how to write a program in c++ to convert currency?

[ennie malebati]

can u please help me to write a progam that convert one currency to another?

[newb16]

We can help but we can't write it from scratch.

[Oralloy]

Some days you just have to respond ....

main()
{
  float dollars;
  int want;

  printf("Input dollars: ");
  cin >> dollars;
  if (0. == dollars)
  {
    printf("give nothing, get nothing...\n");
    exit(1);
  }
  else if (0. > dollars)
  {
    printf("I wrote input, not take!\n");
    exit(2);
  }
  else if (1. > dollars)
  {
    printf("Well, you sure are a parsimonious one, aren't you?\n");
    exit(3);
  }
  else
  { }

  printf("What do you want in return: 1 dollars, 2 nothing? ");
  cin >> want;

  if (1 == want)
    printf("Sure thing, here's your $%f.2 back, less my fee, of course.", (dollars - 0.50));
  else if (2 == want)
    printf("Here you go ... a whole lot of nothing ...\n");
  else
    printf("I guess you're sure ... here's your %d back.  I'll keep the $%f.2 for the effort.", desire, dollars);

  return 0;
}

[whodgson]

Do you have a list of exchange rates?
If not they will be in your local newspaper or Google.
Can you convert one currency to another using exchange rates and a pencil and paper? Write out the mechanism and then convert it to C++.
e.g. if 1.0 $A=1.68$Fiji
and 1.0 $A=6.8$HK
then 1.68$F=6.8$HK
or 1.0 $Fiji = 6.8/1.68 = 4.05$HK
You could use the switch and case: construction for these conversion constants.
If you post some code and say where you are having difficulties someone will help you.

[code green]

Some websites provide open access to text files containing exchange rate data.

These can be opened and parsed to get the data you require.
Most actually charge, but a free one is Timegenie.