OOP done!

README.md

@@ -1,6 +1,5 @@
 # LAB_OOP_102
 
-
 Create a Python class called `BankAccount` that simulates a simple bank account. The class should have the following functionalities:
 
 1. It should have a constructor that accepts the `account_holder` name and initial balance (`initial_balance`), setting the balance to zero if the initial balance is not provided.
@@ -10,7 +9,8 @@ Create a Python class called `BankAccount` that simulates a simple bank account.
 5. A method called `get_account_holder` that returns the name of the account holder.
 
 **NOTE:**
-- Do validation, and other OOP principles as needed. 
+
+- Do validation, and other OOP principles as needed.
 - arrange your code in at least 2 files.
 
----------
+---

bank_account.py

@@ -0,0 +1,33 @@
+class BankAccount:
+    def __init__(self, account_holder, initial_balance=0):
+        if not account_holder or not isinstance(account_holder, str):
+            raise ValueError("Account holder name must be a valid string.")
+
+        if initial_balance < 0:
+            raise ValueError("Initial balance cannot be negative.")
+
+        self.__account_holder = account_holder
+        self.__balance = initial_balance
+
+    def deposit(self, amount):
+        if amount <= 0:
+            raise ValueError("Deposit amount must be greater than zero.")
+
+        self.__balance += amount
+        return self.__balance
+
+    def withdraw(self, amount):
+        if amount <= 0:
+            raise ValueError("Withdrawal amount must be greater than zero.")
+
+        if amount > self.__balance:
+            raise Exception("Insufficient funds.")
+
+        self.__balance -= amount
+        return self.__balance
+
+    def get_balance(self):
+        return self.__balance
+
+    def get_account_holder(self):
+        return self.__account_holder

main.py

@@ -0,0 +1,25 @@
+from bank_account import BankAccount
+
+def main():
+    try:
+        account = BankAccount("Sadeem", 1000)
+
+        print("Account Holder:", account.get_account_holder())
+        print("Initial Balance:", account.get_balance())
+
+        # Deposit
+        print("After Deposit (500):", account.deposit(500))
+
+        # Withdraw
+        print("After Withdraw (300):", account.withdraw(300))
+
+        # Attempt to withdraw more than balance
+        print("Attempting to withdraw 2000...")
+        print(account.withdraw(2000))
+
+    except Exception as e:
+        print("Error:", e)
+
+
+if __name__ == "__main__":
+    main()