Top Answers

1. Splitting a string at every n-th character
   92 votes
2. Why doesn't String's hashCode() cache 0?
   59 votes
3. Why do ImmutableList.of() and friends prohibit null elements?
   37 votes
4. Why does LinkedHashSet<E> extend HashSet<e> and implement Set<E>
   32 votes
5. Guava libraries and GWT
   20 votes