We Have Been Asked To Write An Investment Account Program

We Have Been Asked To Write An Investment Account Program With a Graph

We have been asked to write an Investment Account program with a Graphical User Interface (GUI) featuring buttons and functionality for managing an investment account. The program should include a login interface where the user inputs a username and a password to access the main features. The GUI should present options to deposit cash, withdraw cash, buy stocks, sell stocks, and get the overall balance of cash plus stock holdings. The stock options should include available stocks such as Google, Apple, Microsoft, IBM, and Facebook.

The deposit and withdrawal functionalities require the user to input amounts, while the buy and sell stock features require the user to specify the stock symbol, number of shares, and price per share. Additionally, the program should handle event processing for each action, using object-oriented principles.

From a technical standpoint, you need to create a subclass called InvestmentAccount that inherits from a pre-existing BankAccount class. The subclass should add new fields: StockSymbol, NumberOfShares, and PricePerShare. It should also include a revised constructor and an overridden total balance method that calculates the total value as the sum of cash balance and the current value of stocks (NumberOfShares multiplied by PricePerShare).

Paper For Above instruction

Introduction

Investment management has become a crucial aspect of personal financial planning, requiring tools that allow users to track and manipulate their investment portfolios efficiently. The integration of graphical user interfaces (GUIs) simplifies interaction, making financial operations accessible and manageable even for users without advanced technical expertise. The development of an Investment Account program that includes features such as cash deposits, withdrawals, stock trading, and balance calculations, integrated within an intuitive GUI, reflects a comprehensive approach to personal finance tools.

Design and Implementation of the Investment Account Program

The core objective of this project is to design and implement an investment management system encapsulated within a GUI application. The system leverages object-oriented programming principles, especially inheritance, to extend a basic bank account class into a more specialized InvestmentAccount class that manages stock holdings.

The application initiates with a login interface, requiring users to input a username and password. This user authentication step provides basic security and personal user identification, essential in financial applications. Upon successful login, the main interface is displayed, providing options for cash deposits, withdrawals, stock transactions, and balance inquiries.

Graphical User Interface Components

The GUI design employs buttons to facilitate different operations, each linked to event handlers that process user inputs and perform calculations or data modifications accordingly. The interface includes input fields for deposit and withdrawal amounts, as well as for stock transactions (stock symbol, number of shares, price per share). A dropdown menu or list box can be used to select available stocks, which simplifies user interaction and minimizes errors.

Operational Features

  • Cash Deposit: Prompts the user to enter an amount, then updates the account's cash balance accordingly.
  • Cash Withdraw: Prompts the user for an amount to withdraw, ensuring sufficient funds are available before updating the balance.
  • Buy Stock: Allows the user to specify a stock symbol, the number of shares, and the price per share, updating the stock holdings within the InvestmentAccount object.
  • Sell Stock: Similar to buying, but decreases stock holdings after validating that sufficient shares are owned.
  • Get Overall Balance: Calculates the total value as the sum of cash on hand and the current value of stocks held, using the overridden total balance method.

Object-Oriented Design: InvestmentAccount Class

The InvestmentAccount class extends the BankAccount class, inheriting its cash balance and related methods. New fields include:

  • String StockSymbol
  • int NumberOfShares
  • double PricePerShare

Its constructor initializes these fields alongside inherited ones, and the class features an overridden totalBalance method, which computes:

TotalDollars = cashBalance + (NumberOfShares * PricePerShare)

Event Handling and Processing

In the application, event listeners respond to GUI interactions, invoking respective methods within the InvestmentAccount class. For instance, pressing the ‘Buy Stock’ button triggers an event handler that reads user input, updates the stock holdings, and adjusts the cash balance if necessary. Error handling ensures users cannot sell more shares than they own or withdraw more than available cash. The design follows modular principles, with separate methods for each transaction type, promoting maintainability and scalability.

Conclusion

The development of a GUI-based investment management system offers users a practical tool to manage their finances and investments interactively. Using inheritance to extend a bank account with stock management capabilities streamlines the system's architecture, enabling easy updates and enhancements. Proper event handling ensures responsiveness and data integrity. Such applications contribute significantly to personal financial education and empowerment, providing real-world experience in software development, finance, and user interface design.

References

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