The following code repository demonstrates how a Java Enum implementation can be used to model a State Machine. The demo code uses the Reservation Status enumeration to emulate how a Java Enum class ...

Java can implement the interface fine, so it's some kind of interaction between Kotlin and Scala here. Best theory I have is that acceptAction (action: ClosingAction): Boolean breaks it somehow, ...

JPA and Hibernate enum mapping The Java enum, introduced in Java 5, will map to the underlying database without any intervention. The JPA framework, be it Hibernate or Toplink or DataNucleus, will ...

To serialize and deserialize enums in Java, ensure the enum class implements the Serializable interface. Use the default serialization mechanism provided by ObjectOutputStream and ObjectInputStream.

Although it is part of the java.util.concurrent package, the TimeUnit enum is useful in many contexts outside of concurrency .

For example, suppose I had a custom enum called Fruit and I tried to compare it to the class java.awt.Color.