This is a Banking System made using C++ with Hashing Data Structure for better and easier access to user information. It also uses a Doubly Linked List.
When the program is ran, a menu will appear with 3 options:
- Login: When pressed, the user has to input their username and password after which, the program will try to find the username and if it is invalid, then it will either ask the user to create a new account or ask the user to make sure the username or password is correct.
-> After logging in, the user will have the choices to deposit, withdraw, check balance, and close their account.- Create New Account: When pressed, the user will have to input a username and password. After entering the username and password, the program will check to see if there is another user with the same username, if there is not then it will add the new user into the system. It will then redirect the user to the main menu where they can login with their newly created account.
- Quit: When pressed, the program will stop. The program will also utilize deposit, withdraw, and check balance.
Since it is a banking system, there will undoubtedly be collision between 2 username where their ASCII is the same. For that reason, I used chaining in my program where every index was initilized as NULL. When 2 account with same ASCII is created, they are inserted in the same index but their properties are different. In this case, each user in the same chain would have their own unqiue userID, username, password and balance. When an item is inserted in an index, the next value within the said index will be Null. When there are more than one user in an index, they are linked by a doubly linked list so that searching in an index will be possible, also for deleting purposes.
- To download my program, click the green "Code" button on my BankingSystem Github page. Then press the "Download.ZIP" which is the very last button on the dropdown menu. After downloading, extract everything from the .ZIP folder and open the folder with the text editor of your choice.
- To run the program, simply open the terminal of the editor. Complie it using "g++ -std=c++11 bankMain.cpp bank.cpp -o bank( or any name of your choice)" or "g++ bankMain.cpp bank.cpp -o bank". Afterwards enter "./bank" to run the program. Then create an account using "Option 2" or just enter "2" into the terminal. After that you can login using the account you just created. This is for windows, I am not sure how to run it on a mac.
- No additional system requirements.
There is a function that is commented out called "printTable()" from all of the files. The location where this function is used:
- bank.cpp: At the very end of the file.
- bankMain.cpp: Case 1 of the "Login Menu".
- bank.h: Line 31.
If you uncomment that, when you press "1" in the Login Menu, it prints the hash table. If you want to see how my program runs with collision, create 2 account. One with username "GoCatGo." and another with "GoDog,Go".
Also you can only deposit and withdraw whole numbers.