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05.21.2008 at 02:42PM PDT, ID: 23422636
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Attachment Details

Currency Conversion Program Error

Asked by lskair in C Programming Language, Miscellaneous Programming

Tags: C

I created a simple currency conversion program last week and would like to add to it to give the user a choice to convert either to or from USD.  So, I added selections, and set up the formulas for each scenario.  However, when I run it, I am having a slight problem when choosing Option 1 (convert from USD to foreign currency).  The problem is that it doesn't end the program correctly, and it tries to ask for another amount to be input.  I am not sure where the problem is, but as soon as I find it, I'd like to then give the user the option to start over, which I think can be done with a while loop.  Any suggestions of what might be causing the program to not exit after calculations are completed, in Selection 1, would be appreciated.

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//This program displays conversions of USD amounts to the selected country's currency 
//Countries available: Canada, India, Australia, Mexico, and Japan 
#include<stdio.h>
int main(void)
 
{
   /*Declare floaters*/
//The below foreign currencies are the floaters available for conversion
      float Canada_Dollars;
      float Indian_Rupees;
      float Australian_Dollars;
      float Mexican_Pesos;
      float Japanese_Yen;
      float US_Dollars;
      int choice;
      int iSelection = 0;	
	
//Currencies retrieved from http://www.xe.com/ucc/ 
      /*List of Currency Conversions to be converted to US dollar*/
      printf("Currency Conversion Program\n");
      printf("\n");
      printf("Foreign currency equivalent to $1 US Dollar (USD)\n");
 
      printf("$1.00 USD equals 0.999850 Canadian Dollars \n");
      printf("$1.00 USD equals 42.5900 Indian Rupees (INR)\n");
      printf("$1.00 USD equals 1.04750 Australian Dollars (AUS)\n");
      printf("$1.00 USD equals 10.4062 Mexican Pesos (MXN)\n");
      printf("$1.00 USD equals 104.080 Japanese Yen (JPY)\n");
      printf("\n");
     
      printf("Please select what you want to do\n");
      
      printf("Press [1] to convert USD to foreign currency\n");
      printf("Press [2] to convert foreign currency to USD\n");
      printf("\n");
      scanf("%d", &iSelection);
if (iSelection == 1){
      printf("Enter 1-5 for country to convert US dollars to\n");
      printf("\n");
      printf("Press [1] for Canada \n");
      printf("\n");
      printf("Press [2] for Indian Rupees  \n");
      printf("\n");
      printf("Press [3] for Australian Dollars\n");
      printf("\n");
      printf("Press [4] for Mexican Pesos \n");
      printf("\n");
      printf("Press [5] for Japanese Yen \n");
 
      printf("\n");
      printf("\n");
 
            printf("\nEnter choice 1 through 5 to find conversion of USD:");      
            scanf("%i",&choice);
}
//USD is entered to correspond with selected choice (1-5).  USD amount is then converted to selected country's currency
            switch(choice){
            
            case 1:
                  printf("Enter amount in US Dollars:");
                  scanf("%f",&US_Dollars);
                  
                  printf("\nCanada dollars equivalent is ");
                  printf("%f", US_Dollars*0.999850);
 
                  break;
            case 2:
                  printf("Enter amount in US Dollars: ");
                  scanf("%f",&US_Dollars);
 
                  printf("\nIndian Rupees equivalent is: ");
                  printf("%f", US_Dollars*42.5900);
                  break;
            case 3:
                  printf("Enter amount in US Dollars: ");
                  scanf("%f",&US_Dollars);
             
                  printf("\nAustralian Dollars equivalence is: ");
                  printf("%f", US_Dollars*1.04750);
                  break;
             
             case 4: 
                  printf("Enter amount in US Dollars: ");
                  scanf("%f",&US_Dollars);
             
                  printf("\nMexican Pesos equivalence is: ");
                  printf("%f", US_Dollars*10.4062);
                  break;
             
             case 5:
                  printf("\nEnter amount in US Dollars: ");
                  scanf("%f", &US_Dollars);
             
                  printf("\nJapanese Yen equivalence is: ");
                  printf("%f", US_Dollars*104.080);
                  break; 
                  
 
             default: 
                 printf("\nPlease choose valid selection 1 to 5");
                  break;
                  
