string subChoice ="";
getline(cin,subChoice);Can anybody help me???
What these lines do? and how are to be used?
Exile_082 0 Newbie Poster
Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster
The first line just declares a variable of type std::string
The second line causes all keyboard input up to the '\n' (carriage return) to be sent to the string object. So if you typed "Hello World" <Return key> then the string subChoice would contain "Hello World".
Copy and paste this into your compiler's editor, compile it, and run it to see for yourself what it does
#include <iostream>
#include <string>
int main()
{
std::string subChoice;
std::cout << "Enter some text\n";
std::getline(std::cin, subChoice);
std::cout << "You entered \"" << subChoice << "\"\n";
} Exile_082 0 Newbie Poster
Sorry but im a bit new with these C++ thing and i only know #include<iostream.h>
what's #include<string> do???
im really sorry for the inconvinience sir i just want to learn^-^
Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster
You obviously need to read some c++ tutorials. iostream.h is long obsolete and should no longer be used. Current c++ header files do not have .h extension <string> and <iostream>
<string> is the header file that declares the c++ std::string class
<iostream> declares std::cin, std::cout, etc.
There are quite a few header files, and you will learn them by reading books and/or online tutorials. Here are a few ebooks you can download for free.
Exile_082 0 Newbie Poster
thank you very much for your kindness sir i'll study these hard^-^
Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster
Exile_082 0 Newbie Poster
I got em
your help is pretty much appreciated
Exile_082 0 Newbie Poster
#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
int main()
{
int choice;
int beefQuant=0;
int pkbfQuant=0;
int veggQuant=0;
int gdpgQuant=0;
int drnkQuant=0;
double subTotal;
double tax;
double totalDue;
double beefTotal=0;
double pgbfTotal=0;
double veggTotal=0;
double gdpgTotal=0;
double drnkTotal=0;
cout<<"Welcome to Abisado’s Delights"<<endl;
cout<<"Please choose what you wanna eat from the selection by entering the item number on the left"<<endl;
cout<<endl;
cout<<"..................................MENU........................................"<<endl;
cout<<"Item# Description--------------------------------------------------------Price"<<endl;
cout<<"______________________________________________________________________________"<<endl;
cout<<"[1] Beefy Experience: Beef Teriyaki w/ Rice...............................120.75"<<endl;
cout<<endl;
cout<<"[2] Pork and Beef Supreme: Beef Strips w/ Rice and Pork Buns..............90.25"<<endl;
cout<<endl;
cout<<"[3] Veggie Surprise: Fresh Salad with Onion Sauerkraut......................100.00"<<endl;
cout<<endl;
cout<<"[4] All Time Family Favorite: Grilled Pig w/ Rice and Chili Sauce for 12 Servings .....395.00"<<endl;
cout<<endl;
cout<<"[5] DRINKS: one-size and free refills......................................85"<<endl;
cout<<endl;
while(choice=1||2||3||4||5){
cin>>choice;
}
switch (choice)
{
case 1:
beefQuant=beefQuant+1;
beefTotal=beefQuant*120.75;
break;
case 2:
pkbfQuant=pkbfQuant+1;
pkbfTotal=pkbfQuant*90.25;
break;
case 3:
veggQuant=veggQuant+1;
veggTotal=veggQuant*100.00;
break;
case 4:
gdpgQuant=gdpgQuant+1;
gdpgTotal=gdpgQuant*395.00;
break;
case 5:
drnkQuant=drnkQuant+1;
drnkTotal=drnkQuant*85.00;
break;
default:
system("cls");
cout<<endl;
cout<<"You have ordered the following:"<<endl;
cout<<"___________________"<<endl;
if(beefQuant!=0){
cout<<beefQuant<<" #1 "<<beefTotal<<endl;
}
if(pkbfQuant!=0){
cout<<pkbfQuant<<" #2 "<<pkbfTotal<<endl;
}
if(veggQuant!=0){
cout<<veggQuant<<" #3 "<<veggTotal<<endl;
}
if(gdpgQuant!=0){
cout<<gdpgQuant<<" #4 "<<gdpgTotal<<endl;
}
if(drnkQuant!=0){
cout<<drnkQuant<<" #5 "<<drnkTotal<<endl;
}
cout<<fixed<<setprecision(2)<<endl;
cout<<"___________________"<<endl;
subTotal=(beefTotal+pgbfTotal+veggTotal+gdpgTotal+drnkTotal);
tax=(subTotal*.12);
totalDue=(subTotal+tax);
cout<<"Subtotal: "<<subTotal<<endl;
cout<<"Tax: "<<tax<<endl;
cout<<"___________________"<<endl;
cout<<"Total Due "<<totalDue<<endl;
}
{
return 0;
}Sir how's this??? can you help me again???? im a bit confused.
