import javax.swing.*;
import java.text.*; 

class Loan {
  
    public static void main(String[] args)

       {
         String initLoanStr, interestStr, monthPayStr;
         double initLoan, interest, monthPay, amountLeft;
         double minMonthPay, monthInterest,totalInterest;
         int month;

        // Get Data

         initLoanStr = JOptionPane.showInputDialog(null,"Enter Loan Amount");
         interestStr = JOptionPane.showInputDialog(null,"Enter Annual Interest");
         initLoan = Double.parseDouble(initLoanStr); 
         interest = Double.parseDouble(interestStr); 

         interest = interest/100.0;   // convert to decimal
         minMonthPay = initLoan*interest/12.0;
         
         DecimalFormat df = new DecimalFormat("0.00");
         monthPayStr = JOptionPane.showInputDialog(null,"Enter Monthly Payment greater than $"
                                                  + df.format(minMonthPay));
         monthPay = Double.parseDouble(monthPayStr); 

         month = 0;
         amountLeft = initLoan;
         totalInterest = 0;

         
         while (amountLeft > 0.01)
             {
                monthInterest = amountLeft*interest/12.0;
                totalInterest = totalInterest + monthInterest;
                amountLeft = amountLeft - (monthPay-monthInterest);
                month = month + 1;
             }

         JOptionPane.showMessageDialog(null,"It will take " + month + " months to pay off the loan\n" 
                                      + "Total interest paid will be $" + df.format(totalInterest));
                                       
                     
           
       System.exit(0);
       
    }
}