• 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
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Head First Java Be the Garbage Collector

 
Greenhorn
Posts: 4
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
In the main method, what does GC gc1; do?

In class doStuff2, what does GC localGC do?
 
Bartender
Posts: 3225
34
IntelliJ IDE Oracle Spring Chrome Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Please post the code.
 
David Busby
Greenhorn
Posts: 4
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
 
lowercase baba
Posts: 13089
67
Chrome Java Linux
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
it creates a reference to a GC type of object, although it does not create one. It's like giving you a blank address card, saying "This WILL hold the address to a restaurant, somday"
 
Ranch Hand
Posts: 433
Eclipse IDE Firefox Browser Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi,

If you analyze reference of each object -

gc1 --> null
gc2 --> some object on heap
gc3 --> some object on heap
gc4 --> gc3

gc1 --> reference to object returned by doStuff --> create localGC (--> refer some object on heap) ---> passing same reference to doStuff2 (it does nothing with it) --> return the reference of localGC.
so overall -

gc1 --> refere to same object which localGC was assigned in dostuff method.


Garbage Collector and finalize
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
reply
    Bookmark Topic Watch Topic
  • New Topic