Q) What is object? java.lang.Object? A) Object is the root superclass by default. Q) where is size() method located? I cannot find it in the doc? A) java.util.Vector Q) why it does not need to pass obj - "new String(s)"? Is s an object already? A) It is an object reference.
posted 15 years ago
Thanks and I've got other answers from the API. Andrew