ArrayList Practice

ArrayList Practice

Assessment

Flashcard

Computers

9th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What index value is used to locate the last element in the nums ArrayList?

Back

nums.size()-1

2.

FLASHCARD QUESTION

Front

Which statement below is the correct way to retrieve the first element in the nums ArrayList? Options: nums.get(0), nums[0], nums(0), nums[1]

Back

nums.get(0)

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(1, 5), nums.set(7, 5), nums.set(5, 2), nums[2] = 5

Back

nums.set(1, 5)

4.

FLASHCARD QUESTION

Front

Which statement is the correct declaration and initialization of an ArrayList of String values? Options: ArrayList<String> name; name = new ArrayList<String>();, ArrayList name; name = new ArrayList<String>();, ArrayList<String> name; name = ArrayList<String>();, String<ArrayList> name; name = new String<ArrayList>();

Back

ArrayList<String> name;
name = new ArrayList<String>();

5.

FLASHCARD QUESTION

Front

What is the ArrayList nums if it is initially [5, 3, 1] and the following code is executed?
nums.add(6);
nums.add(0, 4);
nums.remove(1);

Back

[4, 3, 1, 6]

6.

FLASHCARD QUESTION

Front

What index value is used to locate the last element in the nums ArrayList?

Back

nums.size()-1

7.

FLASHCARD QUESTION

Front

What is the ArrayList nums if it is initially [5, 3, 1] and the following code is executed?
nums.add(6);
nums.add(0, 4);
nums.remove(1);

Back

[4, 3, 1, 6]

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