Java Buzz Forum - Java Enum ValueOf Example

valueOf Example in Java Enum

valueOf method of Java Enum is used to retrieve Enum constant declared in Enum Type by passing String in other words valueOf method is used to convert String to Enum constants. In this Java Enum valueOf example we will see how to use valueOf method in Java. valueOf method is implicitly available to all Java Enum because every enum in Java implicitly extends java.lang.Enum class. valueOf method of enum accepts exactly same String which is used to declare Enum constant to return that Enum constant. valueOf method is case-sensitive and invalid String will result in IllegalArgumentException. In short String passed to valueOf method of Java enum must be same to String returned by name() method e.g. TrafficSigal.RED.name() returns RED and you should pass RED to valueOf() to get TrafficSignal.RED. This will be more clear will following Java Enum valueOf example. By the way its third tutorial on Enum in Java after previous post on Java Enum Swith Example and Java Enum toString example. If you have not read those tutorial you may find useful.


	Web Artima.com