CS 3 Midterm 2023
Flashcard
•
Computers
•
12th Grade
•
Practice Problem
•
Hard
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32 questions
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1.
FLASHCARD QUESTION
Front
Which statement is a correct declaration and initialization of an ArrayList of String values? Options: ArrayList <String> name; name = new ArrayList<String>();, String name; name = new String<ArrayList>();, ArrayList <String> name; name = ArrayList<String>();, ArrayList name; name = new ArrayList<String>();
Back
ArrayList <String> name; name = new ArrayList<String>();
2.
FLASHCARD QUESTION
Front
Given the nums ArrayList with the values [5, 4, 3, 2], what statement below removes the value 3 from the list? Options: nums.remove(1), nums.get(2) = null, nums.remove(2), nums.remove(3)
Back
nums.remove(2)
3.
FLASHCARD QUESTION
Front
Given the ArrayList nums with the values [3, 7, 6, 0], what code below is the proper way to change the 7 to be a 5? Options: nums.set(7, 5), nums.set(7, 5), nums[2] = 5, nums.set(1, 5)
Back
nums.set(1, 5)
4.
FLASHCARD QUESTION
Front
What index value is used to locate the last element in the nums ArrayList? Options: nums.length, nums.size()-1, nums.size(), nums.length()-1
Back
nums.size()-1
5.
FLASHCARD QUESTION
Front
The ArrayList class ____ method returns the current ArrayList size.
Back
size
6.
FLASHCARD QUESTION
Front
What is the output? Options: 15, 5, 9, 11, 7
Back
5
7.
FLASHCARD QUESTION
Front
What is the output?
Back
10
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