Question

Picture a car dealership. There are many different types of vehicles for sale. The salespeople know every detail about every one. But the accountants inside only care that a vehicle is getting sold. Model this system:

1. The dealer sells Hatchbacks and Sedans
2. Every vehicle has a price
3. Hatchbacks have 5 doors and sedans have 4
4. Every vehicle has a trunk. A hatchback holds 30 cu ft, a sedan 20
5. Lastly, every vehicle can be started

Make two functions that take a Vehicle pointer as an argument. Call one Salesperson and the other Accountant.

The salesperson function:

1. Prints the type of car
2. Prints how many doors it has
3. Prints the trunk size
4. Starts the car

The Accountant function:

1. Prints the price

If you are looking at this in a panic, stop just looking at. You can see there is a Hatchback class and a Sedan class. They have a lot of similarities so they need a base class. Then just start putting things places. If you find you put the same thing in two classes, move it to the parent.

Answer 1

//screenshot of code

//screenshot of output

//code to copy

#include<iostream>
using namespace std;

class Car //base class for Car
{
protected:
string type;
double price;
int doors;
double trunkSize;
bool start;
public:
Car() //constructor for base Car class
{
start=true; //Both car start.
}
void salesPerson() //required salesPerson function
{
cout<<"Type:"<<type<<endl;
cout<<"Doors:"<<doors<<endl;
cout<<"trunkSize:"<<trunkSize<<endl;
if(start)
{
cout<<"Starts the car."<<endl;
}
}
void accountant()
{
cout<<"Price::"<<price<<" $"<<endl;
}
};

class Hatchbacks:public Car //Hatchbacks class derived from Car class
{
public:
Hatchbacks()
{
type="Hatchbacks";
doors=5;
trunkSize=30.0;
price=31500.00;
}

};

class Sedan: public Car //Sedan class derived from Car class
{
public:
Sedan()
{
type="Sedan";
doors=4;
trunkSize=20.0;
price=14900.00;
}

};

int main()
{
Car *ptr; //pointer of base class(Car class)
char input;
cout<<"Enter H for Hatchback and S for Sedan:";
cin>>input;
if(input=='H'||input=='h')
{
ptr =new Hatchbacks(); //give refrence of Hatchback class object to Car class pointer
}
else if(input=='S'||input=='s')
{
ptr =new Sedan(); //give refrence of Sedan class object to Car class pointer
}
else
{
cout<<"Enter valid Input."<<endl;
exit(1);
}
ptr->salesPerson(); //call salesPerson function of base class(Car class )
ptr->accountant(); //call accountant function of base class(Car class )
return 0;
}