Question

Required components:

A controller class with Java main() method and a PaymentCalculator class to hold the data and methods for the application.

Scenario/Information:

If you carry a balance on a credit card, it can be nice to see how long it would take to payoff the card. For this scenario, you should design a Java application the prints a credit card payment schedule. Inputs for your program should include: Customer’s name (first and last), the account number (as an integer), the current balance (as double) and the percent of the balance that will paid off each month (i.e. 5% as double). Your program should use the Java Scanner class to allow the user to enter the input from the Eclipse console. After receiving the input, print a report to the Eclipse console that includes: a header showing the input information and a table of payments. Sample output is shown in Figure 1.

Assume the following:

At the beginning of every month 1.5% interest is added to the balance.

• The customer payment will be calculated using the monthly balance (including the interest) and the Percent to Pay input.

• The ending balance can be calculated using: beginning balance + interest - payment.

• Assume that when the monthly ending balance is less than the initial monthly payment, the customer can afford to pay off the remainder (plus interest) in the next month.

• You can use the Java NumberFormat class to make values appear as currency when printed.

What to do:

Write a new simple Java program with Eclipse with two classes, a Controller class and a PaymentCalculator class. The Controller should include just a main method. The main method should simply declare a PaymentCalculator object and the call methods from the PaymentCalculator to create the output. The PaymentCalculator class should include field variables for each of the inputs, two constructors (a default no-parameter constructor and a second constructor which allows all input values to be passed in to the object), getters and setters for each field variable, and separate methods that: get the input from the user, print the header of the report, print the data rows of the report, print the footer of the report.

Answer 1

If you have any doubts, please give me comment...

import java.util.Locale;

import java.util.Scanner;

import java.text.NumberFormat;

public class PaymentCalculator {

public static void main(String[] args) {

Scanner scnr = new Scanner(System.in);

String firstName, lastName;

int accountNo;

double balanceDue, percentPay;

double interest, payment, balance;

System.out.print("First Name: ");

firstName = scnr.next();

System.out.print("Last Name: ");

lastName = scnr.next();

System.out.print("Account #: ");

accountNo = scnr.nextInt();

System.out.print("Balance Due: ");

balanceDue = scnr.nextDouble();

System.out.print("Percent to Pay: ");

percentPay = scnr.nextDouble();

System.out.println("\n************************************************************");

System.out.println("Credit Payment Schedule");

System.out.println("Customer: " + firstName + " " + lastName);

System.out.println("Account #: " + accountNo);

System.out.printf("Balance Due: %.2f", balanceDue);

System.out.println("\n------------------------------------------------------------");

System.out.printf("%5s %10s %10s %10s\n", "Month", "Interest", "Payment", "Balance");

int month = 1;

balance = balanceDue;

NumberFormat fmt = NumberFormat.getCurrencyInstance(new Locale("en", "US"));

double initialMonthBal = 0.0;

do {

interest = balance * (1.5 / 100);

payment = (balance + interest) * (percentPay / 100);

if (month == 1)

initialMonthBal = payment;

if (balance < initialMonthBal) {

payment = balance + interest;

balance = 0.0;

} else

balance = balance + interest - payment;

System.out.printf("%5d %10s %10s %10s\n", month, fmt.format(interest), fmt.format(payment),

fmt.format(balance));

month++;

} while (balance != 0.0);

}

}