public class EqualSumChecker {
    public static void main(String[] args) {
        System.out.println(hasEqualSum(1, 1, 1));
        System.out.println(hasEqualSum(1, 1, 2));
        System.out.println(hasEqualSum(-1, 1, 0));
        }
    public static boolean hasEqualSum( int a, int b, int c) {
        System.out.printf(a + " + " + b + " = " + c + " is ");
        return ( a + b == c);
        }
}