my dog learned polymorphism
The moose likes Beginning Java and the fly likes Lock on Objects Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Beginning Java
Reply locked New topic

Lock on Objects

Seth Anshul

Joined: May 02, 2006
Posts: 16
Why does each Object in Java has a corresponding lock?
What is the utility of having such a functionality.
Amit Y Desai
Ranch Hand

Joined: Dec 06, 2007
Posts: 35
Well..locks are used to obtain lock on any object.As simple as that...

seee when multiple threads are working on a single object and you want to synchronize then each thread should obtain lock on object before operating...
it is same as monitor concept in operating systems...
Ulf Dittmer

Joined: Mar 22, 2005
Posts: 42965

please don't post the same question multiple times. If you need to edit a post, click the little paper-and-pencil icon ().

Let's continue the discussion in this duplicate post.
I agree. Here's the link:
subject: Lock on Objects
It's not a secret anymore!