Question

Congratulations, you have been hired by Shaky Bank and Trust as a staff programmer. Your task for this assignment is to create a simple bank accounting system and demonstrate its use.

Create an Account class as per the following specifications:

1. three private instance variables: accountOwnerName (String), accountNumber (int) and balance (double)

2. a single constructor with three arguments: the account owner's name, accountNumber and starting balance. In the constructor, initialize the instance variables with the provided parameter values.

3. get and set methods for each of the instance variables.

4. A computation method, named makeDeposit, that takes the deposit amount as a decimal value for its argument. The method adds the deposit amount to the account's balance. This method doesn't return anything to the caller.

5. A computation method, named makeWithdrawal, that takes the withdrawal amount as a decimal value for its argument. The method subtracts the withdrawal amount from the account's balance. This method doesn't return anything to the caller.

6. A toString method to return a string containing all information stored about the account

Answer 1

/******************************Account.java*******************/

package shaky_bank;

/**
* The Class Account.
*/
public class Account {

   /** The account owner name. */
   private String accountOwnerName;

   /** The account number. */
   private int accountNumber;

   /** The balance. */
   private double balance;

   /**
   * Instantiates a new account.
   *
   * @param accountOwnerName the account owner name
   * @param accountNumber the account number
   * @param balance the balance
   */
   public Account(String accountOwnerName, int accountNumber, double balance) {
       this.accountOwnerName = accountOwnerName;
       this.accountNumber = accountNumber;
       this.balance = balance;
   }

   /**
   * Gets the account owner name.
   *
   * @return the account owner name
   */
   public String getAccountOwnerName() {
       return accountOwnerName;
   }

   /**
   * Sets the account owner name.
   *
   * @param accountOwnerName the new account owner name
   */
   public void setAccountOwnerName(String accountOwnerName) {
       this.accountOwnerName = accountOwnerName;
   }

   /**
   * Gets the account number.
   *
   * @return the account number
   */
   public int getAccountNumber() {
       return accountNumber;
   }

   /**
   * Sets the account number.
   *
   * @param accountNumber the new account number
   */
   public void setAccountNumber(int accountNumber) {
       this.accountNumber = accountNumber;
   }

   /**
   * Gets the balance.
   *
   * @return the balance
   */
   public double getBalance() {
       return balance;
   }

   /**
   * Sets the balance.
   *
   * @param balance the new balance
   */
   public void setBalance(double balance) {
       this.balance = balance;
   }

   /**
   * Make deposit.
   *
   * @param amount the amount
   */
   public void makeDeposit(double amount) {

       if (amount > 0) {

           this.balance += amount;
       } else {

           System.out.println("Balance cannot be negative!");
       }
   }

   /**
   * Make withdrawal.
   *
   * @param amount the amount
   */
   public void makeWithdrawal(double amount) {

       if (amount < balance) {

           this.balance -= amount;
       } else {

           System.out.println("Insufficient balance!!");
       }
   }

   @Override
   public String toString() {
       return "Account name: " + accountOwnerName + "\n" + "Account number: " + accountNumber + "\n" + "Balance: "
               + balance + "\n";
   }

}
/****************************Bank.java****************************/

package shaky_bank;

/**
* The Class Bank.
*/
public class Bank {

   public static void main(String[] args) {

       Account account = new Account("John Doe", 12345, 1000);

       System.out.println(account.toString());

       account.makeDeposit(200);

       System.out.println(account.toString());

       account.makeWithdrawal(500);

       System.out.println(account.toString());
   }
}
/*****************************output********************************/

Account name: John Doe
Account number: 12345
Balance: 1000.0

Account name: John Doe
Account number: 12345
Balance: 1200.0

Account name: John Doe
Account number: 12345
Balance: 700.0

Please let me know if you have any doubt or modify the answer, Thanks :)