Java Markup Interface

An interface that does not declare or define a method is called a markup interface (Mark Interface). When a class implements this interface, it does not need to override the method to indicate the functionality that has interface tags. The 3 tag interfaces commonly used in Java are as follows:

1 Serializable

The Java.io.Serializable interface is used to mark whether a class supports serialization. Serialization refers to converting a Java object into a binary byte code. If a class does not implement the interface and the class instance performs a serialization operation, the JVM throws a Notserializableexception exception.

2 cloneable

The Cloneable interface is used to mark whether a class supports cloning. If a class does not implement the interface and the class instance performs a clone operation, the JVM throws a Clonenotsupportedexception exception.

3 randomaccess

The Randomaccess interface is used to mark whether a class supports random access.

Resources

Internal organs Heart--Java Tag interface

In-depth learning of Java serialization

"Java Programmer interview written book" P54-56

Java Markup Interface