chore: reinstate a file that was deleted in Lesson17

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

@@ -85,4 +85,4 @@ private CheckingAccount getAccountOrThrow(String accountNumber) {
     }
     return account;
   }
-}
+}

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/BusinessChecking.java

@@ -0,0 +1,25 @@
+package com.codedifferently.lesson17.bank;
+
+import java.util.Set;
+
+public class BusinessChecking extends CheckingAccount {
+  // By extending the checking account class it will call to the methods of the checking account.
+
+  public BusinessChecking(String accountNumber, Set<Customer> owners, double initialBalance) {
+    super(accountNumber, owners, initialBalance);
+
+    boolean hasBusinessOwner =
+        false; // Have a for loop for to detect if the customer is a business owner//
+    for (Customer owner : owners) {
+      if (owner.isBusiness()) {
+        hasBusinessOwner = true;
+        break;
+      }
+    }
+
+    if (!hasBusinessOwner) { // If that customer is not a business owner, it will throw an
+      // exception//
+      throw new IllegalArgumentException("Business account must have at least one business owner.");
+    }
+  }
+}

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/CheckingAccount.java

@@ -1,8 +1,9 @@
 package com.codedifferently.lesson17.bank;
 
-import com.codedifferently.lesson17.bank.exceptions.InsufficientFundsException;
 import java.util.Set;
 
+import com.codedifferently.lesson17.bank.exceptions.InsufficientFundsException;
+
 /** Represents a checking account. */
 public class CheckingAccount {
 
@@ -128,4 +129,4 @@ public String toString() {
         + isActive
         + '}';
   }
-}
+}

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/Customer.java

@@ -10,16 +10,18 @@ public class Customer {
   private final UUID id;
   private final String name;
   private final Set<CheckingAccount> accounts = new HashSet<>();
+  private final boolean isBusiness;
 
   /**
    * Creates a new customer.
    *
    * @param id The ID of the customer.
    * @param name The name of the customer.
    */
-  public Customer(UUID id, String name) {
+  public Customer(UUID id, String name, boolean isBusiness) {
     this.id = id;
     this.name = name;
+    this.isBusiness = isBusiness;
   }
 
   /**
@@ -75,4 +77,8 @@ public boolean equals(Object obj) {
   public String toString() {
     return "Customer{" + "id=" + id + ", name='" + name + '\'' + '}';
   }
+
+  public boolean isBusiness() {
+    return isBusiness;
+  }
 }

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/SavingsAccount.java

@@ -0,0 +1 @@
+

lesson_17/bank/bank_app/src/main/java/com/codedifferently/lesson17/bank/account.java

@@ -0,0 +1,17 @@
+package com.codedifferently.lesson17.bank;
+
+public class Account {
+
+package com.codedifferently.lesson17.bank;
+
+class account {
+  public static void main(String[] args) {
+  static Object getOwners() {
+    return "Owner information not available.";
+  }
+  static Object ›() {
+    throw new UnsupportedOperationException("Not supported yet.");
+  }
+}
+
+

lesson_17/bank/bank_app/src/test/java/com/codedifferently/lesson17/bank/BankAtmTest.java

@@ -21,8 +21,8 @@ class BankAtmTest {
   @BeforeEach
   void setUp() {
     classUnderTest = new BankAtm();
-    customer1 = new Customer(UUID.randomUUID(), "John Doe");
-    customer2 = new Customer(UUID.randomUUID(), "Jane Smith");
+    customer1 = new Customer(UUID.randomUUID(), "John Doe", false);
+    customer2 = new Customer(UUID.randomUUID(), "Jane Smith", false);
     account1 = new CheckingAccount("123456789", Set.of(customer1), 100.0);
     account2 = new CheckingAccount("987654321", Set.of(customer1, customer2), 200.0);
     customer1.addAccount(account1);
@@ -35,7 +35,7 @@ void setUp() {
   @Test
   void testAddAccount() {
     // Arrange
-    Customer customer3 = new Customer(UUID.randomUUID(), "Alice Johnson");
+    Customer customer3 = new Customer(UUID.randomUUID(), "Alice Johnson", false);
     CheckingAccount account3 = new CheckingAccount("555555555", Set.of(customer3), 300.0);
     customer3.addAccount(account3);
 

lesson_17/bank/bank_app/src/test/java/com/codedifferently/lesson17/bank/BusinessCheckingAccountTest.java

@@ -0,0 +1,39 @@
+package com.codedifferently.lesson17.bank;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.util.Set;
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+
+public class BusinessCheckingAccountTest {
+
+  public class BusinessCheckingTest {
+
+    @Test
+    public void testValidBusinessCheckingAccount() {
+      Customer bob = new Customer(UUID.randomUUID(), "Bob", true); // is a business
+      Set<Customer> owners = Set.of(bob);
+
+      BusinessChecking account = new BusinessChecking("BUS-001", owners, 100.0);
+      assertEquals("BUS-001", account.getAccountNumber());
+    }
+
+    @Test
+    public void testInvalidBusinessCheckingAccountThrowsException() {
+      Customer alice = new Customer(UUID.randomUUID(), "Alice", false); // personal
+      Set<Customer> owners = Set.of(alice);
+
+      Exception exception =
+          assertThrows(
+              IllegalArgumentException.class,
+              () -> {
+                new BusinessChecking("BUS-002", owners, 100.0);
+              });
+
+      assertEquals(
+          "Business account must have at least one business owner.", exception.getMessage());
+    }
+  }
+}

lesson_17/bank/bank_app/src/test/java/com/codedifferently/lesson17/bank/CheckingAccountTest.java

@@ -20,8 +20,8 @@ class CheckingAccountTest {
   @BeforeEach
   void setUp() {
     owners = new HashSet<>();
-    owners.add(new Customer(UUID.randomUUID(), "John Doe"));
-    owners.add(new Customer(UUID.randomUUID(), "Jane Smith"));
+    owners.add(new Customer(UUID.randomUUID(), "John Doe", false));
+    owners.add(new Customer(UUID.randomUUID(), "Jane Smith", false));
     classUnderTest = new CheckingAccount("123456789", owners, 100.0);
   }