Bank Database Application

This Bank Database Application is a solo project I completed in my Program Structure course (ICS 212) at the University of Hawaiʻi at Mānoa. I designed and implemented a user-friendly interface and database functions, allowing users to add, search, delete, and view customer records. I developed the application in both C and C++ using the UNIX operating system.

To efficiently manage the build process, I created a Makefile to handle the creation and updating of object files and the executable, including the option to run the program with or without debug mode through specified rules. I initially programmed the project in C and then ported it to C++. For the C project, I created header files containing the data structure for records and the function prototypes for the database functions. For the C++ project, I created header files containing the data structure for records and the class definition for managing records. The source files are separately organized for the user interface and database functions.

I learned how to approach various challenges I encountered while coding in C, including ensuring that no memory allocated on the heap was lost, inserting a new node into a linked list without disrupting the rest of the list, and effectively using pointers in a larger project with over a thousand lines of code. While translating the project from C to C++, I learned how to accomplish the same tasks in C++ and gained experience with implementing a copy constructor, overloading the assignment operator (operator=), and overloading the stream insertion operator (operator«).

Here is a portion of the code for the add function of the Bank Database Application in C:

int addRecord(struct record ** startAddress, int uaccountno, char uname[], char uaddress[])
{
    int stop;
    int result;
    struct record * new;
    struct record * addressOfPrevious;
    struct record * addressOfNext;

    stop = 0;
    result = -1;

    if (debugmode == 1)
    {
        printf("\nDebug Message:\n");
        printf("The addRecord function has been called.\n");
        printf("The function parameter names and values are listed below,\n");
        printf("uaccountno: \n%d\n", uaccountno);
        printf("uname: \n%s\n", uname);
        printf("uaddress: \n%s\n", uaddress);
    }

    if (*startAddress == NULL)
    {
        *startAddress = (struct record *)malloc(sizeof(struct record));
        (*startAddress) -> accountno = uaccountno;
        strcpy((*startAddress) -> name, uname);
        strcpy((*startAddress) -> address, uaddress);
        (*startAddress) -> next = NULL;

        result = 0;
    }

The printall function displays all customer records in the database.

The find function retrieves the customer record for the given account number, and the delete function removes the customer record associated with the provided account number.

The image below shows that the customer record was deleted.

The quit function allows the user to exit the program.

To see the code for my Bank Database Application in C, click here. To see the code for my Bank Database Application in C++, click here.