searching
collections
■ For Sets use
myset.contains(Obj)
Returns
boolean.
■ For Maps use mymap.containsKey(Obj)
mymap.containsValue(Obj)
Both
return boolean.
■ For Lists, use
mylist.indexOf(Obj)
Returns
index of found Object or –1 if not found.
■ For Vectors use myvector.contains(Obj) or
myvector.containsAll(coll)