String[] sa = {"one", "two", "three"} with other types, too?

Question

String[] sa = {"one", "two", "three"}
is a nice abbreviation in instantiating an object and initialize with multiple elements in one line of code.
are there similar syntax abbreviations for e.g. HashSet?
                HashSet hs = new HashSet();
                hs.add("one");
                hs.add("two");
                hs.add("three");is not very handy ... (especially for much more elements than 3!)

Answer 1

>                 HashSet hs = new HashSet();
hs.add("one");
hs.add("two");
hs.add("three");is not very handy ... (especially for much more
elements than 3!)Yes, that might not be very handy. But if you have many elements, String[] sa = {"one", "two", "three"} won't be very handy either. Anyway, initialising collection with large numbers of hard-coded items isn't something you do very often.
If you absolutely want to write it in one line in your editor, just do so:
HashSet hs = new HashSet();hs.add("one"); hs.add("two");hs.add("three");