Performance: Creating an ArrayList from HashMap.values()

Question

Question is how much it costs to create an ArrayList from a HashMap.values() Collection? Or creating the values Collection alone? Assuming Map.size() > 100k. Objects could also

Answer 1

To elaborate on @Bozho's solution you can just do.

int count = 0;
for(Value value: map.values())
   if(count++ % 5 == 0)
     // do something.