Bank Program v1

//more with classes YEAHAHAHYYA
#include <iostream>
#include <string>
#include <vector>
#include <fstream>
#include <xpolymorphic_allocator.h>
using namespace std;

struct bankAccount //structure
{
    string Address;
    string NewAddress;
    string City;
    string State;
    string Zip;
    string AccNum;
    string Fname;
    string Lname;
    string Street;
    string NewStreet;
    char AccType;
    double Balance;
    double AddBalance;
    double IntRate;
    double AddIntRate;
    int AccountNumber;
    int EnterAccNum;
};
vector <bankAccount> EpicBank;
bankAccount newAcc;

class Bank2
{

public:
    int NextAccNum = 1;
    int counter = 0, counterValue;
    int info[4];
    string AddName;
    string ChangeName;
    string line;
    vector<string> NewName;
    vector<string> InfoList;
    vector<string> ::iterator it;

    void OpenFile() //file, not needed yet
    {
        ifstream infoFile;
        infoFile.open("info.txt");
        if (infoFile.is_open())
        {
            cout << "Info File Opened\n";
        }
        else cout << "Unable to open info file. The location may have changed or the file may be damaged.";
    }


    void menu() //main menu
    {
        string useChoice;
        char choice;
        bool flag = true;
        do
        {
            cout << "Choose an option: \n";
            cout << "1. Change Account Name\n";
            cout << "2. Make Deposit\n";
            cout << "3. Add Interest\n";
            cout << "4. Change Address\n";
            cout << "5. Search Name\n";
            cout << "6. Search City\n";
            cout << "7. Add An Account\n";
            cout << "8. Display account information\n";
            cout << "9. Quit\n";
            cin >> useChoice; //users choice
            int usingAccount;

            choice = useChoice[0];

            switch (choice)
            {
            case '1': // change name
            {
                changeName();
                break;
            }
            case '2': //make deposit
            {
                MakeDeposit();
                break;
            }
            case '3': //add interest
            {
                AddInterest();
                break;
            }
            case '4': //change address
            {
                ChangeStreet();
                break;
            }
            case '5': //search by name
            {
                SearchName();
                system("PAUSE");
                system("CLS");
                break;
            }
            case '6': //search by city, not working
            {
                SearchCity();
                system("CLS");
                break;
            }
            case '7': //adds new account
            {
                AddAccount();
                break;
            }
            case '8': //display account into
            {
                DisplayInfo();
                break;
            }
            case '9': //quits
            {
                flag = false;
                break;
            }
            default: //if user presses wrong key
            {
                cout << "You have pressed an incorrect key. Please try again.\n";
                system("CLS");
            }
            }
        } while (flag == true); //sets bool false, quitting program
    }
    int accGet()
    {
        int accNum;
        bool foundAcc = false;
        int useAcc;

        system("CLS");
        cout << "\nEnter Account Number ";
        cin >> accNum;

        // Checks if it is a valid input
        while (!cin)
        {
            cout << "Invalid selection.  Please enter account number only\n\n"; //invalid selection change
            cin.clear();
            cin.ignore(numeric_limits<streamsize>::max(), '\n');
            cin >> accNum;
        }

        // Finds the account with the matching number
        for (int i = 0; i < EpicBank.size(); i++)
        {
            if (accNum == EpicBank[i].AccountNumber)
            {
                useAcc = i;
                foundAcc = true;
            }
        }

        // Lets the user know whether their account was found
        if (foundAcc == false)
        {
            cout << "\nNo account found\n";
            system("PAUSE");
        }
        else
        {
            cout << "\nAccount " << EpicBank[useAcc].AccountNumber << " has been found" << endl;
            system("PAUSE");
            return useAcc;
        }
    }
    void changeName() //changes first and last name
    {
        int useAcc = accGet();
        system("CLS");
        cout << "\nPlease enter your new first name\n";
        cin >> ChangeName;
        EpicBank[useAcc].Fname = ChangeName;
        cout << "\nPlease enter your new last name\n";
        cin >> ChangeName;
        EpicBank[useAcc].Lname = ChangeName;
        system("PAUSE");
        system("CLS");
    }
    void AddAccount() //add account function
    {
        system("CLS");
        char NewAccType;
        string newInfo;
        int newBal;
        cout << "\nPlease Enter The Following Info:  "; //asks for all info
        cout << "\n\nFirst: ";
        cin >> newInfo;
        newAcc.Lname = newInfo;
        cout << "\nLast: ";
        cin >> newInfo;
        newAcc.Fname = newInfo;
        cout << "\nAddress number: ";
        cin >> newInfo;
        newAcc.Address = newInfo;
        cout << "\nCity: ";
        cin >> newInfo;
        newAcc.City = newInfo;
        cout << "\nStreet: ";
        cin >> newInfo;
        newAcc.Street = newInfo;
        cout << "\nState: ";
        cin >> newInfo;
        newAcc.State = newInfo;
        cout << "\nZip code: ";
        cin >> newInfo;
        newAcc.Zip = newInfo;
        cout << "\nEnter C or S for checking or savings: ";
        cin >> NewAccType;
        newAcc.AccType = NewAccType;
        cout << "\nEnter a balance: ";
        cin >> newBal;
        newAcc.Balance = newBal;
        cout << "\nEnter an interest rate: ";
        cin >> newBal;
        newAcc.IntRate = newBal;

