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PreTrainingCollectionsArrays

Authored by Keven N Mitchell

Computers, Professional Development

Professional Development

Used 22+ times

PreTrainingCollectionsArrays
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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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