When there is nothing to implement in the marker interfaces like Serializable What is the use of implementing it?
When there is nothing to implement in the marker interfaces like Serializable What is
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When there is nothing to implement in the marker interfaces like Serializable What is the use of implementing it?
In earlier versions of Java, Marker Interfaces were the only way to declare metadata about a class. For example, the Serializable Marker Interface lets the author of a class say that their class will behave correctly when serialized and deserialized.
In modern Java, marker interfaces have no place. They can be completely replaced by Annotations, which allow for a very flexible metadata capability. If you have information about a class, and that information never changes, then annotations are a very useful way to represent it.