java - fj.data.Set comparison -

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in java.util, can use containsall method compare 2 java.util.set. what's best way compare 2 fj.data.set?

is there "valuable" benefit of using fj on java.util?

i have never used library nor ever, looking through api found method

public final boolean subsetof(set<a> s)

returns true if set subset of given set.

parameters: s - set superset of set if method returns true.

returns: true if set subset of given set.

i believe should used "reversed" containsall:

a.containsall(b) true i.f.f. b.subsetof(a) true (not sure how equal sets handled, guess it's fine).

afterthought: noticed how fishy wording in javadoc is. parameter description dependent on output: a superset of set if method returns true. you're not supposed assume on parameter or use conditional it. better wording along lines of: a set checked being superset.


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