找出只出现一次的数字,其余数字出现了k次 Java

public class Main {
    public static void main(String[] args){
        int[] nums = new int[]{3,3,3,3,3,1,5,5,5,5,5,6,6,6,6,6};
        int k = 5;
        int ans = 0;
        for(int i = 0;i<32;i++){
            int total = 0;
            for(int num : nums){
                total += ((num >> i) & 1);
            }
            if(total % k != 0){
                ans |= (1 << i);
            }
        }
        System.out.println(ans);
    }
}