Payment System

Design an interface/abstract class Payment with a method process(amount).

Implement CreditCard, PayPal, and Cash.

Use polymorphism to process different payments in an online store.

OOP Focus: Abstraction via interfaces.

Note: This is statement-only in the current Practice version; stdout should be empty.

Sample Test Verification

1 Test Case

Statement & Architecture VerificationThis drill validates class blueprints, object attributes, and method state transitions without requiring console printing.

solution.py

Pyodide v0.26.4 WASM

Initializing Monaco Python Environment...

Input (stdin)

(empty string)

Expected Output (stdout)

(no output expected)