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Introduction:

We chose the budget tracker as a project for the CS214 Data Structure lab course, which aims to provide a tool for students to manage their income and expenses. The program should offer basic and important functionalities for tracking income, categorizing expenses, and calculating the budget.

Requirements:

  1. Inputs:

    • Income: Users will first enter their monthly salary, and after that, they can add any additional income to their budget along with the category of income.
    • Expense: Users will be able to enter expenses with their categories and amounts to track all transactions.
    • Income/Expense ID: Users can modify any transaction by entering its ID to change the amount, category, or type.

  2. Outputs:

    • Summary: The program will show the summary of all transactions in a well-formatted way with the following information:
      • Total Income
      • Total Expense
      • Current balance (Total Income – Total Expense) showing ID and category of each Income and expense
    • Warnings: If the budget reaches a limit of $200, a message will appear to the user.
    • Error handling: The program will also have basic error handling for invalid inputs and prompt the user to re-enter the correct input.

Functionalities:

  1. Main Menu:

    • The program will display a menu offering the following options:
      • Enter Income
      • Enter Expense
      • Delete Last Expense or Income
      • Modify a selected expense or income
      • Print summary
      • Exit

  2. Enter Expense or Income:

    • The program will store the income or expense details inside a linked list.

  3. View Summary:

    • This function will calculate the total balance and list all income and expenses.

  4. Modify Income or Expense:

    • This method will offer the ability to change any existing transaction to modify the amount, category, or type by entering the ID.

  5. Delete Last Income or Expense:

    • This method will allow the user to undo their last action, such as entering a new income or expense, by deleting it from the linked list.

  6. Enter Salary:

    • The first thing the user will do is enter their monthly salary.

  7. Exit:

    • If the user wishes to terminate the program, they can do so by choosing the exit option from the menu.