Java Generics is a set of related methods or a set of similar types. Generics allow types Integer, String, or even user-defined types to be passed as a parameter to classes, methods, or interfaces. Generics are mostly used by classes like HashSet or HashMap.

Java Generics is a group of related types or a group of related methods. Integer, String, and even user-defined types can be provided as parameters to classes, methods, and interfaces thanks to generics. Usually, classes like HashSet or HashMap employ generics.