OnlyGirlInClass

Hi I need some help with my project, Ive been trying everything I know to make it work but it wont.

My project is to make a program that converts Celsius to Fahrenheit or Fahrenheit to Celsius or just exit.

Here's my program:

#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{

//Declarating Variables

double celsius;
int option = 0;
double fahrenheit;


//Promt user for options

cout<<"Please pick one of the following options:"<<endl;
cout<<"1- Convert from Celsius to Fahrenheit."<<endl;
cout<<"2- Convert from Fahrenheit to Celsius."<<endl;
cout<<"3- Exit program!"<<endl;
cin>>option;


//Calculating Temperature

if (option == 1)
{
cout<<"Please enter Celsius temperature: "<<endl;
cin>>celsius;
fahrenheit = (celsius * 1.8 + 32);
cout<<" Your result is: "<<fahrenheit<<"degrees in Fahrenheit. "<<endl;
}
else if (option == 2)
{
cout<<"Please enter Fahrenheit temperature: ";
cin>>fahrenheit;
celsius = 5.0/9.0*(fahrenheit - 32) ;
cout<<" Your result is: "<<celsius<<"degrees in Celsius. "<<endl;
}
else (option == 3)
{
cout<<"Bye Bye!"<<endl;
}

return 0;

}

Um ok, so it compiles and everything but when I execute it it gets as far as asking the user to enter the temperature and then when I press enter it closes.

Sooo I was wondering if anyone had an idea how to fix it...


Thanks in advance
(I am working on Dev-C++.)

ScottG489

If you have an else statement that means its going to run if none of the other if, or else if conditions are true. The else statement never takes a condition since it runs based on the fact that none of the other conditions were true.

Btw, what compiler or IDE are you using for C++? Usually it will tell you where the error is and the problem is either on that line or the line before it for most compiler errors.

OnlyGirlInClass

I see what you mean, i erased that if under the else, i tried running it again but it still closes after i input a temperature..

and for the compiler im using i think its GNU, im using dev-C++ from bloodshed.net im supposed to be using Borland C++ , im currently looking for it.

btw, thank you :)

ScottG489

Thats weird. I compiled it in Dev-C++ and it gave me errors and didn't run.

And what do you mean you erased an if. You should have added one....

btw add system("PAUSE"); above return 0; at the end. I think thats why your program doesn't stop. I don't even see how it compiled in the first place though.

OnlyGirlInClass

Oh sorry I understood wrong, I added the else at the end with no conditions and aslo added the system(''PAUSE"); that was my bad I forgot about it

Here is my program again:

#include <cstdlib>
#include <iostream>

using namespace std;

int main()
{

//Declarating Variables

double celsius;
int option = 0;
double fahrenheit;


//Promt user for options

cout<<"Please pick one of the following options:"<<endl;
cout<<"1- Convert from Celsius to Fahrenheit."<<endl;
cout<<"2- Convert from Fahrenheit to Celsius."<<endl;
cout<<"3- Exit program!"<<endl;
cin>>option;


//Calculating Temperature

if (option == 1)
{
cout<<"Please enter Celsius temperature: "<<endl;
cin>>celsius;
fahrenheit = (celsius * 1.8 + 32);
cout<<" Your result is: "<<fahrenheit<<"degrees in Fahrenheit. "<<endl;
}
else if (option == 2)
{
cout<<"Please enter Fahrenheit temperature: ";
cin>>fahrenheit;
celsius = 5.0/9.0*(fahrenheit - 32) ;
cout<<" Your result is: "<<celsius<<"degrees in Celsius. "<<endl;
}
else if (option == 3)
{
cout<<"Bye Bye!"<<endl;
}
else

system("PAUSE");
return 0;


}

I apologize for my error im just starting to use C++ :)

OnlyGirlInClass

Its working fine now I added an cin>> at the end so it would stay open to see what would happens and it executes fine , YAY

anyways; Thanks a lot for your help, a lot a lot