> `EnumSet` is similar to a `Set`, except in the fact that an `EnumSet` only contains the `Enum` type as elements. Additionally, all the elements in an `EnumSet` always come from the same `Enum` type. 


For a detailed review of the`EnumSet` module, please click [here](https://www.educative.io/answers/what-is-an-enumset-in-java).

The `EnumSet.clear()` method can be used to delete all the elements present in the `EnumSet` object. 
# 
#  Syntax

```java
public void clear()
```
# 
## About the method

This method neither takes any arguments nor returns any value(s). It just removes all the memory that is occupied by the elements of a particular `Enumset` object.
##
## Code

import java.util.EnumSet;
class isEmpty {
    enum Size {
        SMALL, MEDIUM, LARGE, EXTRALARGE
    }
    public static void main( String args[] ) {
        EnumSet<Size> set = EnumSet.allOf(Size.class);
        System.out.println("The set is " + set);
        set.clear();
        System.out.println("After using set.clear()\nThe set is " + set);
    }
}

In the above code,

* In line `1`: We import the `EnumSet` class.

* In line `3`: We create an `Enum` with the name `Size`.

* In line `7`: We create a new `EnumSet` object using the `allOf` method. We pass the `Size.class` as an argument to the `allOf` method, which returns an `EnumSet` object containing all the elements of the `Size` Enum.

* In line `9`: We use the `clear` method to delete all the elements present in the `set`, as that will make the `set` empty.

What is the EnumSet.clear method in Java? 

Deletes all elements in an EnumSet, making it empty, with no arguments or return values.