This week's book giveaways are in the Angular and TypeScript and Web Services forums.
We're giving away four copies each of Programming with Types and The Design of Web APIs and have the authors on-line!
See this thread and this one for details.
Win a copy of Programming with Types this week in the Angular and TypeScript forum
or The Design of Web APIs in the Web Services forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Bear Bibeault
  • Paul Clapham
  • Jeanne Boyarsky
Sheriffs:
  • Junilu Lacar
  • Knute Snortum
  • Henry Wong
Saloon Keepers:
  • Ron McLeod
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
Bartenders:
  • Frits Walraven
  • Joe Ess
  • salvin francis

Some basic questions

 
Greenhorn
Posts: 19
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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?
 
Ranch Hand
Posts: 142
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
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-
 
If somebody says you look familiar, tell them you are in porn. Or in these tiny ads:
Sauce Labs - World's Largest Continuous Testing Cloud for Websites and Mobile Apps
https://coderanch.com/t/722574/Sauce-Labs-World-Largest-Continuous
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!