MCQ Tutorial - JAVA->Collection

16.) What is Collection in Java?

Options are:

A.) A group of objects

B.) A group of interfaces

C.) A group of data types

D.) A group of classes

17.) Which of these methods deletes all the elements from invoking collection?

Options are:

A.) delete()

B.) clear()

C.) refresh()

D.) reset()

18.) Which of these interface is not a part of Java’s collection framework?

Options are:

A.) List

B.) SortedList

C.) Set

D.) SortedMap

19.) Which of these classes is not part of Java’s collection framework?

Options are:

A.) Stack

B.) Map

C.) Array

D.) Queue

20.) Which of these packages contain all the collection classes?

Options are:

A.) java.awt

B.) java.net

C.) java.util

D.) java.lang

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