I am supposed to Add the following method to allow BankAccounts to transfer money to another BankAccount. Where would I add this method to make sure it works for all BankAccounts, including SavingsAccount and CheckingAccount?
The method im supposed to use is transferTo(BankAccount destinationAccount, int transferAmount)
public class BankAccount {
private String accountHolderName;
private String accountNumber;
private int balance;
public BankAccount(String accountHolder, String accountNumber) {
this.accountHolderName = accountHolder;
this.accountNumber = accountNumber;
this.balance = 0;
}
public BankAccount(String accountHolder, String accountNumber, int balance) {
this.accountHolderName = accountHolder;
this.accountNumber = accountNumber;
this.balance = balance;
}
public String getAccountHolderName() {
return accountHolderName;
}
public String getAccountNumber() {
return accountNumber;
}
public int getBalance() {
return balance;
}
// Update the balance by using the DollarAmount.Plus method
public int deposit(int amountToDeposit) {
balance = balance + amountToDeposit;
return balance;
}
// Update the balance by using the DollarAmount.Minus method
public int withdraw(int amountToWithdraw) {
balance = balance - amountToWithdraw;
return balance;
}
public int transferTo(BankAccount destinationAccount, int transferAmount) {
return balance;
}
}
Assumptions:
The method transferTo can be implemented like the following:
public int transferTo(BankAccount destinationAccount, int transferAmount) {
this.balance -= transferAmount;
destinationAccount.deposit(transferAmount);
return balance;
}
In a real world application you need to ensure that this operation will be always atomic and thread-safe. Additionally, using int
for the balance is strongly not recommended.
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