Concrete Strategies:?

Short answer: These are the concrete classes that implement the ISortStrategy interface. Each concrete class provides its own implementation of the Sort method. BubbleSort: The BubbleSort class implements the sorting algorithm for bubble sort. public class BubbleSort : ISortStrategy

Example code

{
public void Sort(List<int> list)
{ Console.WriteLine("Sorting using Bubble Sort"); // Implement the bubble sort algorithm here }
} ● QuickSort: The QuickSort class implements the sorting algorithm for quicksort. public class QuickSort : ISortStrategy
{
public void Sort(List<int> list)
{ Console.WriteLine("Sorting using Quick Sort"); // Implement the quicksort algorithm here }
}

Real-world example (ShopNest)

Use a GoF pattern in ShopNest only when it removes duplication or makes a change safer—explain the problem it solves in the interview.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.