Java

TOPIC 47 – ARRAYLISTS

LESSON WORK

QUESTION #1 (SELF-CHECK)

SOLUTIONS

a) False

b) True

c) ArrayList<Integer> frank = new ArrayList<Integer>();

d) ArrayList<Double> coco = new ArrayList<Double>();

e) ArrayList<Point> ali = new ArrayList<Point>();

f) 0

g) 9

h) You will get an Array Out Of Bounds error.

i) System.out.println(al.get(0));

j) al.set(2, 7);

k) int tmp = al.get(2);
al.set(2, al.get(3));
al.set(3, tmp);

l) System.out.println(al.size());

m) al.set(7, al.get(7) * 2);

n) al.set(0, al.get(3) + al.get(4));