Whichinterfaceprovidestheabilitytoseechangesinreal－timeastheyoccur?() A.ConcurrentMapB.java.util.AbstractMapC.ObservableMapD.InvocableMap
Whichinterfaceprovidestheabilitytoseechangesinreal－timeastheyoccur?()
A.ConcurrentMap
B.java.util.AbstractMap
C.ObservableMap
D.InvocableMap