Question

In this assignment, you are asked to create a class called Account, which models a bank account. The requirement of the account class is as follows, (1) It contains two data members: accountNumber and balance, which maintains the current account name and balance, respectively. (1) It contains three functions: functions credit() and debit(), which adds or subtracts the given amount from the balance, respectively. The debit() function shall print ”amount withdrawn exceeds the current balance!” if amount is more than balance. A function print(), which shall print ”A/C no: xxx Balance=xxx” (e.g., A/C no: 991234 Balance=$88.88), with balance rounded to two decimal places. (When you submit your code, please upload your class code(s) and your test code to proves that your code works correctly.)

Answer 1

Following is the answer:

Account.java

public class Account {
    private int accountNumber;
    private double balance;

    //default constructor
    Account(){}

    //Constructor with 2 parameters
    Account(int accountNumber, double balance){
        this.accountNumber = accountNumber;
        this.balance = balance;
    }

    //function that credit amount
    public void credit(double amount){
        this.balance+=amount;
        System.out.println(amount + " Credited!");
    }

    //function that debit amount
    public void debit(double amount){
        if(amount > this.balance){
            System.out.println("amount withdrawn exceeds the current balance!");
        }else {
            this.balance-=amount;
        }
    }

    //function that print account details
    public void print(){
        System.out.println("A/C no: " + this.accountNumber + "  Balance: $" + Math.round(this.balance*100)/100.00);
    }
}

main.java

import java.util.Scanner;

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

        Scanner sc = new Scanner(System.in);

        int accNo;
        double amount;
        System.out.println("Enter Account No.: ");
        accNo = sc.nextInt();
        System.out.println("Enter balance: ");
        amount = sc.nextDouble();

        Account account = new Account(accNo, amount);
        char ch;
        do{
        System.out.println("Enter your choice: ");
        System.out.println("1. Credit: ");
        System.out.println("2. Debit: ");
        System.out.println("3. Print: ");
        int n = sc.nextInt();

        switch (n){
            case 1:
                System.out.println("Enter amount: ");
                double cr = sc.nextDouble();
                account.credit(cr);
                break;

            case 2:
                System.out.println("Enter amount: ");
                double db = sc.nextDouble();
                account.debit(db);
                break;

            case 3:
                account.print();
                break;
            default:
                System.out.println("Invalid choice!");
                break;
        }
            System.out.println("Do you want to continue?y/n");
            ch = sc.next().charAt(0);
        }
        while (ch != 'n');
    }
}

Output: