Question

I have two arraylists: a1 = {1, 0, 0, 1, 0, 0,} and a2 = {0, 1, 1, 0, 0, 0}. I need to compare the elements of both the arraylists so I can come up with a3 = {1, 1, 1, 1, 0, 0}.

a3 is based on the Logical disjunction operation where it produces a value of true if at least one of its operands is true.

need help here…

Answer 1

Probably there could be better solutions, but the following should work for you:

public static void main(String[] args) {
        Integer[] a = new Integer[] { 1, 0, 0, 1, 0, 0 };
        List<Integer> a1 = Arrays.asList(a);
        Integer[] b = new Integer[] { 0, 1, 1, 0, 0, 0 };
        List<Integer> a2 = Arrays.asList(b);
        List<Integer> a3 = new ArrayList();
        for (int i = 0; i < a1.size(); i++) {
            a3.add(a1.get(i) | a2.get(i));
            System.out.print(a3.get(i));
        }
    }

Output:

111100