What is Generics?

Generics are a feature of type systems that allows you to write code that can work with multiple types without having to be rewritten for each type. They enable you to define classes, interfaces, and methods that can operate on a variety of data types while maintaining type safety. This is achieved by using type parameters, which are placeholders for the actual types that will be used when the generic code is instantiated. Generics are commonly used to create reusable data structures and algorithms, such as lists, stacks, queues, and sorting algorithms.