️ Multiplication, and ➗ Division) through a user-friendly web interface.

✨ Features

• ✅ Perform basic arithmetic operations: Addition, Subtraction, Multiplication, and Division.
• 🎨 User-friendly HTML/CSS front-end with a responsive design.
• ⚙️ Backend implementation using Spring Boot MVC architecture.
• 💡 Lightweight and easy to run on localhost.

🛠 Tech Stack

• Backend: Spring Boot, Spring MVC
• Frontend: HTML, CSS
• Development Tools: Spring Tool Suite 4 (STS4)

📁 Project Structure

├── src/main/java/com/example/demo
│   ├── CalculatorApplication.java     # Main Spring Boot Application
│   ├── CalciCalculator.java          # Controller handling requests
│   ├── CalciService.java             # Service for arithmetic operations
│
├── src/main/resources/templates
│   ├── calci.html                    # Calculator UI
│   ├── resultpage.html                # Result display page
│
├── pom.xml                            # Maven dependencies
└── README.md                          # Project Documentation

🔧 Installation and Setup

📌 Prerequisites

Make sure you have the following installed:

• ☕ Java JDK 8 or later
• 🛠 Spring Tool Suite 4 (STS4) or any IDE that supports Spring Boot
• 🏗️ Maven

📜 Steps to Run the Application

1. Clone the Repository:

   git clone https://github.com/YOUR_GITHUB_USERNAME/SimpleCalculator.git
   cd SimpleCalculator

2. Open the project in STS4 or any IDE.
3. Run the Application:

   mvn spring-boot:run

4. Access the Application:
   • Open a browser and navigate to:
     🌍 http://localhost:8080/

🖥 Usage

1. 🔢 Enter two numbers in the input fields.
2. ✏️ Click on an operation (ADD, SUB, MUL, DIV).
3. 📊 The result will be displayed on the result page.

📸 Screenshots

ADD

DIV

Division by zero is not allowed

📜 License

This project is licensed under the MIT License.

👨‍💻 Author

[Rohit Swami] - Developer of Simple Calculator