Summing up integers displayed in a textfield.

I have an applet where a user can place order(s) on the items displayed in a combobox. So I have a textfield that will show the price, another texfield that shows the total, a textarea that displays the user's order and a button called checkout.
Okay, here is my problem. When the user orders more than one item, and clicks on checkout, I want the total price of the items ordered to be displayed in the total texfield. So how do I do the sum to produce the total in the total field. Please note that the value of price changes based on the item the user is ordering. I will really appreciate it if anyone out there can assist. Thanks a lot in advance!!

Dr... I don't think I've ever seen you so snide... I like it :-)
OP: Well, that would really depend on what your textarea's contents look like...
Are you putting just some text:
thing 1 $4
thing 2 $5
thing 3 $4
If that's your text, and you want to pull that out... well, you could use a StringTokenizer to parse the lines and indexOf/substring on the line strings to find the price, then do the aforementioned arithmetic. But that isn't the easiest or most maintainable way...
Generally, I would say you should have a list objects which is your order. In the list, you put an object of a class called Product (or something similar) which has 3 fields (at least): ID, price, quantity. Generally, ID is some unique ID which is a key to another table of data which has name, description, etc.
So your text area is only used to display the list, which you could simply show by creating a text string based on those products. Or course, really, I would do a JTable to with a custom TableModel to show the Product list, but that's something you can save for later.
Anyway, you have this list of Product objects, and it'd be very easy with a for loop to go thru the list, add up all the product costs (total += (quantity * price)) and then display that total in the appropriate place.

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Hi
my problem is, for each job_id there is many users. Oh that's something completlty different...
I Strongly Recommand to_
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3.then u can deal with it normally no need to a sample code but just a form with Jobs as (Master) and Users as (detail) with a relation and with a simple query u can display each job_id is for many users.
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Ok, what I intended was the following:
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ok this is very simple, i don't know y it is not
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Summing up integers displayed in a textfield.

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