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  • lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank

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+12
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lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/BankAtm.java

Lines changed: 12 additions & 50 deletions
Original file line numberDiff line numberDiff line change
@@ -7,17 +7,13 @@
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import com.codedifferently.lesson17.bank.exceptions.AccountNotFoundException;
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/** Represents a bank ATM. */
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public class BankAtm {
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private final Map<UUID, AccountOwner> accountOwnerById = new HashMap<>();
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private final Map<String, CheckingAccount> accountByNumber = new HashMap<>();
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private final Map<String, SavingAccount> savingsAccountByNumber = new HashMap<>();
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/**
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* Adds a checking account to the bank. Also supports BusinessCheckingAccount.
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*
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* @param account The account to add.
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*/
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public void addAccount(CheckingAccount account) {
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accountByNumber.put(account.getAccountNumber(), account);
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account
@@ -29,11 +25,7 @@ public void addAccount(CheckingAccount account) {
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});
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}
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/**
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* Adds a savings account to the bank.
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*
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* @param account The account to add.
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*/
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public void addAccount(SavingAccount account) {
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savingsAccountByNumber.put(account.getAccountNumber(), account);
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account
@@ -45,35 +37,23 @@ public void addAccount(SavingAccount account) {
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});
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}
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/**
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* Finds all checking accounts owned by a customer or business.
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* Updated to support both Customer and Business owners.
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*
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* @param customerId The ID of the customer or business.
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* @return The unique set of checking accounts owned by the customer or business.
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*/
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public Set<CheckingAccount> findAccountsByCustomerId(UUID customerId) {
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return accountOwnerById.containsKey(customerId)
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? accountOwnerById.get(customerId).getAccounts()
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: Set.of();
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}
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/**
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* Deposits funds into an account. Now supports both checking and savings accounts.
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* The method first tries to find a checking account, then a savings account.
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*
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* @param accountNumber The account number.
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* @param amount The amount to deposit.
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*/
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public void depositFunds(String accountNumber, double amount) {
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// Try checking account first
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CheckingAccount checkingAccount = accountByNumber.get(accountNumber);
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if (checkingAccount != null) {
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checkingAccount.deposit(amount);
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return;
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}
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// Try savings account
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SavingAccount savingsAccount = savingsAccountByNumber.get(accountNumber);
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if (savingsAccount != null) {
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savingsAccount.deposit(amount);
@@ -83,34 +63,22 @@ public void depositFunds(String accountNumber, double amount) {
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throw new AccountNotFoundException("Account not found");
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}
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/**
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* Deposits funds into a checking account using a check.
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* Note: Checks can only be deposited into checking accounts, not savings accounts.
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*
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* @param accountNumber The checking account number.
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* @param check The check to deposit.
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*/
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public void depositFunds(String accountNumber, Check check) {
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CheckingAccount account = getAccountOrThrow(accountNumber);
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check.depositFunds(account);
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}
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/**
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* Withdraws funds from an account. Now supports both checking and savings accounts.
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* The method first tries to find a checking account, then a savings account.
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*
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* @param accountNumber The account number.
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* @param amount The amount to withdraw.
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*/
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public void withdrawFunds(String accountNumber, double amount) {
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// Try checking account first
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CheckingAccount checkingAccount = accountByNumber.get(accountNumber);
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if (checkingAccount != null) {
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checkingAccount.withdraw(amount);
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return;
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}
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// Try savings account
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SavingAccount savingsAccount = savingsAccountByNumber.get(accountNumber);
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if (savingsAccount != null) {
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savingsAccount.withdraw(amount);
@@ -120,13 +88,7 @@ public void withdrawFunds(String accountNumber, double amount) {
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throw new AccountNotFoundException("Account not found");
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}
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/**
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* Gets a checking account by its number or throws an exception if not found.
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*
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* @param accountNumber The account number.
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* @return The checking account.
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* @throws AccountNotFoundException If the checking account is not found.
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*/
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private CheckingAccount getAccountOrThrow(String accountNumber) {
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CheckingAccount account = accountByNumber.get(accountNumber);
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if (account == null) {

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