        newAcc.AccountNumber = NextAccNum;
        NextAccNum++; //increments next account number

        cout << "\n\nYour account has been set up with the number: " << newAcc.AccountNumber << endl; //shows account number
        EpicBank.push_back(newAcc);
        system("PAUSE");
        system("CLS");
    }

    void DisplayInfo() //just displays info
    {
        int useAcc = accGet();
        cout << "\nName: " << EpicBank[useAcc].Fname << " " << EpicBank[useAcc].Lname << "\n";
        cout << "Balance: " << EpicBank[useAcc].Balance << "\n";
        cout << "Interest Rate: " << EpicBank[useAcc].IntRate << "\n";
        cout << "City: " << EpicBank[useAcc].City << "\n";
        cout << "State: " << EpicBank[useAcc].State << "\n";
        cout << "Street: " << EpicBank[useAcc].Street << "\n";
        cout << "Number Address: " << EpicBank[useAcc].Address << "\n";
        cout << "Account Number: " << EpicBank[useAcc].AccountNumber << "\n";
        cout << "Account Type: " << EpicBank[useAcc].AccType << "\n";
        system("PAUSE");
        system("CLS");
    }

    void MakeDeposit() //adds money
    {
        system("CLS");
        int useAcc = accGet();
        cout << "Please Make A Deposit: ";
        cin >> EpicBank[useAcc].AddBalance;
        EpicBank[useAcc].Balance = EpicBank[useAcc].AddBalance + EpicBank[useAcc].Balance;
        system("PAUSE");
        system("CLS");
    }

    void AddInterest() //adds interest
    {
        system("CLS");
        int useAcc = accGet();
        cout << "Please Add Interest: ";
        cin >> EpicBank[useAcc].AddIntRate;
        EpicBank[useAcc].IntRate = EpicBank[useAcc].AddIntRate + EpicBank[useAcc].IntRate;
        system("PAUSE");
        system("CLS");
    }

    void ChangeStreet() //changes street
    {
        system("CLS");
        int useAcc = accGet();
        cout << "Please Enter your Address Number: ";
        cin >> EpicBank[useAcc].NewAddress;
        EpicBank[useAcc].Address = EpicBank[useAcc].NewAddress;
        cout << "Please Enter your Street Name: ";
        cin >> EpicBank[useAcc].NewStreet;
        EpicBank[useAcc].Street = EpicBank[useAcc].NewStreet;
        system("PAUSE");
        system("CLS");
    }

    void SearchCity()
    {
        // Asks for the city they want to search for
        system("CLS");
        int useAcc = accGet();
        string findcity;
        cout << "\nWhat city would you like to search for?\n";
        cin >> findcity;

        cout << "\n\nSearching...\n";
        cout << "\nAll results for " << findcity << " are shown below\n\n";

        // Searches for a matching city in the accounts
        for (int i = 0; i < EpicBank.size(); i++)
        {
            if (EpicBank[i].City == findcity)
            {
                // Displays the account number, name, and city
                cout << (i + 1) << " " << EpicBank[i].Lname << ", " << EpicBank[i].Fname << ", " << EpicBank[i].City << endl;
                system("PAUSE");
            }
        }
    }

    void SearchName()
    {

        // Asks for the name they want to search for
        system("CLS");
        int useAcc = accGet();
        string name;
        cout << "\nWhat name would you like to search for?\n";
        cin >> name;
        cout << "\n\nSearching...\n";
        system("PAUSE");
        system("CLS");
        cout << "\nAll results for " << name << " are shown below\n\n";
        // Searches for a matching name in the accounts
        for (int i = 0; i < EpicBank.size(); i++)
        {
            if (EpicBank[i].Fname == name || EpicBank[i].Lname == name)
            {
                // Displays the account number and name
                cout << (i + 1) << " " << EpicBank[i].Lname << ", " << EpicBank[i].Fname << endl;
            }
        }
    }
};


int main()
{
    Bank2 Bank;
    //Bank.OpenFile();
    Bank.menu();
    return 0;
}