STM32L475VG Светодиодный контроль

public static void main(String[] args)  {
    int arr[] = {6,1,37,-4,12,46,5,64,21,2,-4,-3};
    int lowest =arr[0];
    int sec_lowest =arr[0];
    for(int n : arr){
        if (lowest >  n)
        {
            sec_lowest = lowest;
            lowest = n;

        }
        else if (sec_lowest > n && lowest != n)
            sec_lowest = n;
    }

    System.out.println(lowest+"   "+sec_lowest);

    }