Question

write a c++ program :Assume one of the companies is renting flats for people asks you to develop a small system to help them track who paid the rent fees, and who did not for the coming month. The data in this system includes: ID number of the person who rented the house, flat number , fine to be paid, tenant name, status of payment(paid or unpaid ).

The main interface of the system should be as follows:

1- Add a new rent record (Renter ID, Renter name, Flat Number, Fine, and status).

2- Display all renters’ information.

3- Search for rent information by Flat number.

4- Display all rent information that are not paid yet.

5- Exit.

When user selects 1, the system asks user to enter data of the rent record which includes: renter id, renter name, flat number, fine, and status. The data will be saved in a file.  When user selects 2: the system displays data of all rent information saved in the file.  When users selects 3, the system asks for the flat number, if there is no information saved on such flat, then a message is displayed “here is no information saved on such flat number”, otherwise, system displays all data about the rent information of that flat.  When user selects 4, the system displays data of rent records that are unpaid yet.  When user selects 5, exit the system, otherwise system returns to the main menu.

Hint: use fstream header to use the files to store the data.

Answer 1

Solution:

rent.cpp:

#include<iostream>
#include<string.h>
#include<fstream>
using namespace std;
int j=0;
struct rentRecords { //structure to store the data of rent
   int renterID;
   char renterName[20];
   int flatNumber;
   int fine;
   char status[10];
   }records[5];
  
   void addnewRecord() { //method to add rent details
   cout<<"Enter renter ID: ";
   cin>>records[j].renterID;
   cout<<"Enter renter Name: ";
   cin>>records[j].renterName;
   cout<<"Enter flat Number: ";
   cin>>records[j].flatNumber;
   cout<<"Enter fine: ";
   cin>>records[j].fine;
   cout<<"Enter the rent status: ";
   cin>>records[j].status;
   j++;
   }
  
   void displayAll() { //method to display all renters information
   for(int k=0; k<j; k++) {
   cout<<"Renter ID: "<<records[k].renterID<<"\n";
   cout<<"Renter Name: "<<records[k].renterName<<"\n";
   cout<<"Flat Number: "<<records[k].flatNumber<<"\n";
   cout<<"Fine: "<<records[k].fine<<"\n";
   cout<<"Rent status: "<<records[k].status<<"\n";
   }
   }
   void getInformation(int n) { //method to display the details of particular flat number
   int flag =0;
   for(int a =0; a<j; a++) {
   if(records[a].flatNumber == n) {
   cout<<"Renter ID: "<<records[a].renterID<<"\n";
   cout<<"Renter Name: "<<records[a].renterName<<"\n";
   cout<<"Flat Number: "<<records[a].flatNumber<<"\n";
   cout<<"Fine: "<<records[a].fine<<"\n";
   cout<<"Rent status: "<<records[a].status<<"\n";
   } else {
   flag = 1;
   }
   }
   if(flag==1) {
   cout<<"here is no information saved on such flat number."<<endl;
   }
   }
     
     
   void notPaidResults() { //method to get details of unpaid tenants
   for(int k=0; k<j; k++) {
   if(strcmp(records[k].status, "unpaid")==0) {
   cout<<"Renter ID: "<<records[k].renterID<<"\n";
   cout<<"Renter Name: "<<records[k].renterName<<"\n";
   cout<<"Flat Number: "<<records[k].flatNumber<<"\n";
   cout<<"Fine: "<<records[k].fine<<"\n";
   cout<<"Rent status: "<<records[k].status<<"\n";
   }
   }
   }
     
   int main() {
   char ch;
   while(ch!='q') {
   cout<<"1.Add new Rent Record."<<endl;
   cout<<"2.Display all renters information."<<endl;
   cout<<"3.search for rent inormation by flat number."<<endl;
   cout<<"4.Display all rent information that are not paid yet."<<endl;
   cout<<"5.Exit."<<endl;
   cout<<"Enter your choice: ";
   cin>>ch;
   fflush(stdin);
   switch(ch) {
   case '1': addnewRecord();
               break;
   case '2': displayAll();
               break;
   case '3': cout<<"Enter the flat number: ";
           int num;
           cin>>num;
           getInformation(num);
           break;
   case '4': notPaidResults();
           break;
   case '5': exit(0);
           break;
   default: cout<<"Wrong Choice! Try again."<<"\n";
               break;
   }
   }
   }

Output: