# Python Example: Classes and Object-Oriented Programming
class BankAccount:
    def __init__(self, owner, balance=0):
        self.owner = owner
        self.balance = balance
        self.transactions = []
    
    def deposit(self, amount):
        if amount > 0:
            self.balance += amount
            self.transactions.append(f"Deposited: ${amount}")
            return True
        return False
    
    def withdraw(self, amount):
        if amount <= self.balance and amount > 0:
            self.balance -= amount
            self.transactions.append(f"Withdrew: ${amount}")
            return True
        return False
    
    def get_balance(self):
        return f"${self.balance}"
    
    def show_transactions(self):
        print(f"Transaction history for {self.owner}:")
        for transaction in self.transactions:
            print(f"  - {transaction}")

# Create account
account = BankAccount("John Doe", 1000)

print(f"Account created for {account.owner}")
print(f"Initial balance: {account.get_balance()}")

# Perform transactions
account.deposit(500)
account.withdraw(200)
account.deposit(100)

print(f"Current balance: {account.get_balance()}")
account.show_transactions()