@@ -0,0 +1,249 @@
+public class Solution %7B%0A    // you need to treat n as an unsigned value%0A    public int hammingWeight(int n) %7B%0A        int count = 0;%0A%0A        while (n != 0) %7B%0A            n = n & (n - 1);%0A            count++;%0A        %7D%0A%0A        return count;%0A    %7D%0A%7D

add LCOF15