#include<iostream>
#include<conio.h>
//using namespace std;
int main()
{
char name[30], pizza1[]="Chicken Fazita" ,pizza2[]="Chicken Bar BQ" ,pizza3[]="Peri Peri" ,pizza4[]="Creamy Max", roll1[]="Chicken Chatni Roll", roll2[]="Chicken Mayo Roll", roll3[]="Veg Roll With Fries",bur1[]="Zinger Burger",bur2[]="Chicken Burger",bur3[]="Beef Burger";
char sand1[]="Club Sandwich", sand2[]="Chicken Crispy Sandwich", sand3[]="Extream Veg Sandwich";
char bir1[]="Chicken Biryani", bir2[]="Prawn Biryani", bir3[]="Beef Biryani",gotostart ;
int choice=0,pchoice,pchoice1, quantity;// time=40;
beginning:
system("CLS");
cout<<"\t\t\t----------Carl's Jr. Fast Food-----------\n\n";
cout<<"Please Enter Your Name: ";
cin.getline(name, 20);
cout<<"Hello "<<name<<"\n\nWhat would you like to order?\n\n";

cout<<"\t\t\t\t--------Menu--------\n\n";

cout<<"1) Pizzas\n";
cout<<"2) Burgers\n";
cout<<"3) Sandwich\n";
cout<<"4) Rolls\n";
cout<<"5) Biryani\n\n";
cout<<"\nPlease Enter your Choice: ";
cin>>choice;

if(choice==1)
{
cout<<"\n1) "<<pizza1<<"\n";
cout<<"2) "<<pizza2<<"\n";
cout<<"3) "<<pizza3<<"\n";
cout<<"4) "<<pizza4<<"\n";
cout<<"\nPlease Enter which Flavour would you like to have?:";
cin>>pchoice;
if(pchoice>=1 && pchoice<=5)
{
cout<<"\n1) Small Rs.250\n"<<"2) Regular Rs.500\n"<<"3) Large Rs.900\n";
cout<<"\nChoose Size Please:";
cin>>pchoice1;
if(pchoice1>=1 && pchoice1<=3)
cout<<"\nPlease Enter Quantity: ";
cin>>quantity;
switch(pchoice1)
{
case 1: choice = 250*quantity;
break;

case 2: choice = 500*quantity;
break;

case 3: choice = 900*quantity;
break;

     }
system("CLS");
switch (pchoice1)
{
case 1:
cout<<"\t\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<pizza1;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\n\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 2:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<"  "<<pizza2;
cout<<"\nYour Total Bill is "<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 3:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<pizza3;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 4:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<pizza4;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;

}
cout<<"Would you like to order anything else? Y / N:";
cin>>gotostart;
if(gotostart=='Y' || gotostart=='y')
{
 goto beginning;
 //return 0;
}

}

}

else if(choice==2)
{
cout<<"\n1 "<<bur1<<" Rs.180"<<"\n";
cout<<"2 "<<bur2<<" Rs.150"<<"\n";
cout<<"3 "<<bur3<<" Rs.160"<<"\n";
//cout<<"4 "<<pizza4<<"\n";
cout<<"\nPlease Enter which Burger you would like to have?: ";
cin>>pchoice1;
if(pchoice1>=1 && pchoice1<=3)
{
cout<<"\nPlease Enter Quantity: ";
cin>>quantity;
switch(pchoice1)
{
case 1: choice = 180*quantity;
break;

case 2: choice = 150*quantity;
break;

case 3: choice = 160*quantity;
break;

}
system("CLS");
switch (pchoice1)
{
case 1:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<bur1;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food \n";
break;
case 2:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<"  "<<bur2;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Pizza\n";
break;
case 3:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<bur3;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;

}
cout<<"\nWould you like to order anything else? Y / N:";
cin>>gotostart;
if(gotostart=='Y' || gotostart=='y')
{
 goto beginning;
 //return 0;
}

