Question 1 Consider these two ArrayList declarations: ArrayList list1 = new Arra

Question 1: 3) Question 2: 2) Question 3: 2)

ID: 3568543 • Letter: Q

Question

Question 1

Consider these two ArrayList declarations:

ArrayList list1 = new ArrayList();

ArrayList<String> list2 = new ArrayList<String>();

Which of the following is a true statement?

1) list1 can hold items of any non-primitive type.

2) list2 can hold only String items

3) both A and B are true

4) none of the above are true

Question 2

Integer as used in the declaration below refers to a __________ type.

ArrayList<Integer> myList = new ArrayList<Integer>();

1) primitive

2) wrapper

3) floating-point

4) unboxed

Question 3

Which of the following code segments prints each item in an ArrayList of Strings? Assume the name of the ArrayList is namesList.

1) for (String name : namesList)

System.out.println(name);

2) for (int i=0; i<namesList.size(); i++)

System.out.println(namesList.get(i));

3) System.out.println(namesList);

4) All of the above.

Question 1:

Question 2:

Question 3:

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