There is typo the question is , What is Marker Interface and where it can be used?

Hi Friend,

An interface with no method is known as Marker Interface.

Here is an example:

interface markerImp {
}

class MarkerTest implements markerImp{
}

public class TestInstanceOf {
public static void main(String []args){
MarkerTest mt = new MarkerTest();
if(mt instanceof markerImp){
System.out.println("True");
}
else{
System.out.println("False");
}
}
}

For more information, visit the following link:

Learn Interface

Thanks