• 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
  • Tim Cooke
  • paul wheaton
  • Ron McLeod
  • Jeanne Boyarsky
Sheriffs:
  • Paul Clapham
Saloon Keepers:
  • Tim Holloway
  • Roland Mueller
Bartenders:

Collections mock question

 
Ranch Hand
Posts: 186
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator


why would line 10 generate compatible error?!
 
Greenhorn
Posts: 14
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
hi,

here you are trying to retrieve the list objects from the arraylist, that is not right, you are retrieving objects from the list,

so modify the line 10 as given below,

for (Object obj:getList()) //line 10
System.out.println(obj);
}
 
adam Lui
Ranch Hand
Posts: 186
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
so we use ....
for (Object obj: getlist())

wat about ...
for (ArrayList obj: getList())

possible?
 
Ranch Hand
Posts: 60
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
it's possible if for example your getList() method returns a "List of ArrayList"


but this is not your case..
[ October 21, 2007: Message edited by: al nik ]
 
It looks like it's time for me to write you a reality check! Or maybe a tiny ad!
Clean our rivers and oceans from home
https://www.kickstarter.com/projects/paulwheaton/willow-feeders
reply
    Bookmark Topic Watch Topic
  • New Topic