Java syntax with greater than/less than: <> are they class specific?

Question

I\'ve been doing an Android tutorial and encountered a class with the following:

public class ImageAndTextAdapter extends ArrayAdapter {
         


        

Answer 1

This is part of Generics which was introduced in Java1.5, Sometimes you don't know what type of object you can pass or get, so you can pass a generic type of object "?". In this particular instance, you are passing ArrayAdapter object which contains String objects. you can read more http://en.wikipedia.org/wiki/Generics_in_Java