How to edit Text Files?

Hi,
I have a text file with sample data like this.
Nokia|25
Motorola|30
LG|20
Samsung|50
Sony|25
I will get an argument like Nokia. I need to compare it with the data in the file. If I find a matching record in the file, I need to decrement the quantity, i.e 25 in this case(Nokia) and display a message in the screen.
Can someone tell me how this can be achieved?
Thanks.

Thanks for your reply. You have mentioned "When an update happens flush the list of items back to the file. ". If I am going to write it back to the same file, it will get appended right?. I need to update the file. Do you mean to say that i delete the existing file and re-create it and then flush the contents into the file?
I have just started coding in Java. So if incase you feel my question is absurd, please excuse me.

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Edited by: Sarvesh Singh on Nov 17, 2008 3:47 PM

How to edit Text Files?

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