Some basic questions

[sowmya thiru]

Some basic questions
1. In a JVM, there can be many classloaders correct? like EJB ClassLoader, WebApp Classloader
2. Call between one classloader and another classloader within JVM - is it pass by value or pass by reference?
3. Singleton class is per classloader? or per JVM?

[Sridhar Raman]

Hi Sowmya,

1. Yes, a JVM can have many class loaders. Check out the following link for additional info.
http://www.artima.com/underthehood/classloaders.html

2. Not a clue
3. We refer to Singleton objects are for an application. We can't speak of them in reference to JVMs or Class Loaders. For example, I could have a Singleton object( say running as a SOAP Service ) that accepts requests from a different physical server than the client.

Sridhar-