what is singleton class? where it mainly used in the
projects?
- 5 Answers
- 18427 Views
- Satyam, Wipro, I also Faced
- E-Mail Answers
Answer Posted / suresh jv
Singleton class is a class, it allows jvm to create only one
object.
note:
most of the people think that servlet is a singleton class.
but it is not a singleton class. Actually for each servlet
one object will be created by container.
But suppose if u want to create another object for same
servlet, that servlet allows us to create another object but
the container (server) will not allow to create second object.
When a huge amount of requests coming to servlet, some of
the servers (espcially weblogic)allows to create second
object for same servlet to handle huge amount of requests,
then how can u say servlet is a singleton class.
"The class, itself doesn't allow to create second object "
is called singleton class.
this helps a lot u.....
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Should synchronization primitives be used on bean methods?
Why do threads block on i/o?
Why use a datasource when you can directly specify a connection details? (in a J2EE application)
how to use debug in my elipse to solve problems that exist in my project
What is the difference between session and entity beans?
If your ui seems to freeze periodically, what might be a likely reason?
What class is the top of the awt event hierarchy?
why static class in java
What is the difference between the session.get() method and the session.load() method?
what is an isolation level?
Which component handles cluster communication in jboss?
Can I run seam outside of jboss as?
Why is string immutable in java?
Why doesn’t the focus feature on the tag work in every circumstance?
If we opened Windows Internet Explorer 4 times, does it starts 4 processes or 4 threads?
