diff --git a/src/leetcodejava/array/BitCount.java b/src/leetcodejava/array/BitCount.java
index b69132b..77653de 100644
--- a/src/leetcodejava/array/BitCount.java
+++ b/src/leetcodejava/array/BitCount.java
@@ -26,7 +26,7 @@ public void bitCountTest() {
     private int bitCountStatistic(int num) {
         int result = 0;
         while (num > 0) {
-            result ^= (num & 1);
+            result += (num & 1);
             num = num >> 1;
         }
         return result;