Bank Database application in C++
This project was about transforming a prior C application that can take, store, and modify user accounts of a bank through storing the information in a .txt file into a C++ application that was functionally the same. Through a large menu interface, the user could specify if they wanted to add a new record to the database, print all records from the database, find a record with a specific account number, delete a specific record from the database, or quit the application. On startup, the database information would be automatically loaded in from a specific .txt file and on quit, the databse information would be automatically written to a specific .txt file.
My role in this project was its creation in its entirety. I implemented this application through the UH Unix interface in the Vim text editor program where I was responsible for 100% of the work.
In this project, I gained experience with the connection between the C and C++ programming language, transforming C code to its C++ equivalent as well as implementing a complete bank databse application that covers many aspects of C++ programming which includes but is not limited to dynamically allocating memory on the heap that mimics a linked list data structure.
Here is some example code of an overloaded operator “«” that I used in my application:
/*****************************************************************
//
// Function name: operator<<
//
// DESCRIPTION: This function overloads the "<<"
// operator in order to allow all records of this
// database to be printed directly without using
// the printAllRecords() class.
//
// Parameters: os (ostream &) : Contains the reference to the
// output stream, where the
// formatted output will be sent.
// list (const llist&) : The constant reference to
// the other llist object,
// ensuring the other object
// is not modified during
// the process.
//
// Return values: ostream & : Contains the same output stream
// after appending the formatted data.
//
****************************************************************/
std::ostream& operator<<(std::ostream& os, const llist& list)
{
/*[DEBUG] mode information verification outout.*/
#ifdef DEBUG
std::cout << "\n[DEBUG]: Overloaded (<<) operator of the llist class called.\n";
#endif
/*Initialize a pointer to the first node of the other linked
list.*/
record* current = list.start;
/*If the current record is NULL, the datbase must be empty.*/
if (current == NULL) {
os << "\nNo records found in database.\n";
}
else
{
/*While the current record is not NULL,*/
while (current != NULL)
{
/*Append the details of the formatted current record
to the output stream, then move to the next node.*/
os << "\nAccount Number: " << current -> accountno << "\nName: " << current -> name << "\nAddress:\n" << current -> address << "\n\n";
current = current -> next;
}
}
/*Return the reference to the formatted output stream
containing all of the records.*/
return os;
}
Notice how I love to provide long and descriptive comments on how my code works. I have always taken pride in explaining code thorughly to other people through commenting, and I plan to continue coding in this system for all future personal projects.