In this code, we are declaring our ... name of a generic class or interface but without any type arguments. Raw types were common before generics were introduced in Java 5. Today, developers ...

Notice the detail that interface methods are implicitly abstract. This means we don’t need to explicitly declare them as abstract. When default methods were introduced in Java 8, some developers ...

An interface is implicitly abstract. You do not need to use the abstract keyword when declaring an interface. Each method in an interface is also implicitly abstract, so the abstract keyword is not ...