The food is a little weird but disregard that please hahah^-^
Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster
>>while(choice=1||2||3||4||5){
Can't do it like that while( choice >= 1 && choice <= 5)
Exile_082 0 Newbie Poster
Sir there is an error here that says
C:\Users\cs10l-b7-23\Desktop\Project Draft.cpp(92) : fatal error C1004: unexpected end of file found
what does that mean
Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster
It could mean several things. Most likely your program has mismatched { and } braces.
Exile_082 0 Newbie Poster
#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
int main()
{
int choice;
int beefQuant=0;
int pkbfQuant=0;
int veggQuant=0;
int gdpgQuant=0;
int drnkQuant=0;
double subTotal;
double tax; //this is double because there are items in the menu that has a decimal value representing cents
double totalDue;
double beefTotal=0;
double pkbfTotal=0;
double veggTotal=0;
double gdpgTotal=0;
double drnkTotal=0;
cout<<"Welcome to Abisado’s Delights"<<endl;
cout<<"Please choose from the available menu by using the item number on the left"<<endl;
cout<<endl;
cout<<"..................................MENU........................................"<<endl; // this menu as i said in the project description must be updated regularly from the available menu to the price range of each
cout<<"Item# Description--------------------------------------------------------Price"<<endl; // the food is kinda odd but nevermind that its just an example
cout<<"______________________________________________________________________________"<<endl;
cout<<"[1]Beefy Experience:Beef Teriyaki w/ Rice...............................190.75"<<endl;
cout<<endl;
cout<<"[2]Pork and Beef Supreme:Beef Strips w/ Rice and Pork Buns..............160.25"<<endl;
cout<<endl;
cout<<"[3]Veggie Surprise:Fresh Salad with Onion Sauerkraut....................125.00"<<endl;
cout<<endl;
cout<<"[4]Family Meal:Grilled Pig w/ Rice and Chili Sauce for 12 Servings .....470.00"<<endl;
cout<<endl;
cout<<"[5]DRINKS:One-size and free refills......................................85.00"<<endl;
cout<<endl;
do{
cin>>choice;
}while( choice >= 1 && choice <= 5) ;
switch (choice)
{
case 1:
beefQuant=beefQuant+1; //the acronyms i used is a bit odd you can use any acronym you want w/c ever suits you best
beefTotal=beefQuant*120.75;
break;
case 2:
pkbfQuant=pkbfQuant+1;
pkbfTotal=pkbfQuant*90.25;
break;
case 3:
veggQuant=veggQuant+1;
veggTotal=veggQuant*100.00;
break;
case 4:
gdpgQuant=gdpgQuant+1;
gdpgTotal=gdpgQuant*395.00;
break;
case 5:
drnkQuant=drnkQuant+1;
drnkTotal=drnkQuant*85.00;
break;
default:
system("cls");
cout<<endl;
cout<<"You have ordered the following:"<<endl;
cout<<"___________________"<<choice<<endl;
if(beefQuant!=0){
cout<<beefQuant<<" #1 "<<beefTotal<<endl;
}
if(pkbfQuant!=0){
cout<<pkbfQuant<<" #2 "<<pkbfTotal<<endl;
}
if(veggQuant!=0){
cout<<veggQuant<<" #3 "<<veggTotal<<endl;
}
if(gdpgQuant!=0){
cout<<gdpgQuant<<" #4 "<<gdpgTotal<<endl;
}
if(drnkQuant!=0){
cout<<drnkQuant<<" #5 "<<drnkTotal<<endl;
}
cout<<fixed<<setprecision(2)<<endl;
cout<<"___________________"<<endl;
subTotal=(beefTotal+pkbfTotal+veggTotal+gdpgTotal+drnkTotal);
tax=(subTotal*.12); // this program is set to the current tax rate implemented by the Philippine Government any changes must also be updated if any
totalDue=(subTotal+tax);
cout<<"Subtotal: "<<subTotal<<endl;
cout<<"Tax: "<<tax<<endl;
cout<<"___________________"<<endl;
cout<<"Total Due "<<totalDue<<endl;
}
return 0;
}It runs but it once you input something it does nothing
i just kept on choosing and nothing happens nid help masters
Fbody 682 Posting Maven Featured Poster
It's because all your response outputs are part of the default case of your switch. You only see them if you make an invalid selection. In addition, you only see them if you have ordered at least one (1) of the particular item reported. However, the structure of the program precludes this because you don't have it contained within a loop. If you place a valid order, the order is logged and the program ends. If you attempt to place an invalid order, the program catches it, but doesn't report the error (doesn't provide any feedback). Because there is no feedback, it looks "hung" even though it's not, it's just waiting for a new menu selection.
