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charAt used on arraylist

Dustin Schreader
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Joined: May 25, 2009
Posts: 102
I'm trying to get characters from or actually just single letters from an arraylist. Am I able to use charAt on an array list, I'm getting an error when I try it: cannot find symbol on lines 73, 75, 77, 79. Should I use substring instead?
Henry Wong
author
Sheriff

Joined: Sep 28, 2004
Posts: 18113
    
  39


The JavaDoc would be good here... the java.util.ArrayList class doesn't have a charAt() or a substring() method.

Henry

Dustin Schreader wrote:I'm trying to get characters from or actually just single letters from an arraylist. Am I able to use charAt on an array list, I'm getting an error when I try it: cannot find symbol on lines 73, 75, 77, 79. Should I use substring instead?


Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor)
Manoj Kumar Jain
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Joined: Aug 22, 2008
Posts: 191

charAt() and subString() are the operation those belongs to String, these can't applied on Arraylist. These methods make no sense with ArrayList.
fetch the string from the Arraylist and then you can apply these methods.


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