Write some Software

Your system design should conform to the Open Closed Principle so that your design should easily support new functions (e.g. change of name of security) and securities, for example, creation of BankNote record which is a subclass of Security.

You MUST apply the following design patterns for your new system

Command pattern to provide the “create”, “display”, “deposit”, “withdraw”, “undo”,

“redo” and “show undo/redo list” functions

Factory pattern or Abstract Factory Pattern to create different Command objects and Security objects (e.g. Bond object, Stock object, etc.)

Memento pattern to provide “Undo” and “Redo” functions

Skills: Java

See more: write a short paragraph in which you tell your partner about your eatihg habits اريد هذا الموضوع, software write mq4, software write chip epson, useful software write book, software write web specs, free software write user guide, software write edid, free software write company profile, write brief essay disucssion association following, write assembly language program sort following numbers, software write websites idea, layer software radar display, software write book images, simple deposit withdraw php, software write books, software write protection, free software write book, software write book, content server software digital display, server software digital display, software write protect software, software write technical manual

About the Employer:
( 0 reviews ) hong Kong, Hong Kong

Project ID: #12021783

Awarded to:


We are team of excellent developers. We have 2 year experience related to your project field. We can do your project and solve your all problems according to your requirements. We have read your description for project More

$240 HKD in 1 day
(17 Reviews)

5 freelancers are bidding on average $237 for this job


Dear Sir, We are a talented group of iOS and Android developers. We previously have working experience of 1. Samsung Camera film sharing market application "Pro Suggest Market" - both iOS and Android 2. Samsung More

$280 HKD in 15 days
(6 Reviews)
$555 HKD in 1 day
(5 Reviews)

hello sir, I am java expert and I have experience in coding the principles you [login to view URL]'s discuss the detail of your project in private chat.

$200 HKD in 0 days
(17 Reviews)
$200 HKD in 3 days
(1 Review)

Hello Mate We are a young team that is focused on growth through doing things differently. Since inception we have focused on delivering projects which are benchmarked by its quality. We say what we can deliver and d More

$265 HKD in 7 days
(0 Reviews)
$400 HKD in 1 day
(0 Reviews)