Run the program and enter a 6. The program will look "stuck" because the input loop is waiting for another input, but doesn't say so.
You need to do at least 2 things to make a program such as this function properly:
1. Either expand the scope of your do-while loop to include more than just your input statement or add another loop of some sort that includes all of your input and output statements.
2. Move Lines 68-93 out of the switch default so that they run at the appropriate time(s).
Keep an algorithm similar to this in mind:
//pseudocode
welcome user
begin ordering loop
begin menuInput loop
display menu
get user input
if valid input
if new food ordered
calculate new user total
exit menuInput loop
else if end order selected
exit menuInput loop
else
inform user of error
end menuInput loop
display user total
ask if would like to add to order
end ordering loop
display user final total
end programYou already have most of this covered. You just need to re-arrange the parts of your code to make the loops and switch work properly.
Exile_082 0 Newbie Poster
i dont get it??? sorry im a newbie
Exile_082 0 Newbie Poster
can you explain a little further??? pls
kes166 37 Practically a Master Poster
You need to include the switch statement in your do while loop otherwise, you will never exit the do while loop.
Also, with your switch statement, everything in your default will never run.
//None of this code will ever run. If you enter a number to break your do while loop, none of your other cases will run. Your default doesn't have a break in it.
default:
system("cls");
cout<<endl;
cout<<"You have ordered the following:"<<endl;
cout<<"___________________"<<choice<<endl;
if(beefQuant!=0){
cout<<beefQuant<<" #1 "<<beefTotal<<endl;
}
if(pkbfQuant!=0){
cout<<pkbfQuant<<" #2 "<<pkbfTotal<<endl;
}
if(veggQuant!=0){
cout<<veggQuant<<" #3 "<<veggTotal<<endl;
}
if(gdpgQuant!=0){
cout<<gdpgQuant<<" #4 "<<gdpgTotal<<endl;
}
if(drnkQuant!=0){
cout<<drnkQuant<<" #5 "<<drnkTotal<<endl;
}
cout<<fixed<<setprecision(2)<<endl;
cout<<"___________________"<<endl;
subTotal=(beefTotal+pkbfTotal+veggTotal+gdpgTotal+drnkTotal);
tax=(subTotal*.12);
// this program is set to the current tax rate implemented by the Philippine Government any changes must also be updated if any
totalDue=(subTotal+tax);
cout<<"Subtotal: "<<subTotal<<endl;
cout<<"Tax: "<<tax<<endl;
cout<<"___________________"<<endl;
cout<<"Total Due "<<totalDue<<endl; Exile_082 0 Newbie Poster
oh i get it thank you very much sir
Exile_082 0 Newbie Poster
got a little confused again as i compiled and run the edited version of this one instead of having to stay inside the loop it exits whenever i input an invalid value. hahhaa gonna practice some more bosses
Fbody 682 Posting Maven Featured Poster
I have some suspicions, but you'll have to post your current code so that we know what we're dealing with.
