Unit 2 Quiz

Question 1

The length() method is used to check the size of a stack?

True or False

Answer 1

False

Question 2

Which methods are used to add and remove items from a stack?

Answer 2

Push, pop

Question 3

Which statement would properly add an element to an ArrayList called colors?

Answer 3

colors.add(“blue”);

Question 4

Which methods are used to add and remove items from a Linked List?

Answer 4

add, remove

Question 5

Which import statement should be used when using Array Lists?

Answer 5

import.java.util.ArrayList;

Question 6

Which method below is NOT a member of the ArrayList class?

Answer 6

length()

Question 7

The ArrayList, LinkedList, ArrayDeque classes and the List, queue, and Deque interfaces are part of which larger Java APT body?

Answer 7

Java Collections Framework

Question 8

Which statement would access the 3rd element in an ArrayList called colors?

Answer 8

colors.get(2);

Question 9

A Queue uses LIFO?

True or False

Answer 9

False, it uses FIFO

Question 10

A Stack uses LIFO?

True or False?

Answer 10

True