Q: 1.

Which of the following correctly declares an ArrayList? (3 points)

I. ArrayList aList = new ArrayList ();

II. ArrayList aList = new ArrayList (10);

III. ArrayList = new ArrayList(10);

1) I only 2) II only 3) III only 4) I and II only 5) II and III only

2.

Which of the following correctly declares an ArrayList? (3 points)

I. ArrayList aList = new ArrayList ();

II. ArrayList = new ArrayList(10);

III. ArrayList aList = new ArrayList(10);

1) I only 2) II only 3) III only 4) I and II only 5) I and III only

3.

Assume aList is a valid ArrayList containing the following string values:

apple, orange, grape, kiwi, watermelon, peach, banana

When the following statement executes, what does aList contain? (3 points)

aList.set(3, "lemon");

1) apple, orange, grape, kiwi, lemon, peach, banana 2) apple, orange, grape, lemon, watermelon, peach, banana 3) apple, orange, grape, kiwi, lemon, watermelon, peach, banana 4) apple, orange, lemon, grape, kiwi, watermelon, peach, banana 5) apple, orange, grape, kiwi, watermelon, peach, banana, lemon, lemon, lemon

4.

Assume aList is a valid ArrayList containing the following string values:

apple, orange, grape, kiwi, watermelon, peach, banana

When the following statement executes, what does aList contain? (3 points)

aList.set(1, "raspberry");

1) apple, orange, grape, kiwi, watermelon, peach, banana 2) apple, raspberry, grape, kiwi, watermelon, peach, banana 3) apple, raspberry, orange, grape, watermelon, peach, banana 4) raspberry, orange, grape, kiwi, watermelon, peach, banana 5) raspberry, apple, orange, grape, kiwi, watermelon, peach, banana

5.

Assume aList is a valid ArrayList containing the following values:

3, 95, 86, 11, 18, 42, 73

Which of the following places 55 immediately before 42 in aList? (3 points)

1) aList.add(55); 2) aList.add(5, 55); 3) aList.add(6, 55); 4) aList.add(42, 55); 5) aList.add(55, 6);

6.

Assume aList is a valid ArrayList containing the following:

purple, red, blue, yellow, green, pink, black, gold

Which of the following removes blue from aList? (3 points)

I. aList.remove(2, "blue");

II. aList.remove("blue");

III. aList.remove("blue", 2);

1) I only 2) II only 3) III only 4) I and II only 5) II and III only

7.

Assume aList is a valid ArrayList containing the following:

purple, red, blue, yellow, green, pink, black, gold

Which of the following removes yellow from aList? (3 points)

I. aList.remove(3);

II. aList.remove("yellow");

III. aList.remove(3, "yellow");

1) I only 2) I and II only 3) I and III only 4) II and III only 5) I, II, and III

8.

What is the size of the ArrayList aList after the following code segment is executed? (3 points)

ArrayList aList = new ArrayList (3); aList.add(3.5); aList.add(4.3); aList.set(1, 12.3); aList.add(1, 18.9); aList.remove(2); aList.set(0, 20.3); aList.add(24.8);

1) 3 2) 5 3) 6 4) 7 5) An IndexOutOfBoundsException error occurs

9.

What is the size of the ArrayList aList after the following code segment is executed? (3 points)

ArrayList aList = new ArrayList (3); aList.add(3.5); aList.add(4.3); aList.add(1, 12.3); aList.set(2, 18.9); aList.remove(1); aList.set(0, 20.3); aList.remove(1); aList.add(24.8);

1) 0 2) 1 3) 2 4) 4 5) An IndexOutOfBoundsException error occurs