public class ItemQuery { private Set<String> tagSet; private Set<Blog> blogs; private Float minPrice; private Float maxPrice; private int page; private int pageSize;
ItemQuery item = new ItemQuery(); item.tagSet = new HashSet<String>(); Class type = item.tagSet.getClass(); System.out.println(Collection.class.isAssignableFrom(type)); System.out.println(type.isInstance(java.util.Set.class)); boolean r = type.equals(Set.class); System.out.println(r); System.out.println(type);