Question

C++

1.0: Customer Module

Create a customer account module to hold the residents details. Use a structure to store the following data about the customer account:

Field	Description
Account No	Start with character C and followed by 5 digits (e.g. C10212)
Name	Resident name
Address	Current housing address
Plot Number	Special identifier of the house (3 digits value)
Contact No	Resident HP number (e.g. 0125354123)
Date of Last Payment	Date in (dd-mm-yyyy) format. (e.g 15-12-2019)
Monthly Payment Amount	Example $130.00
Account Balance	Advance payment in the account

The structure should be used to store customer account records in a file. In this module, you should provide a menu (refer to figure 1.0) that lets the user perform the following operations:

1. Enter a new customer record into the file
2. Search for a particular customer’s record and display it.
3. Search for a particular customer’s record and delete it.
4. Search for a particular customer’s record and change it.
5. Display all the customer records.
6. Display the customer records with outstanding payments (For example if the monthly payment is $200. Two consecutive outstanding payments will record -400 in account balance column).

<> New Record Search Record Delete Record Edit Record List Records Outstanding records Exit Enter Option: Enter Option:

<> Customer Management Payment Exit Enter Option:

Answer 1

#include <iostream>
#include <string>
#include <vector>

class Date{
public:
Date(){}
Date(int d, int m, int y){
    day = d;
    month = m;
    year = y;
}
int getDay() const{ return day; }
int getMonth() const{ return month; }
int getYear() const{ return year; }
void setDay(int d){ day = d; }
void setMonth(int m){ month = m; }
void setYear(int y){ year = y; }
friend std::ostream& operator<<(std::ostream&, const Date&);
friend std::istream& operator>>(std::istream&, Date&);
private:
int day, month, year;
};

std::ostream& operator<<(std::ostream& o, const Date& dt)
{
o<<dt.getDay()<<"-"<<dt.getMonth()<<"-"<<dt.getYear();
return o;
}

std::istream& operator>>(std::istream& i, Date& dt)
{
int d, m, y;
i>>d;
i>>m;
i>>y;
dt.setDay(d);
dt.setMonth(m);
dt.setYear(y);
return i;
}

struct Customer{
std::string accountNo;
std::string name;
std::string address;
int plotNo;
int contactNo;
Date lastPayment;
double monthlyPayment;
double accountBalance;
};

class CustomerModule{
public:
CustomerModule(){}
void addNewCustomer(){
    Customer c;
    std::cout<<"Enter AccountNo: ";
    std::cin>>c.accountNo;
    std::cout<<"Enter Name: ";
    std::cin>>c.name;
    std::cout<<"Enter Address: ";
    std::cin>>c.address;
    std::cout<<"Enter PlotNo: ";
    std::cin>>c.plotNo;
    std::cout<<"Enter ContactNo: ";
    std::cin>>c.contactNo;
    std::cout<<"Enter Date of last payment(dd-mm-yyyy): ";
    std::cin>>c.lastPayment;
    std::cout<<"Enter Monthly payment: ";
    std::cin>>c.monthlyPayment;
    std::cout<<"Enter Account balance: ";
    std::cin>>c.accountBalance;
    customers.push_back(c);
}

void searchAndDisplay(){
    std::string name;
    std::cout<<"Enter Customer name: ";
    std::cin>>name;
    std::vector<Customer>::iterator it = customers.begin();
    while(it != customers.end()){
      if((*it).name == name){
        displayCustomer(*it);
        return;
      }
      it++;
    }
    std::cout<<"Customer "<<name<<" cannot found!"<<std::endl;
}

void searchAndDelete(){
    std::string name;
    std::cout<<"Enter Customer name: ";
    std::cin>>name;
    std::vector<Customer>::iterator it = customers.begin();
    while(it != customers.end()){
      if((*it).name == name){
        customers.erase(it);
        return;
      }
      it++;
    }
    std::cout<<"Customer "<<name<<" cannot found!"<<std::endl;
}

void searchAndEdit(){
    std::string name;
    std::cout<<"Enter Customer name: ";
    std::cin>>name;
    std::vector<Customer>::iterator it = customers.begin();
    while(it != customers.end()){
      if((*it).name == name){
        std::cout<<"Edit "<<name<<"'s record: "<<std::endl;
        std::cout<<"Enter AccountNo: ";
        std::cin>>(*it).accountNo;
        std::cout<<"Enter Name: ";
        std::cin>>(*it).name;
        std::cout<<"Enter Address: ";
        std::cin>>(*it).address;
        std::cout<<"Enter PlotNo: ";
        std::cin>>(*it).plotNo;
        std::cout<<"Enter ContactNo: ";
        std::cin>>(*it).contactNo;
        std::cout<<"Enter Date of last payment(dd-mm-yyyy): ";
        std::cin>>(*it).lastPayment;
        std::cout<<"Enter Monthly payment: ";
        std::cin>>(*it).monthlyPayment;
        std::cout<<"Enter Account balance: ";
        std::cin>>(*it).accountBalance;
        return;
      }
      it++;
    }
    std::cout<<"Customer "<<name<<" cannot found!"<<std::endl;
}

void display(){
    std::vector<Customer>::iterator it = customers.begin();
    std::cout<<"Customers: "<<std::endl;
    while(it != customers.end()){
      displayCustomer(*it);
      std::cout<<"-----------------------------"<<std::endl;
      it++;
    }
}

void outstandingRecords(){
    std::vector<Customer>::iterator it = customers.begin();
    std::cout<<"Outstanding records: "<<std::endl;
    while(it != customers.end()){
      if((*it).monthlyPayment >= 200){
        std::cout<<" AccountNo: "<<(*it).accountNo<<" Name: "<<(*it).name
        <<" Balance will be: "<<(*it).monthlyPayment * 2<<std::endl;
      }
      it++;
    }
}

private:
void displayCustomer(const Customer& c){
    std::cout<<" AccountNo: "<<c.accountNo<<std::endl;
    std::cout<<" Name: "<<c.name<<std::endl;
    std::cout<<" Address: "<<c.address<<std::endl;
    std::cout<<" PlotNo: "<<c.plotNo<<std::endl;
    std::cout<<" ContactNo: "<<c.contactNo<<std::endl;
    std::cout<<" Date of Last payment: "<<c.lastPayment<<std::endl;
    std::cout<<" Monthly payment: "<<c.monthlyPayment<<std::endl;
    std::cout<<" Account Balance: "<<c.accountBalance<<std::endl;
}

private:
std::vector<Customer> customers;
};

int main()
{
int choice;
CustomerModule customer;
while(true){
    std::cout<<"*** Customer Module ***"<<std::endl;
    std::cout<<"1 New Record"<<std::endl;
    std::cout<<"2 Search Record"<<std::endl;
    std::cout<<"3 Delete Record"<<std::endl;
    std::cout<<"4 Edit Record"<<std::endl;
    std::cout<<"5 List Records"<<std::endl;
    std::cout<<"6 Outstanding records"<<std::endl;
    std::cout<<"7 Exit"<<std::endl;
    std::cout<<"Enter option: ";
    std::cin>>choice;
    switch(choice){
      case 1:
        customer.addNewCustomer();
        break;
      case 2:
        customer.searchAndDisplay();
        break;
      case 3:
        customer.searchAndDelete();
        break;
      case 4:
        customer.searchAndEdit();
        break;
      case 5:
        customer.display();
        break;
      case 6:
        customer.outstandingRecords();
        break;
      case 7:
        return 0;
      default:
        std::cout<<"Invalid choice!"<<std::endl;
        break;
    }
}
return 0;
}