C++ RSS C++ RSS

Help with Measurement converter

Please support our C++ advertiser: Intel Parallel Studio Home
Thread Solved

•
•
Join Date: Oct 2008
Posts: 5
Reputation: XxAaronxX is an unknown quantity at this point 
Solved Threads: 0
XxAaronxX XxAaronxX is offline Offline
Newbie Poster

Help with Measurement converter

 
0
  #1
Nov 25th, 2008
Hey I am trying to teach myself C++ and i am having trouble with a measurement converter I am pretty sure my problem is in the line

C++ Syntax (Toggle Plain Text) 
  1. Yards = Meters * 1.094;

but i don't know how else to write it, this is my code:

C++ Syntax (Toggle Plain Text) 
  1. #include <iostream>
  2. namespace std;
  3.  
  4. int main()
  5. {
  6. 	cout << "welcome to my measurement converter.";
  7. 	cout << "This converter will convert meters to yards.\n";
  8. 	cout << "Enter the number of meters.\n";
  9. 	int Meters;
  10. 	int Yards;
  11. 	cin >> Meters;
  12. 	Yards = Meters * 1.094;
  13. 	cout << Meters << " meters is equal to " << Yards << " yards";
  14. 	return 0;
  15. }

Your help would be greatly appreciated
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2006
Posts: 2,834
Reputation: niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute niek_e has a reputation beyond repute 
Solved Threads: 297
Moderator
Featured Poster
niek_e's Avatar
niek_e niek_e is offline Offline
Roasting Maven

Re: Help with Measurement converter

 
0
  #2
Nov 25th, 2008
2 things.
Change :
namespace std; to using namespace std; . Your code shouldn't compile without changing it.

then change:
C++ Syntax (Toggle Plain Text) 
  1. int Meters;
  2. int Yards;
to:
C++ Syntax (Toggle Plain Text) 
  1. double Meters;
  2. double Yards;

Int can only be integer values So: 1, 4 , 300, 5632 etc etc.
But you need some digits after the comma, so you need the double data-type
Last edited by niek_e; Nov 25th, 2008 at 6:45 am.
Reply With Quote Quick reply to this message  
•
•
Join Date: Nov 2008
Posts: 392
Reputation: StuXYZ is a glorious beacon of light StuXYZ is a glorious beacon of light StuXYZ is a glorious beacon of light StuXYZ is a glorious beacon of light StuXYZ is a glorious beacon of light StuXYZ is a glorious beacon of light 
Solved Threads: 72
StuXYZ StuXYZ is offline Offline
Posting Whiz

Re: Help with Measurement converter

 
0
  #3
Nov 25th, 2008
The mistake is that you are using integers (the set 0,1,2,3 and -1 etc)
to represent floating point number.
int a=2*1.2; gives sets a to 2.

write
c++ Syntax (Toggle Plain Text) 
  1. double Meters;
  2. double Yards;
instead of the two int declarations.
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2008
Posts: 5
Reputation: XxAaronxX is an unknown quantity at this point 
Solved Threads: 0
XxAaronxX XxAaronxX is offline Offline
Newbie Poster

Re: Help with Measurement converter

 
0
  #4
Nov 25th, 2008
Thanks for the help niek_e and StuXYZ it works perfectly now and i cant believe i forgot to put using before namespace.
Last edited by XxAaronxX; Nov 25th, 2008 at 6:51 am.
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2008
Posts: 5
Reputation: XxAaronxX is an unknown quantity at this point 
Solved Threads: 0
XxAaronxX XxAaronxX is offline Offline
Newbie Poster

Re: Help with Measurement converter

 
0
  #5
Nov 26th, 2008
Hey I Use Visual 2008 C++ Express and i don't know how to link this code to a GUI so that when i type the number of meters into a text box and press a button it will return the answer in a second text box. If you know of a tutorial on GUI's i could use it would be great.

Thanks
Reply With Quote Quick reply to this message  
•
•
Join Date: Oct 2008
Posts: 5
Reputation: XxAaronxX is an unknown quantity at this point 
Solved Threads: 0
XxAaronxX XxAaronxX is offline Offline
Newbie Poster

Re: Help with Measurement converter

 
0
  #6
Nov 26th, 2008
Hey I have decided that a GUI is to Advanced for me to try at the moment and am going to keep reading my book.
Reply With Quote Quick reply to this message  
Reply

Quick Reply to Thread
This thread has been marked solved.
Perhaps start a new thread instead?
•
•
•
•
•
•
•
•
Message:
•
•
•
•



Similar Threads
Other Threads in the C++ Forum
Thread Tools Search this Thread



api array beginner binary bitmap c++ c/c++ calculator char char* class classes coding compile compiler console conversion count data database delete desktop developer directshow dll download dynamic email encryption error file forms fstream function functions game getline google graph gui homeworkhelper iamthwee ifstream input int integer java lib linkedlist linker linux loop looping loops map math matrix memory multiple news node number numbertoword output parameter pointer problem program programming project proxy python random read recursion recursive reference return rpg sorting string strings struct template templates test text text-file tree unix url vector video visualstudio win32 windows winsock word wordfrequency wxwidgets
About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC