[ajug-members] question from a new coder

[Kerry Randolph]

Hello all

I'm fairly new to Java and not sure how to do this. Any help would be
appreciated.
I'm trying to iterate through a TreeSet and if any String element ends in
"-8000" or "-443" I want to chop that part off.
Here's what I'm trying, but getting a ConcurrentModificationException:

    private TreeSet<String> cleanup(TreeSet<String> tSet){
        Iterator<String> iter = tSet.iterator();
        while(iter.hasNext()){
            String s = (String)iter.next();
            if(s.endsWith("-8000")){
                tSet.remove(s);
                s = s.substring(0, s.length()-5);
                tSet.add(s);
            }
            if(s.endsWith("-443")){
                tSet.remove(s);
                s = s.substring(0, s.length()-5);
                tSet.add(s);
            }
        }
        return tSet;
    }

Thoughts????    Thanks for the help!!!
--Kerry
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