                           
            }
     printf("\n"); 
      {
      printf("End of program");
      printf("\n");
      printf("Press Enter to close program.");
      }
  if (iSelection == 2){
      printf("Enter 1-5 for country you wish to convert to USD\n");
      printf("\n");
      printf("Press [1] for Canada \n");
      printf("\n");
      printf("Press [2] for Indian Rupees  \n");
      printf("\n");
      printf("Press [3] for Australian Dollars\n");
      printf("\n");
      printf("Press [4] for Mexican Pesos \n");
      printf("\n");
      printf("Press [5] for Japanese Yen \n");
 
      printf("\n");
      printf("\n");
 
            printf("\nEnter choice 1 through 5 to find conversion from foreign to USD:");      
            scanf("%i",&choice);
}
//Foreign dollar is entered to correspond with selected choice (1-5).  Foreign amount is then converted to US Dollars
            switch(choice){
            
            case 1:
                  printf("Enter amount in Canada Dollars:");
                  scanf("%f",&Canada_Dollars);
                  
                  printf("\nUSD equivalent is ");
                  printf("%f", Canada_Dollars*1.01701);
 
                  break;
            case 2:
                  printf("Enter amount in Indian Rupees: ");
                  scanf("%f",&Indian_Rupees);
 
                  printf("\nUSD equivalent is: ");
                  printf("%f", Indian_Rupees*0.0234028);
                  break;
            case 3:
                  printf("Enter amount in Australian Dollars: ");
                  scanf("%f",&Australian_Dollars);
             
                  printf("\nUSD equivalence is: ");
                  printf("%f", Australian_Dollars*0.962373);
                  break;
             
             case 4: 
                  printf("Enter amount in Mexican Pesos: ");
                  scanf("%f",&Mexican_Pesos);
             
                  printf("\nUSD equivalence is: ");
                  printf("%f", Mexican_Pesos*0.0964981);
                  break;
             
             case 5:
                  printf("\nEnter amount in Japanese Yen: ");
                  scanf("%f", &Japanese_Yen);
             
                  printf("\nUSD equivalence is: ");
                  printf("%f", Japanese_Yen*0.00971057);
                  break; 
                  
 
             default: 
                 printf("\nPlease choose valid selection 1 to 5");
                  break;
                  
                           
            }
     printf("\n"); 
 
 {
      printf("End of program");
      printf("\n");
      printf("Press Enter to close program.");
      }
      getchar ();
      return 0; 
 {
      printf("End of program");
      printf("\n");
      printf("Press Enter to close program.");
      }
      getchar ();
      return 0; 
       
 
 }
//1.1 conversions not calculating correctly. Converting to 0.00000 
//1.2 fixed conversions, had entered country instead of US_dollars 
/*1.3 compiled correctly, wouldn't link -- error Linker Error (Severity 4)
	Module "a" in file "c:\program files\miracle c\currency_css561.obj"
	references unresolved external "_prinf"
	at offset 02B1H in segment "_text". --found error "prinf" instead of "printf"--missing character "t" */
//1.4 compiled, linked, ran correctly
//1.5 tested selection 1, Canada dollar, converted correctly $500 USD to 499.925 CAD
//1.6 tested selection 2, Indian Rupees, converted correctly $500 USD to 21,295 IR
//1.7 tested selection 3, Australian Dollar, converted correctly $500 USD to 523.75 AUS
//1.8 tested selection 4, Mexican Pesos, converted correctly $500 USD to 5203.1 MXN
//1.9 tested selection 5, Japanese Yen, converted correctly $500 USD to 52,040 JPY
[+][-]05.21.2008 at 02:52PM PDT, ID: 21619331

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[+][-]05.21.2008 at 03:12PM PDT, ID: 21619485

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Zones: C Programming Language, Miscellaneous Programming
Tags: C
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Solution Provided By: evilrix
Participating Experts: 2
Solution Grade: A
 
 
[+][-]05.21.2008 at 03:34PM PDT, ID: 21619595

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[+][-]05.21.2008 at 03:40PM PDT, ID: 21619627

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