Win a copy of TDD for a Shopping Website LiveProject this week in the Testing 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 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

StackOverflowError

 
Greenhorn
Posts: 3
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I have a program that I am writing that allows me to enter and display data for a group of sales representatives. The program compiles, but when I attempt to enter the name of a representative, I receive a StackOverflowError. What could be causing this?
 
author
Posts: 4323
39
jQuery Eclipse IDE Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Please post some sample code.

Wild guess is that you have an infinite loop.
 
Matthew Gates
Greenhorn
Posts: 3
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator


[ EJFH: Added code tags to preserve formatting. ]
[ November 11, 2005: Message edited by: Ernest Friedman-Hill ]
 
Scott Selikoff
author
Posts: 4323
39
jQuery Eclipse IDE Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
see anything wrong with this...

[ November 11, 2005: Message edited by: Scott Selikoff ]
 
Scott Selikoff
author
Posts: 4323
39
jQuery Eclipse IDE Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
BTW, as a suggestion for debugging, I just started up Eclipse, created the class from your posted code, added a breakpoint before it asked for the representative name, then started the program in debugging mode...

after that finding where the infinite loop was trivial.
 
author and iconoclast
Posts: 24204
44
Mac OS X Eclipse IDE Chrome
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Both these routines call themselves, passing their same arguments to the new call:



When findRep(String) calls findRep(String), that second call will call findRep(String) which will call findRep(String)... eventually, the JVM will run out of stack space to keep track of all those calls that haven't returned yet, and you'll get a StackOverflowException.

Both versions of findRep need to be implemented in terms of the ArrayList, not in terms of recursive calls.

 
Try 100 things. 2 will work out, but you will never know in advance which 2. This tiny ad might be one:
Free, earth friendly heat - from the CodeRanch trailboss
https://www.kickstarter.com/projects/paulwheaton/free-heat
reply
    Bookmark Topic Watch Topic
  • New Topic