补充参考文档

面试必备/最最最常见的Java面试题总结/第一周（2018-8-7）.md

@@ -258,6 +258,16 @@ hashCode() 的作用是获取哈希码，也称为散列码；它实际上是返
 
 
 
+参考：
+
+[https://blog.csdn.net/zhzhao999/article/details/53449504](https://blog.csdn.net/zhzhao999/article/details/53449504)
+
+[https://www.cnblogs.com/skywang12345/p/3324958.html](https://www.cnblogs.com/skywang12345/p/3324958.html)
+
+[https://www.cnblogs.com/skywang12345/p/3324958.html](https://www.cnblogs.com/skywang12345/p/3324958.html)
+
+[https://www.cnblogs.com/Eason-S/p/5524837.html](https://www.cnblogs.com/Eason-S/p/5524837.html)
+