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Bank Account Representing

Certification: Advanced Level Accuracy: 100% Submissions: 2 Points: 10

Design a Python class called BankAccount that represents a basic bank account. The class should have methods to deposit funds, withdraw funds, and check the current balance. The account should not allow withdrawals that would result in a negative balance.

    
        
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            Example 1
      
                
    • Input: account = BankAccount("12345", "John Doe", 1000)
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    • Output: 1300
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            Example 2
      
                
    • Input: account = BankAccount("67890", "Jane Smith", 500)
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    • Output: "Insufficient funds. Current balance: 500"
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  • Constraints
      
            
    • Account number must be a non-empty string
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    • Account holder name must be a non-empty string
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    • Initial balance must be non-negative
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    • Time Complexity: O(1) for all operations
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    • Space Complexity: O(1) for all operations
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Variables and Data TypesObject-Oriented ProgrammingPwCSnowflake
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Hint
Solution

Solution Hints

    
        
  • Use instance variables to store account details and balance
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  • Implement validation in the withdraw method to prevent negative balance
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  • Return appropriate messages or status for failed operations
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  • Consider implementing a transaction history (optional)
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  • Use proper encapsulation principles
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Steps to solve by this approach:

 Step 1: Create a BankAccount class with account number, holder name, and balance attributes.

 Step 2: Implement initialization with validation to prevent negative initial balances.

 Step 3: Add a deposit method that validates the amount and updates the balance.

 Step 4: Develop a withdraw method that checks for sufficient funds before updating balance.

 Step 5: Implement a get_balance method to retrieve the current balance.

 Step 6: Return informative messages about transaction results.

 Step 7: Handle edge cases like negative deposits or withdrawals exceeding available balance.

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