Question

You are tasked with developing an application that converts US currency ($) to 3 other major world currencies.

Here are the current rates:

1 US dollar = 0.90 EURO

1 US dollar = 107.7 Japanese YEN

1 US dollar =19.45 Mexican PESO

Your application must prompt the user to enter an amount in US dollars, convert it into EURO, YES, and PESO and then display all using a suitable format.

Coding requirements:

-All your variables MUST  declared inside main() except for the Scanner.

-Code function(s)/method(s)   that handle all input.

-Code function(s)/method(s) that handles all conversions.

-Code a function/method that displays the result of the conversion. Your output must be clear and well labeled.

(show the amount input in dollar, then show the amount of the conversion for each of the three major currencies)

Answer 1

//import the Scanner class to create an object to the read the data from the user.
import java.util.Scanner;

// main class name is converion
public class Conversion {

//creating an object for Scanner class .
//Scanner object has to be static.
//In java a static method can call only static methods.

   static Scanner sc = new Scanner(System.in);
//driver code.  
   public static void main(String args[]) {
      
       //asking the user to enter the amount in dollrs
       System.out.println("Enter the amount in dollars : ");
      
       //taking the input from the user using the sc (Scanner class) object
       double Dollars = sc.nextDouble();
      
       //displaying the user entered amount
       System.out.println("Entered amount in dollars is :"+Dollars+"$");
       System.out.println("Currency after conversion");
      
       //converting the currency into other countries currencies.
       //inorder to convert from one currency to another we multiply with the value with which they are in proportion.
      
       //incase of Euros it is 1 US Dollar = 0.90 Euro
       double Euros = Dollars * 0.90;
       // printing the amount in Euros
       System.out.println("Amount in Euros: "+ Euros);
      
       //1 US Dollar = 107.7 Yen
       double Yen = Dollars * 107.7;
       //printing the amount in Yen
       System.out.println("Amount in Yen : "+ Yen);
      
       // 1 US dollar = 19.45 Peso
       double Peso = Dollars * 19.45;
       //printing the amoun in Peso
       System.out.println("Amount in Peso : "+ Peso);
  
   }  
}

OUTPUT: -