How to get all enum values in Java

Question

I came across this problem that I without knowing the actual enum type I need to iterate its possible values   if  value instanceof Enum      Enum enumValue    Enum value      Any ideas how to extract from enumValue its possible values

User · Accepted Answer

Object   possibleValues   enumValue getDeclaringClass   getEnumConstants

User · Answer

Here  Role is an enum which contains the following values  ADMIN  USER  OTHER    List lt Role gt  roleList   Arrays asList Role values     roleList forEach role - gt        System out println role

User · Answer

One can also use the java util EnumSet like this       Test void test        Enum aEnum  DayOfWeek MONDAY      printAll aEnum      void printAll Enum value       Set allValues   EnumSet allOf value getClass         System out println allValues

User · Answer

values method of enum  enum values   method which returns all enum instances     public class EnumTest           private enum Currency           PENNY  1 rs    NICKLE  5 rs    DIME  10 rs    QUARTER  25 rs            private String value          private Currency String brand                  this value   brand                      Override         public String toString                   return value                   public static void main String args               Currency   currencies   Currency values                enum name using name method            enum to String using toString   method         for  Currency currency   currencies                  System out printf    Currency    s                           Value    s   n  currency name   currency                     http   javaexplorer03 blogspot in 2015 10 name-and-values-method-of-enum html

User · Answer

or MyEnum values     Or am I missing something

User · Answer

Enums are just like Classes in that they are typed  Your current code just checks if it is an Enum without specifying what type of Enum it is a part of   Because you haven t specified the type of the enum  you will have to use reflection to find out what the list of enum values is   You can do it like so   enumValue getDeclaringClass   getEnumConstants      This will return an array of Enum objects  with each being one of the available options

User · Answer

YourEnumClass   yourEnums   YourEnumClass class getEnumConstants      Or  YourEnumClass   yourEnums   YourEnumClass values

[java] How to get all enum values in Java?

Examples related to java

Examples related to enums