Question

Imagine a tollbooth at a bridge. Cars passing by the booth are expected to pay a 50 cent

toll. Mostly they do, but sometimes a car goes by without paying. The tollbooth keeps

track of the number of cars that have gone by, and of the total amount of money collected.

Model this tollbooth with a class called tollBooth. The two data items are a type

unsigned int to hold the total number of cars, and a type double to hold the total amount

of money collected. A constructor initializes both of these to 0. A member function called

payingCar() increments the car total and adds 0.50 to the cash total. Another function,

called nopayCar(), increments the car total but adds nothing to the cash total. Finally, a

member function called display() displays the two totals.

Answer 1

code for the above problem given below:

#include<iostream>
using namespace std;
class tollBooth
{  
    private:                                              // data items declared as required
    unsigned int car;
    double money;
    
    public:
    tollBooth(): car(0), money(0) {}           // constructor calling to initialize car and money to 0
    void payingCar()                   // payingCar add 0.50 to money and add 1 to car inorder to count the cars passes by       
    {
         car=car+1;
         money=money+0.50;                                
    }
    void nopayCar()                   //  car passes but do not pay . therefore no money added 
    {
         car=car+1;
         money=money+0;
    }
    void display()
    {
          cout<<"\n Total Money Collected On TollBooth = "<<money<<endl;
          cout<<" Total cars On TollBooth = "<<car<<endl;
    }
    
};
 
int main()
{
       char n;
       tollBooth d;
       cout<<"Enter 1 For Toll Paying Cars and 2 For Non-Toll Paying Cars = ";
       
        cin>>n;
        switch (n)                                    // if entered 1 than payingCar information display else nopaying car info display
           {
               case '1':
                         d.payingCar();         // call to member functoin of tollBooth class
                         d.display();
                        
                         break;
                case '2':
                         d.nopayCar();
                         d.display();
                         
                         break;
           }
return 0;
}

sample output: