38_SY_FamilyExpenseTracker

[mansiwanjale]

SY_38_FinTech_FamilyExpenseTracker created

[mansiwanjale]

Team 38 - Family Expense Tracker

Team Members:

Swati Kumbhar
Shrutika Nalawade
Tejal Khot
Mansi Wanjale

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Project Description

Family Expense Tracker* is a console-based Java application designed to help families collaboratively manage their income and expenses. It supports multiple users with role-based access (admin and members), category-wise budgeting, debt settlement, and visual trend analysis.

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Features:

• Admin Features:

  • Register users and add them to the family
  • Assign category-wise monthly budgets
  • Track family-wide income and spending
  • Settle debts optimally

• Member Features:

  • Add monthly income
  • Add and split expenses
  • View personal dashboards and alerts
  • Filter and analyze personal expenses

• Universal Features:

  • Dynamic budget alerts (80%, 90%, 100%)
  • ASCII-based bar charts for monthly trends
  • Category suggestion using prefix search (Trie)
  • Debt Graph + Min Cash Flow for settlement

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Data Structures Used:

• HashMap – Users, family members, categories
• ArrayList – Storing expense records
• TreeMap – Category trie for search
• PriorityQueue – Budget alerts
• HashMap<String, HashMap<String, Double>> – Debt graph for optimal settlement

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Time Complexities (Key Operations):

• Login/Register: O(1)
• Expense Filtering: O(n)
• Debt Settlement (Greedy): O(n log n)
• Monthly Trends: O(n)

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How to Run:

1. Compile the code:

   javac FamilyExpenseTracker.java
   

2. Run the program:

java FamilyExpenseTracker

3. Follow the menu prompts to register, login, manage expenses, and view dashboards.

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4. Video Link for explanation
   https://drive.google.com/drive/folders/1WpqsUansLsl-nOPyMVvaoMptio9r9tbb?usp=sharing

Notes:

Java 17+ is recommended

Project is console-based for now, but can be extended to JavaFX UI