NavigableSet with own object types?

Question

How can I use tailSet() and headSet() for a NavigableSet<MyType> ? And also implement own rules which elements would qualify for a tailset or headset?

Like:

class MyType {
  String name;
  String number;
}

Now if I have a type("daniel", "12"), I want to have all elements which are alphabetically before daniel, and number > 12. This would be my headset. The opposite would be the tailset. (of course the comparisions do not make any sense, but you get what I'm trying to do).

Answer 1

让MyType实现Comparable或使用NavigableSet ，让您提供单独的Comparator例如TreeSet 。