# Enum (enumeration class)
An **enum** class is a special class used to represent a *group of constants*. 

It can be declared using the `enum` keyword, as shown below:

```java
enum Skill {
    BEGINNER,
    INTERMEDIATE, 
    PROFICIENT,
    EXPERT
}
```

* enum constants are **public**, **static**, and **final** by default.
* enum constants are accessed using dot syntax.
* An enum class can have attributes and methods, in addition to constants.
* You cannot create objects of an enum class, and it cannot extend other classes. 
* An enum class can only implement interfaces.

## Enums in switch case

Enums can be used in a switch-case statement, as shown below: 

public class Main { 
  enum Skill {
    BEGINNER,
    INTERMEDIATE, 
    PROFICIENT,
    EXPERT
  }
  public static void main(String[] args) {
    Skill mySkill = Skill.INTERMEDIATE;
    switch(mySkill) {
      case BEGINNER:
        System.out.println("Beginner");
        break;
      case INTERMEDIATE:
         System.out.println("Intermediate");
        break;
      case PROFICIENT:
        System.out.println("Proficient");
        break;
      case EXPERT:
        System.out.println("Expert");
    }
  }
}

How to use Java enums in switch statements

Java enums represent constants and can be used in switch statements for clean, efficient code.