final int NUM = 2;
		int[] x = {1, 1};

		for (int i=0; i<NUM; i++) {
			x[i] = inx(i);
		}

		System.out.printf("%d + %d => %d%n", x[0],x[1],sum(x[0],x[1]));
		System.out.printf("%d - %d => %d%n", x[0],x[1],diff(x[0],x[1]));
		System.out.printf("%d * %d => %d%n", x[0],x[1],prod(x[0],x[1]));
		System.out.printf("%d / %d => %d%n", x[0],x[1],quot(x[0],x[1]));
		System.out.printf("%d %% %d => %d%n", x[0],x[1],rem(x[0],x[1]));