• 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 Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Ron McLeod
  • Jeanne Boyarsky
  • Tim Cooke
Sheriffs:
  • Liutauras Vilda
  • paul wheaton
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Tim Holloway
  • Stephan van Hulst
  • Carey Brown
  • Frits Walraven
Bartenders:
  • Piet Souris
  • Himai Minh

class.forname...working

 
Greenhorn
Posts: 14
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hey!!
can anybody please explain the actual working of the class.forname() method....esp with reference to the memory.....the concepts....also what happens when i say "class.forname(oracle.jdbc.driver);".....what happens internally
 
Marshal
Posts: 75724
354
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
The JVM (probably a ClassLoader) finds the class of that name and loads a Class<T> object into the memory used by the JVM. In the case of the JDBC connector classes, I believe there is a static initialiser block which initiates the connection to the database.
 
Ranch Hand
Posts: 2458
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Whenever a class gets loaded, all of its static variables get initialized and static initializer blocks get fired. You know, 'static' applies on the class itself and has no instance dependence.
 
Tongue wrestling. It's not what you think. And here, take this tiny ad. You'll need it.
Free, earth friendly heat - from the CodeRanch trailboss
https://www.kickstarter.com/projects/paulwheaton/free-heat
reply
    Bookmark Topic Watch Topic
  • New Topic