public class Rotator<T> {

    public static void main(String[] args) {
        Integer table[] = new Integer[] {1,11,12,11,8};
        Rotator<Integer> rotator = new Rotator<>(table);
        rotator.rotate(3);
        for(Integer i : rotator.tablica) {
            System.out.print(i + " ");
        }
    }

    public T[] tablica;
    public Rotator(T tablica[]) {
        this.tablica=tablica;
    }
    public void rotate(int a) {
        a=a%tablica.length;
        if(a<0)
            throw new IllegalArgumentException("Nie mozna rotowac w lewo");
        else if(a>0)
            rotateRight(a);
    }
    private void rotateRight(int n) {
        while (n > 0) {
            T last = tablica[tablica.length-1];
            for(int i=tablica.length - 1; i>0; i--) {
                tablica[i]=tablica[i - 1];
            }
            tablica[0]=last;
            n--;
        }
    }
}