Question

Write a program that will convert U.S. dollar amounts to Japanese yen and to euros, storing the conversion factors in the constants YEN_PER_DOLLAR and EUROS_PER_ DOLLAR. To get the most up-to-date exchange rates, search the Internet using the term “currency exchange rate”. If you cannot find the most recent exchange rates, use the following:

1 Dollar = 98.93 Yen

1 Dollar = 0.74 Euros

Format your currency amounts in fixed-point notation, with two decimal places of precision, and be sure the decimal point is always displayed.

Answer 1

#include<stdio.h>
int main()
{
   //Define constant for current exchange rate
   const float YEN_PER_DOLLAR   = 106.84;
   const float EUROS_PER_DOLLAR = 0.81;
   float dollar = 0; //Define a varible to take user input
   printf("How much U.S. Dollar ?\n"); //Ask user for input
   scanf("%f", &dollar); // Read input
   //Calculate yen and euros by multiplying dollar * per_dollar value
   printf(" %0.2f Dollar = %0.2f Yen\n",   dollar, dollar * YEN_PER_DOLLAR);
   printf(" %0.2f Dollar = %0.2f Euros\n", dollar, dollar * EUROS_PER_DOLLAR);
}

Note : The program is done under linux environment using C programming language. Ping me for doubts or if you need this program in some other programming language. Thanks. Please note that %0.2f is used to display only 2 digits after the decimal point.