Java Console Calculator

A simple console-based calculator built in Java. It supports addition, subtraction, multiplication, division.

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Features

• Perform basic arithmetic operations: Add, Subtract, Multiply, Divide
• Handles division by zero gracefully
• Smart result display:
  • Prints integer result if no decimal
  • Prints decimal result if needed
• Input validation for menu selection (1–5)

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How to run

1. Compile the Java file:

   javac JavaConsoleCalculator.java

2. Run the program:

   java JavaConsoleCalculator

3. Follow the menu to perform calculation:

   <--- Welcome to Java Console Calculator --->
   Select the operation you want to perform:
   1. Addition
   2. Subtraction
   3. Multiplication
   4. Division
   5. Exit
   Enter Your Choice----: 1
   Enter first number: 10
   Enter second number: 5
   Result: 15
   -----------------------------------------
   

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Notes

This project demonstrates Java OOP, methods, loops, conditionals, and Scanner I/O.

Double wrapper class is used to handle divide-by-zero scenario.