Question

  1. Currency conversion: Write a snippet that first asks the user to type

  today's price for one dollar in Euros, then continues to read US dollar values

from the user and convert each to Euros until the sentinel value 0 is entered.

Format output to 2 decimal places.

*****IN JAVA********

Answer 1

DollarsEuros.java :

//importing package
import java.util.*;

//Java class with name DollarsEuros
public class DollarsEuros {
   // main() method
   public static void main(String[] args) {
       // Scanner class instance
       Scanner keyboard = new Scanner(System.in);
       // this variable will store dollars
       int dollars = 1;
       // this variable stores euros price
       double EUROS = 0.85;
       // While loop in Java
       // This while loop will continue till dollar is greater than 0
       while (dollars > 0) {
           // Taking dollars as input from user
           System.out.print("Enter today's price for one dollar : ");
           // reading today's price for one dollar
           dollars = keyboard.nextInt();
           //checking dollars
           if(dollars<=0)
           {
               //if dollars is less than or equal to 0 then
               //break while loop
               break;
           }
           // conversion from dollars to euros
           double euro = dollars * EUROS;
           // print dollars to euros
           System.out.println(dollars + " dollars = " + euro+" euros");
       }

   }

}
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Screen showing dollars to euros conversion :