PreTrainingCollectionsArrays
Quiz
•
Computers, Professional Development
•
Professional Development
•
Practice Problem
•
Medium
Keven N Mitchell
Used 22+ times
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9 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Which of the following is a difference between an Array and an ArrayList?
Arrays can change in size
ArrayLists can store primitive values
Arrays are not a class in the collections Framework
ArrayLists can be created with an array literal
2.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
How do we retrieve an element at a particular index from an ArrayList?
using square brackets
using the find method
using the get method
using the pop method
3.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
True/False: collections can contain primitive variables
True
False
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the following is true for a HashMap?
HashMaps can be used in a for-each loop
HashMaps can store duplicate keys
HashMaps store entries in Key,Value pairs
HashMaps can store primitive values
5.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Queues store values in __in, __out order
Last, First
First, Last
First, First
6.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Stacks store values in __in, __out order
Last, Last
First, First
Last, First
7.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
To pull an element from a queue and reduce the size by 1, we use the ____ method
find
push
poll
get
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