why marker interfaces are there in java
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Answer Posted / maurya
an interface without any method is known as marker
interface. we use marker interface to actually mark for JVM
to distinguish that the class is belongs or subclass of ant
particular super class.
EX-->
we have an interface named serializable. there is a
condition that if you want to serialize your object u must
have to implements marker interface.
by doing this we just only inform JVM that my class is able
to be serialized. JVM detact it at run time by using Class
class methods.
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