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help need in Hashtable elements remove dynamically

Ranch Hand
Posts: 40
Eclipse IDE
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Hi All,

I need your help in solving a problem i am facing.

I am reading files from a particular folder and storing them into Hashtable(Key is filename and value is file object).

I need to read this Hashtable for a particular file extention. After getting particular file, i need to search associated files of first file in the same Hashtable. I need to store all these files in a list.

This part is working fine, but problem here is as i am reading the Hashtable sequentially, the same process will repeatin for the each associated file also. I tried to remove the associated files from Hashtable once they found but it is throwing

Exception in thread "main" java.util.ConcurrentModificationException
at java.util.Hashtable$ Source)
at HashEx.main(

can anybody give some suggestions so that i can avoid of reading associated files.
Posts: 22504
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Please UseOneThreadPerQuestion. You have asked the same question in the beginner forum, so I'll close this one.
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