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Eiffel Programming: Building A Bank Account System by enzojade62: 8:37am On Nov 18, 2023 |
Ready to explore the features of Eiffel programming? In this blog post, we'll tackle a programming assignment that involves creating a basic bank account system. This assignment will test your understanding of contracts, classes, and assertions in Eiffel. If you need help with Eiffel assignment or have any questions, feel free to ask for assistance. Problem Description The Task: Your mission is to write Eiffel code to implement a basic bank account system. Create an Account class with methods for depositing, withdrawing, and checking the balance. Implement contracts using assertions to ensure the consistency and correctness of the account operations. How to Approach the Problem: Let's break down the problem into manageable steps: Step 1: Account Class Create an Account class in Eiffel. Define attributes for the account balance and methods for depositing, withdrawing, and checking the balance. Step 2: Contracts Implement contracts using assertions to define the preconditions and postconditions for each method. Ensure that the account balance remains non-negative after withdrawals. Step 3: Testing Test your implementation by creating instances of the Account class and performing various deposit and withdrawal operations. Use assertions to check that the contracts are not violated. Example Let's walk through a sample scenario to solidify your understanding. The provided Eiffel solution serves as a guide to help you implement your own solution. Understand the logic behind each step and adapt it to your programming style. class ACCOUNT create make feature balance: REAL make -- Initialize account with a zero balance. do balance := 0.0 end deposit (amount: REAL) -- Deposit the given amount into the account. require positive_amount: amount > 0 ensure balance_increased: balance = old balance + amount do balance := balance + amount end withdraw (amount: REAL) -- Withdraw the given amount from the account. require non_negative_balance: amount <= balance ensure balance_decreased: balance = old balance - amount do balance := balance - amount end check_balance: REAL -- Return the current balance of the account. do Result := balance end end Conclusion This programming assignment provides an opportunity to dive into Eiffel's unique approach to design by contract. As you implement the bank account system, you'll not only strengthen your Eiffel programming skills but also gain practical experience in ensuring program correctness through contracts and assertions. 1 Like |
Re: Eiffel Programming: Building A Bank Account System by Clifford021: 7:27am On Jan 17 |
Very well explained, thank you for sharing this. |
Re: Eiffel Programming: Building A Bank Account System by Nadwhalen97: 10:25am On Jan 17 |
Well put. I’ll check out the website |
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