Need some help with variables..
Hi , im new in learning c++
i need few thing to clarify . I know variables if it was declare one by one , but this coding is confusing..
im confused , what is the input variables for this coding ?
is it choice or userinput() ?
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#include <iostream>
using namespace std;
int total1 = 0, total2 = 0, total3 = 0;
float pItem1 , pItem2 , pItem3;
char option ;
char repeat;
char userInput();
char printSummary();
int main()
{
pItem1=1.5 ;
pItem2=3 ;
pItem3=2 ;
{
do
{
cout<<"\n--------------------------"<<endl;
cout<<"Welcome To Cashier System"<<endl;
cout<<"--------------------------"<<endl;
cout<<"[1] ice cream - RM "<<pItem1<<endl;
cout<<"[2] cake - RM "<<pItem2<<endl;
cout<<"[3] fruit juice - RM "<<pItem3<<endl;
cout<<"[4] print summary"<<endl;
cout<<"[5] exit order & print receipt"<<endl<<endl;
userInput();
cout<<"Do you want to retake your order ? : ";
cin>>repeat;
}
while
(repeat=='y'||repeat=='Y');
{
cout<<"Bye !!!";
}
}
}
char userInput() {
char choice;
int t1 = 0, t2 = 0, t3 = 0;
float tPrice = 0;
int x = 1;
for (int i=0;i<=3;i++)
{
cout<<"Enter your choice : ";
cin>>choice;
if (choice == '1') {
if (t1 == 0) {
t1 = t1 + 1;
total1 = total1 + 1;
}
else {
cout<<"Ice cream already taken.\nPlz select another item."<<endl;
i = i -1 ;
}
}
else if (choice == '2') {
if (t2 == 0) {
t2 = t2 + 1;
total2 = total2 + 1;
}
else {
cout<<"Cake already taken.\nPlz select another item."<<endl;
i = i -1 ;
}
}
else if (choice == '3') {
if (t3 == 0) {
t3 = t3 + 1;
total3 = total3 + 1;
}
else {
cout<<"Fruit juice already taken.\nPlz select another item."<<endl;
i = i -1 ;
}
}
else if (choice == '4') {
printSummary();
break;
}
else if (choice == '5') {
break;
}
}
//end for
cout<<"\nReceipt"<<endl;
cout<<"-------"<<endl;
if (t1 == 1) {
cout<<x<<". Ice cream - RM "<<pItem1<<endl;
tPrice = tPrice + pItem1;
x = x + 1;
}
if (t2 == 1) {
cout<<x<<". Cake - RM "<<pItem2<<endl;
tPrice = tPrice + pItem2;
x = x + 1;
}
if (t3 == 1) {
cout<<x<<". Fruit juice - RM "<<pItem3<<endl;
tPrice = tPrice + pItem3;
x = x + 1;
}
cout<<"Total price : RM "<<tPrice<<endl;
cout<<"\nThank you for using cashier system.\n\n"<<endl;
}
char printSummary() {
cout<<"\nSummary"<<endl;
cout<<"-------"<<endl;
cout<<"Total ice cream sale : RM "<<total1 * pItem1<<endl;
cout<<"Total cake sale : RM "<<total2 * pItem2<<endl;
cout<<"Total fruit juice sale : RM "<<total3 * pItem3<<endl;
return 0;
}
|
here... choice is the input variable
userinput() is the function asking for choice three times as your food items could be maximum 3
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