Java Generics

What are Generics?

Generics allow classes and methods to operate on types specified as parameters, providing type safety without needing to write separate code for each data type.

List<String> names = new ArrayList<>();
names.add("Asha"); // only Strings allowed, checked at compile time

Why Generics Matter

Generics catch type mismatches at compile time rather than at runtime, and they eliminate the need for manual casting when retrieving elements from a collection.