what is marker interface ? what is the necessity of it?
Answers were Sorted based on User's Feedback
Answer / sandeep
An interface that contains no methods. Eg: Serializable,
Cloneable, SingleThreadModel etc. It is used to just mark
java classes that support certain capability.
| Is This Answer Correct ? | 24 Yes | 3 No |
Answer / ganesh reddy
markble interface does not contains any methods,but
implementing of these interfaces will be recognise by Jvm
then it will decide that "this class is going do
something".for example for cloneable interface implements
by some class x which consists of a,b variable ,But I need
to interchange instance variables a to b and b to a (pass
by value)of class x and i want again the same values for a
and b.At this situations we can implement cloneable
interface.Like this markble interface are very useful as my
knowledge........
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / tulasi prasad
this is one type on null interface, it doesn't contain any
methods
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / prasanna sahu, munnekolal
Marker interface is an interface which gives a mark to the
runtime environment. This gives a mark that "I am going to
happen". It contains no methods.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / javaexp
<a
href="http://www.javaexperience.com/java-marker-interfaces/">Marker
interfaces in Java</a> are used for marking a specific
behavior and we can only simulate the behavior by writing
custom interfaces without any methods and having
implementing them by other classes.
| Is This Answer Correct ? | 0 Yes | 0 No |
How do listeners work?
Explain different types of thread priorities ?
What is the purpose of the finally clause of a try-catch-finally statement in java programming?
Explain spliterator in java8?
what are the differences between java and .net?..why u choose java?
I dont want to use serialzable in java is there any another concept so plz tell me
In multi-threading how can we ensure that a resource isn't used by multiple threads simultaneously?
What is the use of anonymous inner classes ?
What are the benefits of operations in java?
Define an applet in java?
what is java
Whats the difference between notify() and notifyall()?