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Can we define an enum inside a method in Java?
Enumerations in Java represents a group of named constants, you can create an enumeration using the following syntax −
enum Days {
SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY
}We can an enumeration inside a class. But, we cannot define an enum inside a method. If you try to do so it generates a compile time error saying “enum types must not be local”.
Example
public class EnumExample{
public void sample() {
enum Vehicles {
Activa125, Activa5G, Access125, Vespa, TVSJupiter;
}
}
}Error
EnumExample.java:3: error: enum types must not be local
enum Vehicles {
^
1 errorTo use the enum constants inside a method declare the required enum inside a class and use its constants inside a method using the values().
Example
public class EnumerationExample {
enum Enum {
Mango, Banana, Orange, Grapes, Thursday, Apple
}
public void testMethod(){
Enum constants[] = Enum.values();
System.out.println("Value of constants: ");
for(Enum d: constants) {
System.out.println(d);
}
}
public static void main(String args[]) {
EnumerationExample obj = new EnumerationExample();
obj.testMethod();
}
}Output
Value of constants: Mango Banana Orange Grapes Thursday Apple
Updated on: 08-Feb-2021
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