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java program

Proyek ini menerima 10 penawaran dari para freelancer berbakat dengan harga penawaran rata-rata $178 HKD.

Dapatkan penawaran gratis untuk proyek seperti ini
Pemberi kerja bekerja
Anggaran Proyek
$80 - $240 HKD
Total Penawaran
10
Deskripsi Proyek

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

Keahlian yang Diperlukan

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Pekerjakan para freelancer yang juga menawar di proyek ini

    • Forbes
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    • Time
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