Method concat

src/main/java/Start.java:10–14

(T[] first, T[] second)

    }

    public static <T> T[] concat(T[] first, T[] second) {
        T[] result = Arrays.copyOf(first, first.length + second.length);
        System.arraycopy(second, 0, result, first.length, second.length);
        return result;
    }
}