What Is Generics?

Generics allow you to design classes and methods that are more flexible. We can surely tell you that they are flexible as we have tested it and we know for sure that those things work. They can be used in all situations and help you make your code faster, more productive, and more type safe. Generics allow you to define a class or method with type as a parameter. This means the style isn't specified when declaration or instantiation. It's identified only when you use it! Generics are great because they allow for universal classes and methods, which help improve performance, productivity, and type safety. Generics are a big part of ensuring that all your collections are as generic as possible. Be careful, though, because the more generic your collection is, the less flexibility it will have. For example, a list of any name might be hard to search for. You can't easily filter for cat names, dog names, or human names. Similarly, if you have a list of any item, you won't be able to sort it by type. Using your list for unordered information might be acceptable, like a shopping list. If you want to be able to search and sort your collection, you will have to make it specific to one data type. Generics are also known as parametric polymorphism, which means you can use them in many situations where you might need different collections with various operations. For example: If you had an array with just one element in it, that would be like having an empty array, but if you had an empty array with no features in it (like the kind we just talked about), well, then that would be pretty useless since there wouldn't be anything in it!