 }
}
else if(choice==3)
{
cout<<"\n1  "<<sand1<<" Rs.240"<<"\n";
cout<<"2  "<<sand2<<" Rs.160"<<"\n";
cout<<"3  "<<sand3<<" Rs.100"<<"\n";
//cout<<"4 "<<pizza4<<"\n";
cout<<"\nPlease Enter which Sandwich you would like to have?:";
cin>>pchoice1;
if(pchoice1>=1 && pchoice1<=3)
{
cout<<"\nPlease Enter Quantity: ";
cin>>quantity;
switch(pchoice1)
{
case 1: choice = 240*quantity;
break;

case 2: choice = 160*quantity;
break;

case 3: choice = 100*quantity;
break;

}
system("CLS");
switch (pchoice1)
{
case 1:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<sand1;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 2:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<"  "<<sand2;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 3:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<sand2;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;

}
cout<<"Would you like to order anything else? Y / N:";
cin>>gotostart;
if(gotostart=='Y' || gotostart=='y')
{
 goto beginning;
 //return 0;
}
}
}

else if(choice==4)
{
cout<<"\n1 "<<roll1<<" Rs.150"<<"\n";
cout<<"2 "<<roll2<<" Rs.100"<<"\n";
cout<<"3 "<<roll3<<" Rs.120"<<"\n";
//cout<<"4 "<<pizza4<<"\n";
cout<<"\nPlease Enter which you would like to have?: ";
cin>>pchoice1;
if(pchoice1>=1 && pchoice1<=3)
{
cout<<"\nHow Much Rolls Do you want: ";
cin>>quantity;
switch(pchoice1)
{
case 1: choice = 150*quantity;
break;

case 2: choice = 100*quantity;
break;

case 3: choice = 120*quantity;
break;

}
system("CLS");
switch (pchoice1)
{
case 1:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<roll1;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 2:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<"  "<<roll2;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 3:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<roll3;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;

}

 }
}
else if(choice==5)
{
cout<<"\n1 "<<bir1<<" Rs.160"<<"\n";
cout<<"2 "<<bir2<<" Rs.220"<<"\n";
cout<<"3 "<<bir3<<" Rs.140"<<"\n";
//cout<<"4 "<<pizza4<<"\n";
cout<<"\nPlease Enter which Biryani you would like to have?:";
cin>>pchoice1;
if(pchoice1>=1 && pchoice1<=3)
{
cout<<"\nPlease Enter Quantity: ";
cin>>quantity;
switch(pchoice1)
{
case 1: choice = 160*quantity;
break;

case 2: choice = 220*quantity;
break;

case 3: choice = 140*quantity;
break;

}
system("CLS");
switch (pchoice1)
{
case 1:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<bir1;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food \n";
break;
case 2:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<"  "<<bir2;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;
case 3:
cout<<"\t\t--------Your Order---------\n";
cout<<""<<quantity<<" "<<bir3;
cout<<"\nYour Total Bill is"<<choice<<"\nYour Order Will be delivered in 40 Minutes";
cout<<"\nThank you For Ordering From Carl's Jr. Fast Food\n";
break;

}
cout<<"Would you like to order anything else? Y / N:";
cin>>gotostart;
if(gotostart=='Y' || gotostart=='y')
{
 goto beginning;
 //return 0;
}
}
}

else
{
system("CLS");
cout<<"Please Select Right Option: \n";
cout<<"Would You like to Start the program again? Y / N: " ;
cin>>gotostart;

if(gotostart=='Y' || gotostart=='y')
{
 goto beginning;
 //return 0;
}
}

     getch();
}

Hi there,

This is a lot of code (which I assume is part of a homework assignment?) However, you aren’t specifying what it’s supposed to do, what error messages you’re getting, what’s not working, what you’re stuck with, etc.

Please be as detailed as possible. Help us to help you :)

It would also help if it were properly indented and commented.

I am suppose to create a POS system similar to a restaurant, milk tea shops, or coffee shops. I need to add 'Strings' in it as well. The error starts in the 12th line and it says in dev c++ that "[ERROR] 'cin' was not declared in the scope"

It looks to me that you should really be learning about debugging. Especially with c++. Most compilers stop reporting at the first error and in your code, your compiler will report a lot of errors. Especially with using namespace std; commented out. While it's good to see you trying to do without that statement, you have to remember that accessing any function or member of the std namespace, you need to preface it with std::.

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