This document summarizes an expense tracker application created by Group 9. It includes 3 sentences: The application allows users to track expenses and income over time, add and search transactions, view automated repeat transactions, and see spending patterns through graphical reports. It uses linked lists and text files to store transaction data and supports functions like login/account management, editing, searching, undo/redo, and automatic calculation of repeat transactions. The group claims the application works fast without errors and could be used to manage personal expenses.

1. Expense Tracker
GROUP 9
Our members
1. Mr. LAY Leangsros
2. Mr. YANH TIEP
3. Mr. CHHUT Simeth
INSTITUTE OF TECHNOLOGY OF CAMBODIA
DEPARTMENT OF COMPUTER SCIENCE
Lecturer
Mr. VALY Dona
June 6th 2014

2. Contents
 Application Features
 Algorithms
 Conclusion
2

3. 31.Application Features
1. Security
Login (If enter incorrect 4 times, the program will exit)
Add new account (maximum account : 8 accounts)
Remove account (Impossible to delete Administrators)
Change password
2. Edit
Add
New
Save
Modify
Delete
Delete all
Undo
Redo
5. Graph report
Graphs allow you to see you spending patterns
By month
By year
Maximum expense/Income/both
Minimum expense/Income/both
Average expense/Income/both
Total expense/Income
3. Search the transactions
4. Auto Calculates the repeat transactions

4. 42. Algorithm
 Singly linked list
 File product_expense.txt
•Data
•data
product_income.txt
•Data
•data
product_all.txt
•Data
•data
1.Data storing

5. 52. Algorithm
2. Operation
 Undo (Delete)
2data
3data
1data
tmp

6. 62. Algorithm
2. Operations
 Undo (After delete)
2data
3data
1data
tmp
3data
undo
Action
Value = DELETE
Position = 3

7. 72. Algorithm
3. Operations
 Undo (After click undo)
items
4data
5data
6data
7data
2data
3data
1data
tmp undo
Value = ADD
Position = 3

8. 82. Algorithm
3. Operations
 Redo (After redo)
items
4data
5data
6data
7data
2data
3data
1data
tmp redoundo
Action
Value = DELETE
Position = 3
3data Action

9. 92. Algorithm
3. Repeats
 Everyday
strstr(1data,2data)
items
4data
4data(x34)
5data
2data
3data
1data
items
4data
4data(x35)
5data
2data
3data
1data(xN)
1data1data
strstr(1data,2data)

10. 3. Conclusion 10
 All important functions worked.
 Program works fast without any error, NOTHING error.
 This application is possible to use for personal expense

11. Demo
Thank you !
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