title: Something like 'contains any' for Java set?
body: <p>I have two sets, A and B, of the same type.</p>
  
  <p>I have to find if A contains any element from the set B.</p>
  
  <p>What would be the best way to do that without iterating over the sets?
  The Set library has <code>contains(object)</code> and <code>containsAll(collection)</code>, but not <code>containsAny(collection)</code>.</p>