Anyone know how to do an ipo for the employee management system?

[Vinc_1]

#include <iostream> // input and output code
#include<conio.h> // getch - passwd
#include<cstdio> // fileopen fscanf fileclose
#include<windows.h> // system cls and pause
using namespace std;

///////////////////////////////////////////////////CLASS EMPLOYEE /////////////////////////////////////////////////////////
class admin{
private:// variables for admin details
    char name[30],id[5],position[20];
    int age,Salary,experience;

    //quit functions
    void quit(void){
        cout<<"\n\n\n Please ENTER To Go Back MAIN PAGE \n\n";
        cin.get(); // get update the information key infrom user before quit
        cin.get(); // get update the information key in from user before quit
    }

    void listEmployees(void){ //To list total employees with Name, ID and Position
        system("cls"); //clear the screen
        FILE *file; // to open a existed file or create a file if doesn't exist
        file= fopen("data.txt", "r"); // opened file with data.txt and only able to read the data
        cout<<"\n\t     List of Employees of RSVV SDN.BHD\n";
        cout<<"\n========================================================";
        cout<<"\n= Name        ||     Employee ID     ||       Position =";
        cout<<"\n========================================================";
        //while ((fscan(file, "%[^\n]",line))!= EOF) %s//string  %d//integers or numbers
        // it will scan the data in the file and update the data inside the dta.txt before void quit
        while(fscanf(file, "%s %s %s %d %d %d", &name[0], &id[0] , &position[0], &age, &Salary, &experience)!= EOF)
            cout<<"\n"<<name<<"\t\t\t"<<id<<"\t\t\t"<<position; // update the name,id and position in the table
        fclose(file); //close the created file
        quit(); //calling the void quit
    }

    // functions to call the updated employee list
    void duplistEmployees(void){ // this void to showcase the the list before edit,delete menu
        system("cls"); //clear the screen
        FILE *file; // to open a existed file or create a file if doesn't exist
        file= fopen("data.txt", "r"); // opened file with data.txt and only able to read the data
        cout<<"\n\t     List of Employees in RSVV SDN.BHD\n";
        cout<<"\n========================================================";
        cout<<"\n= Name        ||     Employee ID     ||       Position =";
        cout<<"\n========================================================";
        //while ((fscan(file, "%[^\n]",line))!= EOF) %s//string  %d//integers or numbers
        // it will scan the data in the file and update the data inside the dta.txt before void quit
        while(fscanf(file, "%s %s %s %d %d %d", &name[0], &id[0] , &position[0], &age, &Salary, &experience)!= EOF)
            cout<<"\n"<<name<<"\t\t\t"<<id<<"\t\t\t"<<position; // update the name,id and position in the table
        fclose(file); //close the created file

    }

    void showDetails(void){ //Displays all details according to Employee's id
        duplistEmployees(); // calling the updated employee list
        char checkId[5]; // declare to check if got any exist id
        cout<<"\n\nPlease Enter the Employee ID: ";
        cin>>checkId;
        FILE *file;
        file= fopen("data.txt", "r"); // open the file and read the file data
        //while ((fscan(file, "%[^\n]",line))!= EOF) %s//string  %d//integers or numbers
        while(fscanf(file, "%s %s %s %d %d %d", &name[0], &id[0] , &position[0], &age, &Salary, &experience)!=EOF)
            if(strcmp(checkId,id)==0){ //checking the inputted variable with the existing variable is yes so the permission access given
                cout<<"\n---------------------";
                cout<<"\nEmployee Name: "<<name;
                cout<<"\n---------------------";
                cout<<"\nEmployee Id: "<<id;
                cout<<"\n---------------------";
                cout<<"\nEmployee Position: "<<position;
                cout<<"\n---------------------";
                cout<<"\nEmployee Age: "<<age;
                cout<<"\n---------------------";
                cout<<"\nEmployee Salary: "<<Salary;
                cout<<"\n---------------------";
                cout<<"\nEmployee Experience: "<<experience;
                cout<<"\n---------------------";
            }
        fclose(file); //close the opened file
        quit(); //calling the quit function
    }

