Java ArrayLists

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]

Front

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

Back

nums.size()-1

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)

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)

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(2), nums.remove(3), nums.get(2) = null, nums.remove(1)

Back

nums.remove(2)

Front

Given the nums ArrayList with the values [1, 2, 3, 4, 6], what code can be used to add a 5 between the 4 and 6 in the list? Options: nums.add(4, 5), nums.add(5, 4), nums.add(5, 5), nums.add(5)

Back

nums.add(4, 5)

Front

What will print when the following code executes?
ArrayList<Integer> list = new ArrayList<Integer>();
list.add(7);
list.add(8);
list.add(9);
System.out.println(list.remove(0));

Back

7

Front

What is printed?
ArrayList<Integer> alist;
alist = new ArrayList<Integer>();
alist.add(1);
alist.add(2);
alist.remove(1);
alist.add(1, 3);
alist.set(1, 4);
alist.add(5);
System.out.println(alist);

Back

[1, 4, 5]

Front

What is printed?
ArrayList<Double> vals;
vals = new ArrayList<Double>();
vals.add(3.5);
vals.add(4.5);
vals.add(5.5);
vals.set(0, 2.5) ;
System.out.println(vals);

Back

[2.5, 4.5, 5.5]

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>();