adspace


Hi can u pls tell me what is the use of marker interface.
Iknow what is marker interface but what ability will the
object get by implementing this.

Answer Posted / guest

Marker interface plays vital role even though it doesn't
contain any methods.The main purpose is to identify the
special objects from normal objects for example if you want
to serialize an object then how you will inform to the JVM
to serialize the particular object because there may be so
many objects available in JVM. In order to know which object
is to be serialized marker interfaces are used. When you
implement a marker interface the object will be tagged with
boolean property with that property JVM knows which object
should be serialized and which object should not be serialized.

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is a constructor overloading in java?

1125


How to create a base64 decoder in java8?

1138


What is java string pool?

1081


What do you mean by an interface in java?

1102


Differentiate between static and non-static methods in java.

1127


Write a program to find the whether a number is an Armstrong number or not?

1098


What is the difference between equals() and == in java?

1039


Realized?

2261


What are the differences between heap and stack memory in java?

1139


Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2664


What is an object in java and how is it created?

1140


How to sort array in descending order in java?

995


Explain public static void main(string args[]) in java.

1076


explain different ways of using thread? : Java thread

1081


What is the difference between break and continue statements?

1127