    void editExisting(void){ //edit the existing employee list
        duplistEmployees(); //calling out updated employee list
        char checkId[5];
        cout<<"\nPlease Enter Employee ID To Edit: ";
        cin>>checkId;
        char newPosition[10];
        cout<<"\n-----------------------------";
        cout<<"\nPlease Enter The New Position Of The Employee: ";
        cin>>newPosition; // key in newposition of the employee
        int newSalary;
        cout<<"------------------------------";
        cout<<"\nPlease Enter The New Salary Of The Employee: ";
        cin>>newSalary; //key in the newSalary of the employee
        FILE *file, *tempfile; // to open a existed file or create a file if doesn't exist // create a temp file as well
        file= fopen("data.txt", "r"); // file manipulation method
        tempfile= fopen("temp.txt", "w"); //using temp file manipulation method
        //while ((fscan(file, "%[^\n]",line))!= EOF) %s//string  %d//integers or numbers
        while(fscanf(file, "%s %s %s %d %d %d", &name[0], &id[0] , &position[0], &age, &Salary, &experience)!=EOF){
            if(strcmp(checkId, id)==0)
                fprintf(tempfile, "%s %s %s %d %d %d \n", name, id, newPosition, age, newSalary, experience );
            else
                fprintf(tempfile, "%s %s %s %d %d %d \n", name, id, position, age, Salary, experience );
        }
        fclose(file);
        fclose(tempfile);
        int isRemoved= remove("data.txt"); // remove the content of the data.txt
        int isRenamed= rename("temp.txt", "data.txt"); //change the temp file data into data.txt file.
        quit();
    }

    void addNewEmployee(void){ //adding records
        system("cls"); //clear the screen
        duplistEmployees(); // calling out the updated employee list
        cout<<"\n----------------------------------------";
        cout<<"\n PLease Enter The Name of New Joined Employee: ";
        cin>>name;
        cout<<"\n----------------------------------------";
        cout<<"\n Please Enter The New Joined Employee ID [MAX 4 digits]: ";
        cin>>id;
        cout<<"\n----------------------------------------";
        cout<<"\n Please Enter The New Joined Employee Position: ";
        cin>>position;
        cout<<"\n----------------------------------------";
        cout<<"\n Please Enter The New Joined Employee Age: ";
        cin>>age;
        cout<<"\n----------------------------------------";
        cout<<"\n Please Enter The New Joined Employee Salary: ";
        cin>>Salary;
        cout<<"\n----------------------------------------";
        cout<<"\n Please Enter The New Joined Employee Experience (IF NO EXPERIENCE PUT '0'): ";
        cin>>experience;
        cout<<"\n----------------------------------------";

        char ch;
        cout<<"\nPlease Enter 's' TO Save The Employee's Information\n";
        cin>>ch;
        if(ch=='s'||ch=='S'){
            FILE  *file; // to open a existed file or create a file if doesn't exist
            file= fopen("data.txt","a"); //open a data.txt file without changing the content
            fprintf(file, "%s %s %s %d %d %d \n", name, id, position, age, Salary, experience );
            fclose(file);
            cout<<"\nA New Employee Has Been Added To The System\n";
        }
        else
            addNewEmployee();
        quit();
    }

    void deleteEmployeeDetails(void){ //removing records
         duplistEmployees();
        char checkId[5];
        cout<<"\n----------------------------------";
        cout<<"\nPlease Enter The Employee Id: ";
        cin>>checkId;
        char ch;
        cout<<"----------------------------------";
          cout<<"\n\n\n\n\n\n Do you want to remove this employee?";
        cout<<"\n\n\n\n\nCONFIRMATION!!!\nEnter 'r' To Confirm Deletion \n";
        cin>>ch;
        if(ch=='r'||ch=='R'){
            FILE *file, *tempfile; // to open a existed file or create a file if doesn't exist // create a temp file as well
            file= fopen("data.txt", "r");
            tempfile= fopen("temp.txt", "w");
            //while ((fscan(file, "%[^\n]",line))!= EOF) %s//string  %d//integers or numbers
        // it will scan the data in the file and update the data inside the dta.txt before void quit
            while(fscanf(file, "%s %s %s %d %d %d", &name[0], &id[0] , &position[0], &age, &Salary, &experience)!=EOF)
                if(strcmp(checkId, id)!=0)
                    fprintf(tempfile, "%s %s %s %d %d %d \n", name, id, position, age, Salary, experience );
            fclose(file); //close the create file
            fclose(tempfile); //close the create temo file
            int isRemoved= remove("data.txt"); //remove the data file
            int isRenamed= rename("temp.txt", "data.txt"); //change temp.txt as the data.txt
            cout<<"\nRemoved Successfully\n";
            quit();
        }
        else
            deleteEmployeeDetails();
    }

[rproffitt]

Here, "ipo" is Initial Public Offering.

I can't find any mention of ipo in your code so you need to clarify what IPO is or change the question.