Error Fix in C++ Object Oriented Programming

Question

I have been making this assignments for a while but can't seem to make use of 2nd option in menu to run the car. can anyone help!

Code>>>>>>>>>>>>>>>>>

#include <iostream>
#include <string.h>
using namespace std;

class FuelGauge
{

private:
int fuel;
bool boolvalue;
public:
FuelGauge()
{
fuel=0;
boolvalue=1;
}
FuelGauge(int f)
{
fuel=f;
}
void printfuel()
{
cout<<"The current amount of fuel in gallons is: "<<fuel<<endl;
}
int fuelin()
{
if (fuel<15)
{
fuel=fuel+1;
cout<<"Fuel after adding 1 gallon is: "<<fuel<<endl;
}
else
{
cout<<"Error! Fuel exceeds the limit of tank capacity!!!"<<endl;
}
return fuel;
}
int fuelout()
{
if (fuel>0)
{
fuel=fuel-1;
}
else
{
cout<<"Error! Fuel tank is empty!!!"<<endl;
}
return fuel;
}
int boolreturn()
{
if (fuel==0)
{
boolvalue=0;
}
return boolvalue;
}
friend class Odometer;
};

class FuelGuage;

class Odometer{
private:
int mileage;
int count;
public:

Odometer()
{
mileage=0;
count=0;
}
Odometer(int m)
{
mileage=m;
}
void printmileage()
{
cout<<"The current car's mileage is: "<<mileage<<endl;
}
int addmileage(FuelGauge &s)
{
if (mileage<999999)
{
mileage=mileage+1;
count=count+1;
if (count>24)
{
count=0;
}
cout<<"The current fuel of car is: "<<s.fuel<<" and the current mileage of car is: "<<mileage<<endl;
}
else if (mileage>999999)
{
mileage=0;
}
return mileage;
}
int decfuel(FuelGauge &s)
{
if (count==24)
{
s.fuel=s.fuel-1;
}

return mileage;
}

};

int main()
{
int fuel,mileage;
cout<<"Enter car's fuel: "<<endl;
cin>>fuel;
if(fuel>15 || fuel<0)
{
cout<<"Error! Fuel input is invalid!!!"<<endl;
exit;
}
cout<<"Enter car's mileage: "<<endl;
cin>>mileage;
if (mileage>999999 ||

Answer 1

Muhammad Abdullah It is not possible to see error when you share code with question so I will suggest you make this code in Playground and share code here.

Answer 2

REST OF THE CODE IS HERE!

cout<<"Enter car's mileage: "<<endl;
cin>>mileage;
if (mileage>999999 || mileage<0)
{
cout<<"Invalid input for mileage!!!"<<endl;
}
FuelGauge a(fuel);
Odometer b(mileage);

int ch,ch1,ch2;
cout<<"Press 1 to fill the fuel tank by 1 gallon."<<endl;
cin>>ch1;
do
{
a.fuelin();
cout<<"Press 5 to stop filling fuel: "<<endl;
cin>>ch2;
}
while (ch2!=5);
cout<<"Press 2 to run the car."<<endl;
cout<<"Press 3 to know the current amount of fuel."<<endl;
cout<<"Press 4 to know the current mileage."<<endl;
cin>>ch;
int z;
z=a.boolreturn();

if (ch==3)
{
a.printfuel();
}
if (ch==2)
{
while (z==1)
{
b.addmileage(a)<<b.decfuel(a)<<a.fuelout();
}
}
if (ch==4)
{
b.printmileage();
}

return 0;
}

Answer 3

Please check the while loop
While(z==1){

}