Java generics and varargs

Question

I\'d like to implement a function with both generics and varargs.

public class Question {
    public static  void doNastyThingsToClasses(Class

        

Answer 1

The second argument Class... that must extend the class that the first argument is (ex. argument one is a Question so the second argument be something that extends Question.

The Breakdown:
NastyThingsToClasses(Object.class, Question.class, SomeQuestion.class); // OK
Everything extends Object so the second argument is correct.

NastyThingsToClasses(Question.class, SomeQuestion.class); // OK
SomeQuestion extends Question so thats fair game.

NastyThingsToClasses(Question.class, Object.class, SomeQuestion.class);
Object does not extend Question hence error.

hopefully that cleared things up.

-Brett