Dear Sir
Your project has no difficulty for me, may dev in Java work on Mac
pls kindly refer to my completed projects for your reference
https://www.freelancer.com/projects/C-Sharp-Programming/Write-some-Software-7835174.html
"Great work, super knowledgeable and stuck with it on something that ended up being more complex than we realized."
https://www.freelancer.com/jobs/Javascript/Edit-Fishbowl-Inventory-Report/
"Extremely professional and capable guy.... Really happy to have selected him for the project and will do so again for future projects!"
https://www.freelancer.com/projects/Software-Architecture/Phase-Java-RMI-Reward-program-7570296.html
"Best one, recommended"
https://www.freelancer.com/projects/php/HTTP-JSON-SIGNALR-website-connection/
"works perfect now! i appreciate very much the result! i hope we can soon do another project together!"
https://www.freelancer.com/projects/php/Add-Autochecout-feature/
"I will pay 100%.You did a great job!!! Thanks again"
https://www.freelancer.com/projects/Software-Architecture/exchange-simulator-update-existing.html
"thank you very much for your service! I highly appreciate your efforts and would like to run another project with you soon! "
https://www.freelancer.com/projects/Javascript-jQuery-Prototype/Need-small-NET-Ajax-proof.html
Glen took a *really* difficult problem relating to scraping web data coming from Ajax calls... Great communication
look forward to your kind message to chat in more details
Thanks