What are some advantages of using generic collections over non-generic collections?

Short answer: Generic collections offer several advantages: Type Safety: Compile-time checking prevents runtime errors. Performance: Avoids boxing/unboxing of value types. Code Clarity: Cleaner code without explicit casting. Reusability: Generic code can work with any data type.

Example code

List<string> names = new List<string>(); names.Add("Alice"); // Valid // names.Add(123); // Compile-time error Real-world use case: When managing a list of product names or order numbers, using List<string> or List<int> ensures that invalid data types are caught at compile time.

Real-world example (ShopNest)

Prefer List<Order> over ArrayList in ShopNest. Generics catch type mistakes at compile time and avoid boxing when you store ints or decimals.

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.