Can anybody fix the error in this program? In my constructor in my City.h file. //City.h file #ifndef Point_H_ #define Point_H_ #include #include #include "Point.h" const size_t MAX_CITYNAME = 80; class City { private: Point location; char cityName[MAX_CITYNAME]; public: City(void); City(Point l, char city[MAX_CITYNAME]) : location{l} { setName(city); } double distance(const City & other) const { return location.calculateDistance(other.location); } void setLocation(Point l) { location = l; } Point getLocation(void) const { return location; } void setName(char city[]) { strcpy(cityName,city); } char* getName(void) { return cityName; } void printInformation(void) { std::cout <<"\tName: " << cityName <<"\nLocation: "; location.outputPoint(); } void updateInformation(Point l, char city[]) { location = l; strcpy(cityName,city); } }; #endif //Point.h file #ifndef POINT_H_ #define POINT_H_ #include #include class Point { private: double x; double y; public: Point(void) : x{0.0}, y{0.0} {} Point(double Xcoordinate, double Ycoordinate) : x{Xcoordinate}, y{Ycoordinate} {} //mutator function void setX(double Xcoordinate) { x = Xcoordinate; } void setY(double Ycoordinate) { y = Ycoordinate; } //accesor function double getX(void) const { return x; } double getY(void) const { return y; } void inputPoint() { char t; std::cin >> t >> x >> t >> y >> t; } void outputPoint(void) const { std::cout << '(' << x << "," << y << ')'; return; } double calculateDistance(const Point & p) const { return sqrt(pow(x - p.x, 2.0) + pow(p.y - y, 2.0)); } Point calculateMidpoint(const Point & p) const { return Point((p.x + x) / 2, (p.y + y) / 2); } }; #endif //calculateCity file #include #include #include "Point.h" #include "City.h" using namespace std; int main() { char choice; //choice the user makes City myCity[5]; //array of city char name[20]; //for storing the length size_t i = 0; Point point; cout <<"\n\t\tWelcome to Calculate Distance between City Program!!!\n"; cout <<"\n 1) Enter city Information." <<"\n2) Calculate Distance between two cities" <<"\n3) Print All cities" <<"\n4) Quit" << endl <<"\nChoice: "; cin >> choice; cin.ignore(numeric_limits::max(), '\n'); switch(choice) { case '1': case 'e' : case 'E' : if (i < 5) { cout <<"Enter the city name: "; cin.getline(name,20); cout <<"Enter the coordinates of the city: "; point.inputPoint(); myCity[i] = City(point,name); i++; } else //if the city name is overload { } break; case '2': case 'c' : case 'C' : if (i >= 2) { if (i == 2) { cout <<"Distance between two cities: "; cout << myCity[0].distance(myCity[1]); cout << endl; } else { int n1, n2; for (size_t j = 0; j < i; j++) { cout << j + 1 << "."; myCity[j].printInformation(); } cout <<"\nEnter the numbers of the cities for the distance: "; cin >> n1 >> n2; cout <<"\nThe distance betweem " << myCity[n1-1].getName() <<" and " << myCity[n2-1].getName() << " is "; cout <
Can anybody fix the error in this program? In my constructor in my City.h file.
//City.h file
#ifndef Point_H_
#define Point_H_
#include <iostream>
#include <cstring>
#include "Point.h"
const size_t MAX_CITYNAME = 80;
class City
{
private:
Point location;
char cityName[MAX_CITYNAME];
public:
City(void);
City(Point l, char city[MAX_CITYNAME])
: location{l} {
setName(city);
}
double distance(const City & other) const
{
return location.calculateDistance(other.location);
}
void setLocation(Point l)
{
location = l;
}
Point getLocation(void) const
{
return location;
}
void setName(char city[])
{
strcpy(cityName,city);
}
char* getName(void)
{
return cityName;
}
void printInformation(void)
{
std::cout <<"\tName: " << cityName <<"\nLocation: ";
location.outputPoint();
}
void updateInformation(Point l, char city[])
{
location = l;
strcpy(cityName,city);
}
};
#endif
//Point.h file
#ifndef POINT_H_
#define POINT_H_
#include <iostream>
#include <cmath>
class Point
{
private:
double x;
double y;
public:
Point(void) : x{0.0}, y{0.0} {}
Point(double Xcoordinate, double Ycoordinate) :
x{Xcoordinate}, y{Ycoordinate} {}
//mutator function
void setX(double Xcoordinate)
{
x = Xcoordinate;
}
void setY(double Ycoordinate)
{
y = Ycoordinate;
}
//accesor function
double getX(void) const
{
return x;
}
double getY(void) const
{
return y;
}
void inputPoint()
{
char t;
std::cin >> t >> x >> t >> y >> t;
}
void outputPoint(void) const
{
std::cout << '(' << x << "," << y << ')';
return;
}
double calculateDistance(const Point & p) const
{
return sqrt(pow(x - p.x, 2.0) + pow(p.y - y, 2.0));
}
Point calculateMidpoint(const Point & p) const
{
return Point((p.x + x) / 2, (p.y + y) / 2);
}
};
#endif
//calculateCity file
#include <iostream>
#include <limits>
#include "Point.h"
#include "City.h"
using namespace std;
int main()
{
char choice; //choice the user makes
City myCity[5]; //array of city
char name[20]; //for storing the length
size_t i = 0;
Point point;
cout <<"\n\t\tWelcome to Calculate Distance between City Program!!!\n";
cout <<"\n 1) Enter city Information."
<<"\n2) Calculate Distance between two cities"
<<"\n3) Print All cities"
<<"\n4) Quit" << endl
<<"\nChoice: ";
cin >> choice;
cin.ignore(numeric_limits<streamsize>::max(), '\n');
switch(choice)
{
case '1': case 'e' : case 'E' :
if (i < 5)
{
cout <<"Enter the city name: ";
cin.getline(name,20);
cout <<"Enter the coordinates of the city: ";
point.inputPoint();
myCity[i] = City(point,name);
i++;
}
else //if the city name is overload
{
}
break;
case '2': case 'c' : case 'C' :
if (i >= 2)
{
if (i == 2)
{
cout <<"Distance between two cities: ";
cout << myCity[0].distance(myCity[1]);
cout << endl;
}
else
{
int n1, n2;
for (size_t j = 0; j < i; j++)
{
cout << j + 1 << ".";
myCity[j].printInformation();
}
cout <<"\nEnter the numbers of the cities for the distance: ";
cin >> n1 >> n2;
cout <<"\nThe distance betweem " << myCity[n1-1].getName()
<<" and " << myCity[n2-1].getName() << " is ";
cout <<myCity[n1-1].distance(myCity[n2-1]) << endl;
}
}
else
{
cout <<"\nNot enought city in the map. ";
}
break;
default :
cout <<"\nYou have entered an invalid choice!!!\n";
break;
}
return 0;
}
The given program has to be implemented in a way that the user can enter the choice again. The program has to work until user enters choice for quitting.
This will be done using a while loop and if else conditions.
The program file that has been given, do not have the while loop, so that has to be added in it.
Also, some changes have been made in both City.h and Point.h header file for making the program functional.
The empty constructor in the City.h file was not defined.
It has to be defined as follows:
City()
{
}
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