File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Another garbage collection! Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Java Interview Guide this week in the Jobs Discussion forum!
JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
Bookmark "Another garbage collection!" Watch "Another garbage collection!" New topic

Another garbage collection!

Ranch Hand

Joined: Sep 14, 2000
Posts: 30
Is the statement true or false?
Garbage Collection feature of Java ensures that the program never runs out of memory.
I think it is right. But the answer shows me that is wrong.
Paul Anilprem
Enthuware Software Support
Ranch Hand

Joined: Sep 23, 2000
Posts: 3636
No system in this world can ensure that the porgram will never run out of memory!!! Memory is always limited.
This is what happened with us in a project that I worked on. We did not know that the GC never collects the Strings. We were creating huge XML String messages in our application and every 2-3 hr we were running out of memory. That's when we realized our fault and changed our program to use StringBuffers instead.
Anyway, the answer to you question is, if you create huge objects and don't release their references, you'll run out of memory for sure. No GC can fix that.
Get Certified, Guaranteed!

Enthuware - Best Mock Exams and Questions for Oracle Java Certifications
Quality Guaranteed - Pass or Full Refund!
I agree. Here's the link:
subject: Another garbage collection!
jQuery in Action, 3rd edition