Create onvert-a-string-to-an-enum-in-java.md

tangculijier · tangculijier · commit c2237304d294 · 2016-05-03T23:36:30.000+08:00
diff --git a/contents/onvert-a-string-to-an-enum-in-java.md b/contents/onvert-a-string-to-an-enum-in-java.md
@@ -0,0 +1,30 @@
+##在java中把String转换给enum类  
+-------------------------------------
+
+###问题  
+假设有有个枚举类:
+```java
+public enum Blah 
+{
+    A, B, C, D
+}
+```
+现在我想把这个String转成枚举类,比如说"A"应该等于Blash.A.该怎么做？
+
+------
+###回答1
+```java
+Blah A = Blah.valueOf("A");
+```
+这样传入"A"会返回Balsh枚举类.
+###回答2
+```java
+Blah A =Enum.valueOf(Blah.class, "A");
+```
+同样可以得到该枚举类
+
+**这两个方法都会传入的参数大小写敏感，这个例子如果传入"a"，则会报错No enum const class Blah.a.**
+
+stackoverflow原址： http://stackoverflow.com/questions/604424/convert-a-string-to-an-enum-in-java
+
+
