A simple command-line Java program that calculates monthly mortgage payments based on user input.

• Takes user input for:
  • Loan principal amount
  • Annual interest rate (percentage)
  • Loan term in years
• Validates inputs within sensible ranges
• Calculates monthly mortgage payments using the standard amortization formula
• Handles zero interest rate as a special case
• Displays monthly payment formatted as currency

• Java Development Kit (JDK) 11 or higher
• Command line terminal or IDE supporting Java

1. Clone or download this repository.

2. Open a terminal and navigate to the project folder.

3. Compile the Java source code:

   javac src/MortgageCalculator.java -d bin

4. Run the program:

   java -cp bin MortgageCalculator

5. Follow the on-screen prompts to input:

   • Principal amount (between $1,000 and $1,000,000)
   • Annual interest rate (1% to 30%)
   • Loan term in years (1 to 30)

Welcome to the Mortgage Calculator!
Please enter the principal (numbers only): 250000
Annual Interest Rate (no percent symbol): 3.5
Length of mortgage in years: 30
Your monthly mortgage payment is: $1122.61