Question: This is a simple hotel management program of C++. Below real code is given of the program. Draw a flowchart and block diagram of the
#include
#include
#include
#include
#include
#include
using namespace std;
//START OF CLASS
class hotel
{
int room_no;
char name[30];
char address[50];
char phone[10];
public:
void main_menu(); //to display the main menu
void add(); //to book a room
void display(); //to display the customer record
void rooms(); //to display allotted rooms
void edit(); //to edit the customer record
int check(int); //to check room status
void modify(int); //to modify the record
void delete_rec(int); //to delete the record
void bill(int); //for the bill of a record
};
//END OF CLASS
//FOR DISPLAYING MAIN MENU
void hotel::main_menu()
{
int choice;
while(choice!=5)
{
system("cls");
cout<>
cout<"ttt simple="" hotel="" management="">
cout<"ttt *="" main="" menu="">
cout<>
cout<"tt1.book a="">
cout<"tt2.customer>
cout<"tt3.rooms>
cout<"tt4.edit>
cout<>
cout<"tttenter your="" choice:="">
cin>>choice;
switch(choice)
{
case 1: add();
break;
case 2: display();
break;
case 3: rooms();
break;
case 4: edit();
break;
case 5: break;
default:
{
cout<"tttwrong>
cout<"ttpress any="" key="" to="">
getch();
}
}
}
}
//END OF MENU FUNCTION
//FUNCTION FOR BOOKING OF ROOM
void hotel::add()
{
system("cls");
int r,flag;
ofstream fout("Record.dat",ios::app);
cout<" enter="" customer="">
cout<">
cout<" room="" no:="">
cout<" total="" no.="" of="" rooms="" -="">
cout<" ordinary="" rooms="" from="" 1="" -="">
cout<" luxuary="" rooms="" from="" 31="" -="">
cout<" royal="" rooms="" from="" 46="" -="">
cout <" enter="" the="" room="" no.="" you="" want="" to="" stay="" in="" :-=""><>
cin>>r;
flag=check(r);
if(flag)
cout<" sorry..!!!room="" is="" already="">
else
{
room_no=r;
cout<" name:="">
cin>>name;
cout<" address:="">
cin>>address;
cout<" phone="" no:="">
cin>>phone;
fout.write((char*)this,sizeof(hotel));
cout<" room="" is="">
}
cout<" press="" any="" key="" to="">
getch();
fout.close();
}
//END OF BOOKING FUNCTION
//FUNCTION FOR DISPLAYING A PURTICULAR CUSTOMER`S RECORD
void hotel::display()
{
system("cls");
ifstream fin("Record.dat",ios::in);
int r,flag;
cout<" enter="" room="" no.="" for="" a="" particular="" customer`s="" details="" :-=""><>
cin>>r;
while(!fin.eof())
{
fin.read((char*)this,sizeof(hotel));
if(room_no==r)
{
system("cls");
cout<" cusromer="">
cout<">
cout<" room="" no:=""><>
cout<" name:=""><>
cout<" address:=""><>
cout<" phone="" no:=""><>
flag=1;
break;
}
}
if(flag==0)
cout<" sorry="" room="" no.="" not="" found="" or="">
cout<" press="" any="" key="" to="">
getch();
fin.close();
}
//END OF DISPLAY FUNCTION
//FUNCTION TO DISPLAY ALL ROOMS OCCUPIED
void hotel::rooms()
{
system("cls");
ifstream fin("Record.dat",ios::in);
cout<"tt list="" of="" rooms="">
cout<"tt>
cout<" room="" no.amettaddressttttphone="">
while(!fin.eof())
{
fin.read((char*)this,sizeof(hotel));
cout<"><><><>
cout<><><><>
}
cout<"ttpress any="" key="" to="">
getch();
fin.close();
}
//FUNCTION FOR EDITING RECORDS AND FOR BILL
void hotel::edit()
{
system("cls");
int choice,r;
cout<" edit="">
cout<">
cout<" 1.modify="" customer="">
cout<" 2.delete="" customer="">
cout<" 3.="" bill="" of="">
cout<" enter="" your="" choice:="">
cin>>choice;
system("cls");
cout<" enter="" room="" no:="" "="">
cin>>r;
switch(choice)
{
case 1: modify(r);
break;
case 2: delete_rec(r);
break;
case 3: bill(r);
break;
default: cout<" wrong="">
}
cout<" press="" any="" key="" to="">
getch();
}
int hotel::check(int r)
{
int flag=0;
ifstream fin("Record.dat",ios::in);
while(!fin.eof())
{
fin.read((char*)this,sizeof(hotel));
if(room_no==r)
{
flag=1;
break;
}
}
fin.close();
return(flag);
}
//FUNCTION TO MODIFY CUSTOMERS RECORD
void hotel::modify(int r)
{
long pos,flag=0;
fstream file("Record.dat",ios::in|ios::out|ios::binary);
while(!file.eof())
{
pos=file.tellg();
file. Read((char*)this,sizeof(hotel));
if(room_no==r)
{
cout<" enter="" new="">
cout<">
cout<" name:="">
cin>>name;
cout<" address:="">
cin>>address;
cout<" phone="" no:="">
cin>>phone;
file.seekg(pos);
file. Write((char*)this,sizeof(hotel));
cout<" record="" is="">
flag=1;
break;
}
}
if(flag==0)
cout<" sorry="" room="" no.="" not="" found="" or="">
file.close();
}
//END OF MODIFY FUNCTION
//FUNCTION FOR DELETING RECORD
void hotel::delete_rec(int r)
{
int flag=0;
char ch;
ifstream fin("Record.dat",ios::in);
ofstream fout("temp.dat",ios::out);
while(!fin.read())
{
fin.read((char*)this,sizeof(hotel));
if(room_no==r)
{
cout<" name:=""><>
cout<" address:=""><>
cout<" pone="" no:=""><>
cout<" do="" you="" want="" to="" delete="" this="" record(y/n):="">
cin>>ch;
if(ch=='n')
fout.write((char*)this,sizeof(hotel));
flag=1;
}
else
fout.write((char*)this,sizeof(hotel));
}
fin.close();
fout.close();
if(flag==0)
cout<" sorry="" room="" no.="" not="" found="" or="">
else
{
remove("Record.dat");
rename("temp.dat","Record.dat");
}
}
//END OF DELETE FUNCTION
//FUNCTION FOR CUSTOMER`S BILL
void hotel::bill(int r)
{
hotel h1;
ifstream f1;
f1.open("record.dat",ios::in|ios::binary);
if(!f1)
cout<"cannot>
else
{
f1.read((char*)&h1,sizeof (hotel));
while(f1)
{
f1.read((char*)&h1,sizeof(hotel));
}
if (h1.room_no == r)
{
if(h1.room_no>=1&&h1.room_no<>
cout<"your bill="">
else if (h1.room_no>=35&&h1.room_no<>
cout<"your bill="5000"">
else
cout<"your bill="">
}
else
{ cout<"room no.="" not="">
}
f1.close();
getch();
}
//END OF BILLING FUNCTION
//START OF MAIN PROGARM
int main()
{
hotel h;
system("cls");
cout<>
cout<"tt* hotel="" management="" project="">
cout<>
cout<"ttdeveloped>
cout<"t g.="">
cout<"ttttpress any="" key="" to="">
getch();
h.main_menu();
return 0;
}
//END OF MAIN PROGRAM
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