Topics:

Introduction to classes (continued)

Overloading function names

Abstract data types

Friend functions

Overloading operators

Use the same format for problem and function headings as assignment 1.

Problem 3.1

Copy the solution from problem 2.2

Make the following additions and changes:

1. Arrange the functions in the order:

* main

* output

* setUp (was setUpCar)

* input

2. Change the output function so it is a member function of the class Car.

3. Change the name of the setUpCar function to setUp and make it a

member function of the class Car, with five parameters specified as

constant reference parameters.

4. Make all the data in the Car class private and make the member

functions public.

5. Do NOT make the input function a member function.

6. Change the parameters of the input function to five reference

parameters corresponding to the five fields in the class.

7. In main define five variables. Pass these variables to the input

function so the input function can set their values.

8. In main define a Car object. This time the Car object will be in the

stack for main, rather than in the heap. Name this object car1.

9. In main call the setUp function and pass the five variables, rather

than calling it from the input function.

10. In main call the output function.

11. Test the program with the same data as was used in assignment 2.

Solution 2.2 Below:

#include #include #include #include

using namespace std;

class car{ public: string reportingmark; int carnumber; string kind; bool loaded; string destination; };

void setUpCar(car &c, string rm, int cn, string kind, bool loaded, string d){ c.reportingmark = rm; c.carnumber = cn; c.kind = kind; c.loaded = loaded; c.destination = d; }

void input(car &c){ string rm; int cn; string kind; bool loaded; string destination; cout << "Enter reporting mark:"; getline(cin,rm); cout << "Enter car number:"; string line; getline(cin,line); cn = atoi(line.c_str()); cout << "Enter kind:"; getline(cin,kind); cout << "Enter loaded(true/false):"; getline(cin,line); if (line == "true") loaded = true; else if (line == "false") loaded = false; if (loaded){ cout << "Enter Destination:"; getline(cin,destination); } else { destination = "NONE"; } setUpCar(c,rm,cn,kind,loaded,destination);

}

void output(car c){ cout << "Reporting Mark:" << c.reportingmark << endl; cout << "Car Number:" << c.carnumber << endl; cout << "Kind:" << c.kind << endl; if (c.loaded) cout << "Loaded:" << "true" << endl; else cout << "Loaded:" << "false" << endl; cout << "Destination:" << c.destination << endl;

}

int main(){

car *c = new car(); input(*c); output(*c); return 0; }