What does V mean in Java?
that it returns nothingThe JVM uses a compact way of storing method signatures, of which constructors are considered a special case.
() indicates a method taking no arguments.
V indicates that it returns nothing..
What is the difference between E and T in Java generics?
6 Answers. Well there’s no difference between the first two – they’re just using different names for the type parameter ( E or T ). The third isn’t a valid declaration – ? is used as a wildcard which is used when providing a type argument, e.g. List Mean in Java?
It means your Class reference can hold a reference to any Class object. It’s basically the same as “Class” but you’re showing other people who read your code that you didn’t forget about generics, you just want a reference that can hold any Class object.