Files read/write in java and small function

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Bids
5
Avg Bid (USD)
$76
Project Budget (USD)
$30 - $250

Project Description:
Hi guys, I need the following program done in Java.
Please see the attached file for detailed instructions.

And I also provide a very similar code for reference.
Only need change a bit for this time project.

Thank you.

Skills required:
Java, Software Architecture
Additional Files: specification.pdf reference code.rar new project.rar
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