Question

The assignment is to write a program in unix using C++ environment

Car Instrument Simulator

For this assignment you will design a set of classes that work together to simulate a car’s fuel gauge and odometer.

The classes you will design are:

• The FuelGauge Class: This class will simulate a fuel gauge. Its responsibilities are

– To know the car’s current amount of fuel, in gallons.

– To report the car’s current amount of fuel, in gallons.

– To be able to increment the amount of fuel by 1 gallon. This simulates putting fuel in the car. (The car can hold a maximum of 15 gallons.)

– To be able to decrement the amount of fuel by 1 gallon, if the amount of fuel is greater than 0 gallons. This simulates burning fuel as the car runs.

• The Odometer Class: This class will simulate the car’s odometer. Its responsibilities are:

– To know the car’s current mileage.

– To report the car’s current mileage. Programming Challenges 889

– To be able to increment the current mileage by 1 mile. The maximum mileage the odometer can store is 999,999 miles. When this amount is exceeded, the odometer resets the current mileage to 0.

– To be able to work with a FuelGauge object. It should decrease the FuelGauge object’s current amount of fuel by 1 gallon for every 24 miles traveled. (The car’s fuel economy is 24 miles per gallon.)

Demonstrate the classes by creating instances of each. Simulate filling the car up with fuel, and then run a loop that increments the odometer until the car runs out of fuel. During each loop iteration, print the car’s current mileage and amount of fuel.

Answer 1

// Main.cpp
#include
#include "FuelGauge.h"
#include "Odometer.h"
using namespace std;

int main()
{
FuelGauge fuel(1);
Odometer odm(0, &fuel);

for (int i = 0; i < 15; i++)
fuel.incrementFuelTank();

while (fuel.getCurrentAmountOfFuel() > 0)
{
odm.incrementcurrentMileage();
cout << "Mileage: " << odm.getCurrentMileage() << endl;
cout << "Fuel level" << fuel.getCurrentAmountOfFuel() << " gallons" << endl;
}

return 0;
}

// FuelGauge.h
using namespace std;

#ifndef FUELGAUGE_H
#define FUELGAUGE_H

class FuelGauge
{
private:
int currentAmountOfFuel;
public:
FuelGauge(int gallons)
{
currentAmountOfFuel = gallons;
}

int getCurrentAmountOfFuel() const
{
return currentAmountOfFuel;
}
void incrementFuelTank()
{
if (currentAmountOfFuel< 15)
currentAmountOfFuel++;
}
void decrementFuelTank()
{
if (currentAmountOfFuel > 0)
currentAmountOfFuel--;
}
};

#endif

// Odometer.h
#include "FuelGauge.h"
using namespace std;

#ifndef ODOMETER_H
#define ODOMTER_H

class Odometer
{
private:
int currentMileage;
FuelGauge *fuelG;
public:
Odometer(int miles, FuelGauge *f)
{
currentMileage = miles;
fuelG = f;
}

int getCurrentMileage()
{
return currentMileage;
}
void incrementcurrentMileage()
{
if (currentMileage < 999999)
currentMileage++;
if (currentMileage == 999999)
currentMileage = 0;
}
void decrementcurrentMileage()
{
if (currentMileage > 24)
currentMileage--;
}
};

#endif