Pausing Loop Displays

Question

Greetings to all:
I am currently enrolled in my first JAVA class and am struggling with my current program requirements. Below is the code I wrote so far, I am trying to figure out how to pause the loop to display one page of information at a time instead of the continous scroll. I would greatly appreaciate any ideas suggestions.
import java.math.*;
import java.text.*;
import java.util.*;
// The Payment class displays a predetermined monthly mortgage payment
public class Payment
     public static void main(String[]arguments)
          //Creates variables
          double Amount;
          int Term;
          double InterestRate;
          //Assigns values to variables
          Amount = 200000.00;
          Term = 30;
          InterestRate = .0575;
          //Alters the display format of Amount variable
          NumberFormat n = NumberFormat.getCurrencyInstance(Locale.US);
          String s = n.format(Amount);
          //Creates variables
          double MonthlyInterestRate;
          int TotalMonths;
          double Payment;
          //Assigns values to variables
          MonthlyInterestRate = InterestRate / 12;
          TotalMonths = Term * 12;
          Payment = Amount* MonthlyInterestRate / (1-(Math.pow((1+MonthlyInterestRate ),(-TotalMonths))));
          //Takes Payment variable and round answer to 2 decimal points
          BigDecimal bd = new BigDecimal(Payment);
bd = bd.setScale(2, BigDecimal.ROUND_UP);
          //Instructions to display various varibles
          System.out.println("Cost of Mortgage "+ s);
          System.out.println("Length of Term " + Term);
          System.out.println("Interest Rate 5.75% ");
          System.out.println("The monthly payment of this loan is $" + bd);
          System.out.println();
          //Creates new set of variables
          double MonthlyInterest;
          double MonthlyPrincipal;
          double TotalInterestPaid;
          int NumberofPayments;
          //Creates Balance variable
          double Balance;
          //Initialization of Balance variable
          Balance = 200000;
          TotalInterestPaid = 0;
          NumberofPayments = 360;
          //creates loop
          do
          MonthlyInterest = Balance * (InterestRate / 12);
          MonthlyPrincipal = Payment - MonthlyInterest;
          Balance = Balance - MonthlyPrincipal;
          TotalInterestPaid = TotalInterestPaid + MonthlyInterest;
          NumberofPayments = NumberofPayments - 1;
          //Takes current balance and rounds the answer to two digits
          BigDecimal bb = new BigDecimal(Balance);
bb = bb.setScale(2, BigDecimal.ROUND_UP);
          BigDecimal tip = new BigDecimal(TotalInterestPaid);
                    tip = tip.setScale(2, BigDecimal.ROUND_UP);
          System.out.println("New Loan Balance " + bb);
          System.out.println();
          System.out.println("Total Interest Paid " + tip);
          System.out.println();
          //Loop condition
          while (NumberofPayments > 0);
//Ends Application

Answer 1

here's another way
import java.text.*;
import java.util.*;
import java.io.*;
import java.math.BigDecimal;
class Payment
  public static void main(String[]arguments)
    BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
    try
      double amount = 200000.00;;
      int term = 30;
      double interestRate = .0575;
      NumberFormat n = NumberFormat.getCurrencyInstance(Locale.US);
      String sAmount = n.format(amount);
      double monthlyInterestRate = interestRate / 12.0;
      int totalMonths = term * 12;
      double payment = amount*monthlyInterestRate/(1-(Math.pow((1+monthlyInterestRate),(-totalMonths))));
      BigDecimal bd = new BigDecimal(payment);
      bd = bd.setScale(2, BigDecimal.ROUND_UP);
      System.out.println("Cost of Mortgage "+ sAmount);
      System.out.println("Length of Term " + term);
      System.out.println("Interest Rate 5.75% ");
      System.out.println("The monthly payment of this loan is $" + bd);
      System.out.println();
      double monthlyInterest;
      double monthlyPrincipal;
      double totalInterestPaid = 0;
      int numberOfPayments = 360;
      double balance = amount;
      do
        monthlyInterest = balance * (interestRate / 12.0);
        monthlyPrincipal = payment - monthlyInterest;
        balance -= monthlyPrincipal;//perhaps should be less monthly payment
        totalInterestPaid += monthlyInterest;
        numberOfPayments--;
        BigDecimal bb = new BigDecimal(balance);
        bb = bb.setScale(2, BigDecimal.ROUND_UP);
        BigDecimal tip = new BigDecimal(totalInterestPaid);
        tip = tip.setScale(2, BigDecimal.ROUND_UP);
        System.out.println("New Loan Balance " + bb);
        System.out.println();
        System.out.println("Total Interest Paid " + tip);
        System.out.println();
        if(numberOfPayments %12 == 0)//12, or pick whatever number you want
          System.out.print("\nPress [ENTER] to continue...");
          String junk = input.readLine();
      }while (numberOfPayments > 0);
    catch(Exception e){e.printStackTrace();}
}