ENUMS in Java

Some Important points about Java Enums.

1. Enums can be declared as their own separate class, or as a class member, however they must not be declared within a method.
2. Enums can be declared outside the class.
3. Enums cannot be private or protected.
4. Enums can have only default or public modifier.
5. Semicolon at the end of Enums declaration is optional.
6. Enum is a special type of Class.
7. Enum constructor are never invoked directly
8. Enum constructor can be overloaded just like any other constructor in class.
9. If an enum is declared as public then it should be declared in its own file.
10. Enums declared within a class can have public, private, protected, default, static and abstract modifiers
    

package TechnicalTutorial;

/* Enum declared outside the class can have default access only */

enum TechEnum{
FIRST, SECOND, THIRD
}

public class Example_1 {

public enum TechEnum_2{
HUNDRED, THOUSAND
}

public static void main(String[] args) {
TechEnum num = TechEnum.FIRST;
System.out.println(num);

}
}

In above example enum can be declared as public only within a Class i.e. TechEnum_2 . If an enum need to be declared as public outside the class then it should be created in separate file.