Java Calculator

A simple console-based Calculator built using Java. This project performs basic arithmetic operations through a menu-driven interface and demonstrates core Java programming concepts.

Features

• ➕ Addition
• ➖ Subtraction
• ✖️ Multiplication
• ➗ Division
• Even Odd check
• Currency converter IND-USD
• MIN/MAX number checker
• 🧮 Remainder (Modulus)
• 📋 Menu-Driven Program
• 🔁 do-while Loop
• 🔀 switch-case
• ⚠️ Exception Handling
• ✅ Input Validation

Concepts Used

• Java Methods
• Scanner Class
• Conditional Statements (if, switch)
• Loops (do-while)
• Exception Handling (try-catch-finally)
• ArithmeticException
• InputMismatchException

Technologies

• Java
• JDK 17+ (or any compatible version)

Project Structure

Calculator.java
README.md

How to Run

Project Preview

1. Clone the repository

git clone https://github.com/AmanBarbate/Java-Calculator.git

2. Open the project in your IDE (VS Code, IntelliJ IDEA, or Eclipse).

3. Compile the program

javac Calculator.java

4. Run the program

java Calculator

Sample Output

========== JAVA CALCULATOR ==========
1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Remainder
6. Exit

Enter your choice: 1

Enter first number: 20
Enter second number: 30

Result = 50

Future Improvements

• Scientific Calculator
• Power and Square Root Operations
• Calculation History
• GUI Version using Java Swing or JavaFX
• File Storage for History

Author

Aman

Learning Java and building projects to improve problem-solving and software development skills.

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