CSA Unit 7 Test
Authored by Kevin Kamrath
Computers
9th Grade
Used 5+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the proper way to get the number of items in an ArrayList called list?
list.length
list.size
list.length()
list.size()
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will the following code print?
Hello
World
list[0]
There will be a compiler error
None of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is wrong with the following code?
It will throw an IndexOutOfBoundsException.
You cannot use int as the type in an ArrayList.
list is a reserved word, so you can’t call the variable that.
You need to define the new ArrayList on a new line of code.
Nothing. The above code is correct.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will the following code print?
0
5
6
9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will the following code print?
3
coding
in
Java
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Consider the following statement:
I
II
III
None
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would the proper initialization and declaration be for an ArrayList myTemps meant to store precise temperature measurements?
ArrayList<double> myTemps = new ArrayList<double>();
ArrayList<Double> myTemps = new ArrayList<Double>();
ArrayList<Integer> myTemps = new ArrayList<Integer>();
ArrayList<double> myTemps = ArrayList<double>();
ArrayList<Double> myTemps = ArrayList<Double>();
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