java – 兴趣计算器不显示结果

import java.util.Scanner;

public class InterestCalculator {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        String userResponse = null;

        do {
            int quartersDisplayed = -1;
            double startingBalance = -1,interestRate = -1;

            do {
                System.out.println("Enter the numbers of quarters you wish to display that is greater than zero and less or equal to 10: ");
                userResponse  = input.next();

                try{
                    quartersDisplayed = Integer.parseInt(userResponse);
                } catch(NumberFormatException e) {

                }

                if(quartersDisplayed <= 0 || quartersDisplayed > 10) {
                    System.out.println("Sorry,that value is not valid.");
                } else {
                    break;
                }
            } while(true);


            do {
                System.out.println("Enter the starting balance (must be greater than zero): ");
                userResponse  = input.next();

                try {
                    startingBalance = Double.parseDouble(userResponse);
                } catch(NumberFormatException e) {

                }

                if(startingBalance <= 0) {
                    System.out.println("Sorry,that value is not valid.");
                } else {
                    break;
                }
            } while(true);


            do {
                System.out.println("Enter the interest rate (greater than zero less than twenty percent): ");
                userResponse  = input.next();

                try {
                    interestRate = Double.parseDouble(userResponse);
                } catch(NumberFormatException e) {

                }

                if(interestRate <= 0 || interestRate > 20){
                    System.out.println("Sorry,that value is not valid.");
                } else {
                    break;
                } 
            } while(true);


            System.out.println("You have entered the following amount of quarters: "
                            + quartersDisplayed);
            System.out.println("You also entered the starting balance of: " + startingBalance);
            System.out.println("Finally,you entered the following of interest rate: "
                            + interestRate);
            System.out.println("If this information is not correct,please exit the program and enter the correct information.");

            double quarterlyEndingBalance = startingBalance + (startingBalance * interestRate / 100 * .25);
            System.out.println("Your ending balance for your quarters is "
                    + quarterlyEndingBalance);
            System.out.println("Do you want to continue?");
            userResponse = input.next();

            if("y".equalsIgnoreCase(userResponse) || "yes".equalsIgnoreCase(userResponse))
                continue;
            else
                break;

        } while(true);
    }
}

我正在寻找的样本输出：

Enter number of quarters from 1 to 10
5
Enter the beginning principal balance greater than zero
4500
Enter the interest rate percentage without the percent sign,greater than 0 percent and less than/equal to 20%
3.5
You entered a principal balance of $4500.0 for 5 quarters at 3.5% interest.
Is this correct? (y/n)
y
Quarter       Beginning       Interest       Ending
Number        Balance         Earned         Balance
1             4500.00          39.38         4539.38

等