Lab 9

Stocks Portfolio Management Application

Note: The project uses Lombok. Please install the Lombok plugin. In IntelliJ: File->Settings...->Plugins - search 'Lombok'

Exercise 1

Implement a basic stock portfolio tracker application starting from the example provided in package exercise 1.

The aplication should provide following functionalities:

• Authentication (Login) - finish the login implementation. Currently, the credentials are not verified; anyone can access the application.

• View market stocks and their current value - this feature is implemented and can be used as reference for next exercises;

• View user portofolio owned stocks
  • View owned stocks in a table view similar to Market;
  • For each owned stock display in table followings: symbol, quantity, price per unit, total price of the position;
  • Also add available funds (cash).

• Buy stock:
  • Implement "Buy" button functionality;
  • Buy is limited by available cache funds (stored in Portfolio class, attribute "cash");

• Sell stock
  • Create user interface similar to Buy interface
  • Symbol dropdown button should display only stocks owned by user;
  • When the sell is completed, the available funds should increase with the value of the transaction;

Implementation notes

Note 1 - Stock symbols are hardcoded in StockMarketQueryService private String[] symbols = new String[] {"INTC", "BABA", "TSLA", "AIR.PA", "MSFT", "AAPL", etc.}; You can add your own symbol as long as correspond to some real market symbols.

Note 2 - For getting financial market information the application uses htmlunit library, which consumes the Yahoo Finance API:

    <dependency>
        <groupId>net.sourceforge.htmlunit</groupId>
        <artifactId>htmlunit</artifactId>
        <version>2.70.0</version>
    </dependency>

Exercise 2

Create UML Class diagram and insert it bellow.

----- UML CLASS DIAGRAM -------

Exercise 3 (Optional)

Study MVC design pattern and how this can be implemented in Java. Here is a link presenting how MVC pattern can be implemented:

• https://examples.javacodegeeks.com/core-java/java-swing-mvc-example/

Exercise 4 (Optional)

Add a layer of persistence to your application:

• Save the accounts in a file on the disk.
• Save the user's portfolios on the disk. Keep in mind that you can have multiple users.
• You can use either Java's native serialization support or the JSON format.