#0166

Simple Bank Account Class

MediumPython25 min20 XP

Problem

Create a BankAccount class with balance, deposit(amount), and withdraw(amount). Withdraw should raise ValueError if amount exceeds balance.

OOP interview questions often test state changes, validation, and method behavior rather than fancy inheritance.

class BankAccount:

Example 1

Inputstart 100, deposit 50, withdraw 30

Output120

100 + 50 - 30 leaves balance 120.

CodePython

class BankAccount:
    def __init__(self, balance=0):
        # write your code here
        pass

class BankAccount:
    def __init__(self, balance=0):
        # write your code here
        pass

Visible browser tests run here when available.

Testcases1 visible / 3 hidden categories

Core example

Inputstart 100, deposit 50, withdraw 30

Expected120

100 + 50 - 30 leaves balance 120.

Hidden Test Categories

empty or minimal inputduplicates or tieslarger input