User Information Management With Unique Entry Check System

_{Canva Design}

Today I have brought you a mini project of C++ through which we can collect data from the user and collect it in a separate sheet. For this, we will have two files. One of them will be our data collection file, whose extension will be C++. In this file, we will write all our data and the other will be our file with the extension text UserData.txt where all our data will be stored.

An overview of our project is as follows: first we will have the user enter data and that data will be saved in a separate file. When the data is saved, our screen will be cleared and we will be shown a message that your data has been submitted. If our data has been submitted, if we want to add more data, we will continue by writing Y. If we want to end it, we will end it by writing N. If we write N, we will be shown a message that your work has been finished and the data has been submitted. If we write Y, then we will be asked to enter more data. The screen will be cleared once again and there we will take input from the user and the data will be submitted again in the same way.

If we have already entered data, then if we want to enter that data again, it will not be entered. We will receive a message that your data has already been submitted. Similarly, a user can submit his data only once.

First, we look at the explanation of the data collection file to see how the functions in our code are working and what their function is. The explanation is listed below.

Libraries:

First, let's talk about these libraries and why they are used.

• #include <iostream>: The first one is that it supports our input and output operations, which include cin and cout.
• #include <fstream>: This handles our file reading and writing operations.
• #include <string>: This enables working with strings.
• #include <cstdlib>: It is used for system commands such as clearing the screen, etc.
• #include <set>: It is used to store data and check whether the data is unique or not.

Store User Data:

We have used a structure to hold all the information of the users, it holds the user's name, age, and email.

Track Submitted Users:

This saves the data of those who have already submitted and prevents them from submitting again if someone wants to.

Get Current User Count:

It opens the user data file and reads it line by line. If it sees a user written anywhere, then it will add the next user. Thus, if three users already exist, it will add the fourth user. This increases the user's count.

Collect & Save Data:

This declares the user object from the user data structure. It opens the file containing the user data and confirms that it adds the new data without deleting the previous data. This uses the getCurrentUserNumber() to call the next number.

Get User Input:

This function receives the user name as input and then checks using the submittedUsers.find(user.name) whether the data already exists or not. If it does, it prints a message that the data is already submitted.

Takes age and email as input and to remove the newline character left in the input buffer use cin.ignore().

Save Data:

This function writes the data to the data user file and sets the format in it. If there is a first user, then he will come first. If there is a user after that, then he will come in number two and if there is any after that, then he will come in number three. In this way, if the data is duplicated, then it is put in the submittedUser and ends it. If that file is not opening, then it will show a message that there was an error opening the file.

Screen Clearing & Show Confirmation:

Using system(slc) clears the screen and shows a success message if data has been successfully submitted.

Main Function:

This main function continues the user data collection until the user writes n. If the user writes y, then it adds more data and if the user writes n, then it shows the finished message. This input is obtained using do-while loops. It collects data using collectUserData(). Apart from this, after each entry, it clears the screen and either displays a finished message or adds new data.

These are all the outputs that we get after doing this project. First, we are asked to enter the data. Secondly, when the data is entered, a message is shown. If you want to end this program, you will be shown a separate message. If you want to enter more data, you will be asked to continue. If the data has already been submitted, you will be shown that the data cannot be resubmitted.

Data Input	After Adding data
After Add data When We Finish	When User Adds Twice Same Data

All the data that will be input by the user will be saved in a separate file. That file is shown below. Here all the data that has been submitted by different users is being shown. No data is duplicated because here data will be submitted only once.

_{Saved Data}

Video Output

A video explanation of my entire project is given below, showing how the project works.