What is error in this program ???

Question

#include <iostream>
#include <string>
using namespace std;
class car
{
string name;
int speed;
public:
car(string iname ,int ispeed);
{
name=iname;
speed=ispeed;
}
void tellme()
{
cout<<name<<endl<<speed<<endl;
}
friend void display(car driver);
void display(car driver);
{
cout<<driver.name<<endl;
cout<<driver.speed<<endl;
}
};
int main()
{
car hello("BMW",250,"red");
display(hello);
return (0);
}

Answer 1

thank all of you

Answer 2

delete the semicolon in :car(string iname ,int ispeed);
and : void display(car driver);

remove the "red" form car hello("BMW",250,"red");
the constructor cas wants 2 parameters

and try i'm sorry but I don't now c++

Answer 3

The main problem is that your class' constructor has 2 parameters and you are calling it with 3 parameters.

Then, you have a semicolon (';') added after your function definitions, which should not be there.

car(string iname ,int ispeed)
{
name = iname;
speed = ispeed;
}

Then, the single purpose of friend functions is for them to be declared outside the class body.

Here is my implementation of your class:

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

class Car
{
public:
Car(string iname, int ispeed) : name(iname), speed(ispeed)
{
}

void tellme()
{
cout << name << endl << speed << endl;
}

friend void display(Car driver);

private:
string name;
int speed;
};

void display(Car driver)
{
cout << driver.name << endl;
cout << driver.speed << endl;
}

int main()
{
Car hello("BMW", 250);
display(hello);
return (0);
}