Question

C++ programming

I need at least three test cases for the program and at least one test has to pass

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

void temperatureCoverter(float cel){
float f = ((cel*9.0)/5.0)+32;
cout <<cel<<"C is equivalent to "<<round(f)<<"F"<<endl;
}
void distanceConverter(float km){
float miles = km * 0.6;
cout<<km<<" km is equivalent to "<<fixed<<setprecision(2)<<miles<<" miles"<<endl;
}
void weightConverter(float kg){
float pounds=kg*2.2;
cout<<kg<<" kg is equivalent to "<<fixed<<setprecision(1)<<pounds<<" pounds"<<endl;
}
int main()
{
string country;
cout<<"Enter name of the country : ";
getline(cin,country);
cout<<"\nWe hope you have a safe trip to the USA from "<<country<<endl;
int flag=1;
while(flag){
cout<<"\nCoverter Toolkit"<<endl;
cout<<"----------------"<<endl;
cout<<"1. Temperature Coverter"<<endl;
cout<<"2. Distance Coverter"<<endl;
cout<<"3. Weight Coverter"<<endl;
cout<<"4. Quit"<<endl;
cout<<"Please select your option"<<endl;
int choice;
cin>>choice;
switch(choice){
case 1: float c;
cout<<"Enter temperature in celcius"<<endl;
cin>>c;
temperatureCoverter(c);
break;
case 2: float d;
cout<<"Enter distance in kilometers"<<endl;
cin>>d;
if(d>0)
distanceConverter(d);
else
cout<<"Invalid input!"<<endl;
break;
case 3: float w;
cout<<"Enter weight in kilograms"<<endl;
cin>>w;
if(w>0)
weightConverter(w);
else
cout<<"Invalid input!"<<endl;
break;
case 4: cout<<"Thank you for using this program!"<<endl;
cout<<"<Your Name>"<<endl; // change details
cout<<"<Project Number>"<<endl; // change details
cout<<"<Due date>"<<endl; // change details
flag=0;
break;
default: cout<<"Invalid choice"<<endl;
break;
}
}
  
return 0;
}

Answer 1

// do comment if any problem arises

//code

#include <iostream>

#include <string>

#include <cmath>

#include <iomanip>

using namespace std;

void temperatureCoverter(float cel)

{

    float f = ((cel * 9.0) / 5.0) + 32;

    cout << cel << "C is equivalent to " << round(f) << "F" << endl;

}

void distanceConverter(float km)

{

    float miles = km * 0.6;

    cout << km << " km is equivalent to " << fixed << setprecision(2) << miles << " miles" << endl;

}

void weightConverter(float kg)

{

    float pounds = kg * 2.2;

    cout << kg << " kg is equivalent to " << fixed << setprecision(1) << pounds << " pounds" << endl;

}

int main()

{

    string country;

    cout << "Enter name of the country : ";

    getline(cin, country);

    cout << "\nWe hope you have a safe trip to the USA from " << country << endl;

    int flag = 1;

    while (flag)

    {

        cout << "\nCoverter Toolkit" << endl;

        cout << "----------------" << endl;

        cout << "1. Temperature Coverter" << endl;

        cout << "2. Distance Coverter" << endl;

        cout << "3. Weight Coverter" << endl;

        cout << "4. Quit" << endl;

        cout << "Please select your option" << endl;

        int choice;

        cin >> choice;

        switch (choice)

        {

        case 1:

            float c;

            cout << "Enter temperature in celcius" << endl;

            cin >> c;

            temperatureCoverter(c);

            break;

        case 2:

            float d;

            cout << "Enter distance in kilometers" << endl;

            cin >> d;

            if (d > 0)

                distanceConverter(d);

            else

                cout << "Invalid input!" << endl;

            break;

        case 3:

            float w;

            cout << "Enter weight in kilograms" << endl;

            cin >> w;

            if (w > 0)

                weightConverter(w);

            else

                cout << "Invalid input!" << endl;

            break;

        case 4:

            cout << "Thank you for using this program!" << endl;

            cout << "<Your Name>" << endl;      // change details

            cout << "<Project Number>" << endl; // change details

            cout << "<Due date>" << endl;       // change details

            flag = 0;

            break;

        default:

            cout << "Invalid choice" << endl;

            break;

        }

    }

    return 0;

}

First test case:

Russia

1

20

4

Output:

Test case 2:

India

15

2

200

40

4

Output:

Test case 3:

China

3

80

1

27

0

4

Output: