How to create empty EnumSet?

JavaEnumset

Java Problem Overview

I am struggling with EnumSet as it surprisingly doesn't have a simple constructor and its methods doesn't like null values.

What I came up with: EnumSet<MyClass> x = EnumSet.copyOf(Collections.<MyClass>emptySet());

Which somewhat works but doesn't seem right to me.

Java Solutions

Solution 1 - Java

Use the method EnumSet.noneOf:

EnumSet<MyClass> x = EnumSet.noneOf(MyClass.class);

Solution 2 - Java

Use EnumSet.noneOf(Class) to create an empty EnumSet.

Categories
Recommended Java Solutions

Previous Solution:

Pyspark: Parse a column of json strings

PythonJsonApache SparkPyspark

Next Solution:

Junit @Rule and @ClassRule

JavaJunitRule

Attributions

All content for this solution is sourced from the original question on Stackoverflow.

The content on this page is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionDavid162795View Question on Stackoverflow
Solution 1 - JavaJesperView Answer on Stackoverflow
Solution 2 - JavaFabian BarneyView Answer on Stackoverflow