public class PlusAndMinus { public static void main(String[] args) { int zebrasInZoo = 8; int giraffesInZoo = 4; int animalsInZoo = zebrasInZoo + giraffesInZoo; System.out.println(animalsInZoo); int numZebrasAfterTrade = zebrasInZoo - 2; System.out.println(numZebrasAfterTrade); } }