madmonkey 0 Newbie Poster
DELETED
Exile_082 0 Newbie Poster
#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
int main()
{
int choice;
int beefQuant=0;
int pkbfQuant=0;
int veggQuant=0;
int gdpgQuant=0;
int drnkQuant=0;
double subTotal;
double tax; //this is double because there are items in the menu that has a decimal value representing cents
double totalDue;
double beefTotal=0;
double pkbfTotal=0;
double veggTotal=0;
double gdpgTotal=0;
double drnkTotal=0;
cout<<"Welcome to Abisado’s Delights"<<endl;
cout<<"Please choose from the available menu by using the item number on the left"<<endl;
cout<<endl;
cout<<"..................................MENU........................................"<<endl; // this menu as i said in the project description must be updated regularly from the available menu to the price range of each
cout<<"Item# Description--------------------------------------------------------Price"<<endl; // the food is kinda odd but nevermind that its just an example
cout<<"______________________________________________________________________________"<<endl;
cout<<"[1]Beefy Experience:Beef Teriyaki w/ Rice...............................190.75"<<endl;
cout<<endl;
cout<<"[2]Pork and Beef Supreme:Beef Strips w/ Rice and Pork Buns..............160.25"<<endl;
cout<<endl;
cout<<"[3]Veggie Surprise:Fresh Salad with Onion Sauerkraut....................125.00"<<endl;
cout<<endl;
cout<<"[4]Family Meal:Grilled Pig w/ Rice and Chili Sauce for 12 Servings .....470.00"<<endl;
cout<<endl;
cout<<"[5]DRINKS:One-size and free refills......................................85.00"<<endl;
cout<<endl;
do{
cin>>choice;
switch (choice)
{
case 1:
beefQuant=beefQuant+1; //the acronyms i used is a bit odd you can use any acronym you want w/c ever suits you best
beefTotal=beefQuant*190.75;
break;
case 2:
pkbfQuant=pkbfQuant+1;
pkbfTotal=pkbfQuant*160.25;
break;
case 3:
veggQuant=veggQuant+1;
veggTotal=veggQuant*125.00;
break;
case 4:
gdpgQuant=gdpgQuant+1;
gdpgTotal=gdpgQuant*470.00;
break;
case 5:
drnkQuant=drnkQuant+1;
drnkTotal=drnkQuant*85.00;
break;
default:
cout<<"invalid input"<<endl;
break;}
}while(choice>=1&&choice<=5);
{
system("cls");
cout<<"You have ordered the following:"<<endl;
cout<<"___________________"<<choice<<endl;
if(beefQuant!=0){
cout<<beefQuant<<" #1 "<<beefTotal<<endl;
}
if(pkbfQuant!=0){
cout<<pkbfQuant<<" #2 "<<pkbfTotal<<endl;
}
if(veggQuant!=0){
cout<<veggQuant<<" #3 "<<veggTotal<<endl;
}
if(gdpgQuant!=0){
cout<<gdpgQuant<<" #4 "<<gdpgTotal<<endl;
}
if(drnkQuant!=0){
cout<<drnkQuant<<" #5 "<<drnkTotal<<endl;
}
cout<<fixed<<setprecision(2)<<endl;
cout<<"___________________"<<endl;
subTotal=(beefTotal+pkbfTotal+veggTotal+gdpgTotal+drnkTotal);
tax=(subTotal*.12); // this program is set to the current tax rate implemented by the Philippine Government any changes must also be updated if any
totalDue=(subTotal+tax);
cout<<"Subtotal: "<<subTotal<<endl;
cout<<"Tax: "<<tax<<endl;
cout<<"___________________"<<endl;
cout<<"Total Due "<<totalDue<<endl;
}
return 0;
}hahahaha here's what my teammate did on our project hahaha wth!!!!! nid help
Exile_082 0 Newbie Poster
masters nid help with the codes above there's something missing. something's wrong nid help asap
Fbody 682 Posting Maven Featured Poster
What exactly is missing? I'm guessing you need the menu to display again, but it's not.
HINT: Your loop is still too small, it should start sooner, and end later.
Exile_082 0 Newbie Poster
i dont get it completely
Fbody 682 Posting Maven Featured Poster
What is there that's so difficult to get? If you're having trouble understanding something, tell us what you don't understand. "I don't get it completely" is a completely worthless statement.
If part of the program needs to repeat, it needs to be in your loop. If it's not repeating, you didn't put it in your loop, figure out how to add it to your loop. It's really that simple.
All you need to do is move the do part of your loop up to an appropriate location, and the while part of the loop down to an appropriate location.
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