how to find the length of a set? [closed]

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Closed 6 years ago.

I'm trying to find the lentgh of a set from a preference. I tired set.length, but it doesnt work. Anyone know another way to find a length of a set?

   set = prefs.getStringSet("key", null);
            int X = set.length; //it doesn't like length....

Answer 1

I believe instead of set.length, you'll want to call set.size()

Answer 2

Your set is a Set<String>, not a String[]. So you have to call:

int x = set.size();