Question

Create a class named BankAccount with data fields for a count number and a balance. Include a constructor that takes arguments for each field. The constructor sets the balance to 0 if it is below the required $200.00 minimum for an account. Include a method that displays the account details, including an explanation if the balance was reduced to 0.

Write the class TestAccount in which you instantiate two BankAccount objects, prompt a user for values of the account number and the balance, and then display the values for each field in each account object. Make sure to format the balance output as currency, with the “$" sign and values of dollars and cents (use Java currency formatter). Save both classes as BankAccount.java and TestAccount.java.

Compile, run and test the application. Submit two original .java files as an attachment to your initial response. (Please do not copy/paste the whole file codes into your response.) Zip them into a single .zip file and attach the .zip file to your post. In the initial response itself, provide comments and explanations of your solution, including the UML diagram of your application.

Answer 1

//BankAccount.java

import java.text.NumberFormat;
import java.util.Locale;

public class BankAccount
{
        int accountNumber;
        double balance;
        public BankAccount(int accountNumber, double balance)
        {
            this.accountNumber = accountNumber;
            if(balance < 200)
                this.balance = 0;
            else
                this.balance = balance;
        }
        public void display()
        {
            System.out.println("Account number: " + this.accountNumber);
            NumberFormat us = NumberFormat.getCurrencyInstance(Locale.US);
            if(this.balance == 0)
                System.out.println("Your balance was reduced to 0 as balance was below required minimum $200.00");
            System.out.println("Balance: " + us.format(this.balance));
        }
}

//TestAccount.java

import java.util.Scanner;

public class TestAccount
{
    public static void main(String[] args)
    {
        int accountNumber1, accountNumber2;
        double balance1, balance2;
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter account number for first account: ");
        accountNumber1 = scanner.nextInt();
        System.out.print("Enter balance for first account: ");
        balance1 = scanner.nextDouble();
        System.out.print("Enter account number for second account: ");
        accountNumber2 = scanner.nextInt();
        System.out.print("Enter balance for second account: ");
        balance2 = scanner.nextDouble();
        scanner.close();
        BankAccount a = new BankAccount(accountNumber1, balance1);
        BankAccount b = new BankAccount(accountNumber2, balance2);
        a.display();
        b.display();
    }
}

OUTPUT: