What are some real-world examples of the strategy pattern?

What are some real-world examples of the strategy pattern?

The strategy pattern is a behavioral design pattern that enables selecting an algorithm's behavior at runtime. A common example is a payment system where different payment methods (credit card, PayPal, etc.) can be selected dynamically.

Can you give me more details about the payment system example?

Sure! In a payment system, you might have a PaymentContext class that uses a PaymentStrategy interface. Different classes like CreditCardPayment and PayPalPayment implement this interface, allowing the user to choose their preferred payment method at checkout.

Are there other examples outside of payment systems?

Yes, another example is sorting algorithms. You can have a SortContext that allows users to choose between different sorting strategies like QuickSort or MergeSort based on their needs.

How does the strategy pattern improve code maintainability?

The strategy pattern promotes code maintainability by encapsulating algorithms in separate classes, making it easier to add or modify strategies without affecting the context or other strategies.