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Array list and Iterator

jin kazama
Greenhorn

Joined: Mar 09, 2010
Posts: 7
Good evening, can I ask for some guidance with an issue I have with a small program?

I am having problems with a couple of classes using an ArrayList and an Iterator with a scanner reading in a file. When the file has been read in and another class attempts to return the elements in the Iterator, it only reports back every other entry from the file. So the file File1.txt contains 10 rows of Computer names, but when the program runs it only reports back 5 of the names.

The Class data is:




The next class is:




Thank you in advance.

Jin.
Doug Braidwood
Ranch Hand

Joined: Apr 04, 2010
Posts: 42
When you are running this to test it, do you have

uncommented?

That would explain things.


SCJP, SCWCD
Doug Braidwood
Ranch Hand

Joined: Apr 04, 2010
Posts: 42
To clarify iter.next() is returning the next value and moving the iterator on.
So if you System.out(iter.next());
and then return(iter.next());
then you will take your 10 values and output 5 of them to the screen and return the other 5 from the function.
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14150
    
  18

Welcome to JavaRanch.

Please UseCodeTags when you post source code - I've added them for you in your post above.


Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 7 API documentation
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Dhan Kumar
Greenhorn

Joined: Aug 03, 2009
Posts: 29

I got it....one different reason which exactly explains the flaw.
See the below code


getTheData method is called twice that explains why you get only half of the text from file.

try this : this will work.
jin kazama
Greenhorn

Joined: Mar 09, 2010
Posts: 7
Thank you all for your kind advice.

The solution posted by Dhan has resolved the issue.

Cheers

Jin.
 
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