add() - inserts specified enum values to the enum set.

The EnumSet class provides methods that allow us to perform various elements on the enum set. ('EnumSet1: ' + sizes1) ĮnumSet sizes2 = EnumSet.of(Size.SMALL, Size.LARGE) For example, import ĮnumSet sizes1 = EnumSet.of(Size.MEDIUM)

The of() method creates an enum set containing the specified elements. For example, import ĮnumSet sizes = EnumSet.range(Size.MEDIUM, Size.EXTRALARGE) The range() method creates an enum set containing all the values of an enum between e1 and e2 including both values. It's because we created our empty enum set using Size enum. Note: We can only insert elements of enum type Size in the above program.

Here, we have created an empty enum named sizes. For example, import ĮnumSet sizes = EnumSet.noneOf(Size.class) The noneOf() method creates an empty enum set. Here, Size.class denotes the Size enum that we have created. Notice the statement, EnumSet sizes = EnumSet.allOf(Size.class) For example, import ĮnumSet sizes = EnumSet.allOf(Size.class) The allof() method creates an enum set that contains all the values of the specified enum type Size. We must use the predefined methods to create an enum set. Unlike other set implementations, the enum set does not have public constructors. In order to create an enum set, we must import the package first. The EnumSet class of the Java collections framework provides a set implementation of elements of a single enum.īefore you learn about EnumSet, make sure to know about Java Enums.

Kotlin enum class serializable