OnJava8-Examples/enums/UpcastEnum.java
2016-12-30 17:23:13 -08:00

22 lines
559 B
Java

// enums/UpcastEnum.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// No values() method if you upcast an enum
enum Search { HITHER, YON }
public class UpcastEnum {
public static void main(String[] args) {
Search[] vals = Search.values();
Enum e = Search.HITHER; // Upcast
// e.values(); // No values() in Enum
for(Enum en : e.getClass().getEnumConstants())
System.out.println(en);
}
}
/* Output:
HITHER
YON
*/