Update hashmap.md

lightningtgc · lightningtgc · commit ed466ef23fcf · 2015-07-17T09:11:25.000+08:00
diff --git a/note/hashmap.md b/note/hashmap.md
@@ -1 +1,3 @@
 [原理](http://www.importnew.com/16301.html)
+
+[Java函数](http://docs.oracle.com/javase/7/docs/api/java/util/HashMap.html)

Original file line number	Diff line number	Diff line change
`@@ -1 +1,3 @@`
`1`	`1`	`[原理](http://www.importnew.com/16301.html)`
	`2`	`+`
	`3`	`+[Java函数](http://docs.oracle.com/javase/7/docs/api/java/util/HashMap.html)`