Advanced Java Calculator 🧮

A professional command-line scientific calculator built using Java.
This calculator supports basic arithmetic operations, scientific calculations, history tracking, exception handling, and an interactive menu-driven interface.

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🚀 Features

🔢 Basic Arithmetic Operations

• Addition (+)
• Subtraction (-)
• Multiplication (*)
• Division (/)

🧠 Scientific Operations

• Power Calculation (x^y)
• Square Root (√x)
• Factorial (n!)
• Percentage Calculation

📜 Calculation History

• Stores all calculations during runtime
• Displays previous calculations instantly

⚠️ Exception Handling

• Handles division by zero
• Prevents invalid square root operations
• Detects invalid user inputs gracefully

🎯 Interactive Console UI

• Professional menu-driven interface
• Continuous calculation support
• Easy-to-use navigation system

🛠️ Clean Code Architecture

• Modular methods
• Reusable functions
• Organized code structure

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🧑‍💻 Technologies Used

• Java
• OOP Concepts
• Exception Handling
• Java Collections Framework
• Scanner Class

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📸 Sample Menu

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      ADVANCED JAVA CALCULATOR
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1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Power
6. Square Root
7. Factorial
8. Percentage
9. Show History
10. Exit

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💡 Example Operations

Addition

Enter first number: 10
Enter second number: 20
Result: 30.0

Factorial

Enter number: 5
Result: 120

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🧠 Concepts Demonstrated

• Methods
• Loops
• Switch Statements
• Exception Handling
• ArrayList
• User Input Handling
• Scientific Computation
• Modular Programming

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👨‍💻 Author

N.D. Nitesh

Computer Science Engineering Student
Passionate about Java Development, Full Stack Development, and Software Engineering.