Question

Exercise 2. Write a program that uses a Scanner object to read a value in SUS (US Dollars). The program computes the equivalent amount in $CA (Canadian currency) and the equivalent in EUROs. Google the conversion rates. The program then writes the result in the following form: 12 marks- type a value in .. EUROs You need to choose whether the variables should be of type int or double. Test the program with three sets of data and include the results in this report. Do not concern yourself with controlling the display of the decimal point.

Answer 1

/**
* The java program that prompts user
* to enter us dollars and converts
* the curreny in dollars to canadian
* and euros and print the results
* to console.
* */
//CurrencyConvertor.java
import java.util.Scanner;
public class CurrencyConvertor
{
   public static void main(String[] args)
   {
       //declare variables
       double usdollars;
       double canadianDollars;
       double euros;

       //exchange rates for us currency in dollars
       final double DOLLAR_TO_CANADIAN_DOLLARS=1.25;
       final double DOLLAR_TO_EUROS=0.85;
       //create a Scanner object
       Scanner scan=new Scanner(System.in);
       System.out.print("Please type a value in $US:");
       usdollars=scan.nextDouble();
      
       //convert us dollars to canadian dollars
       canadianDollars=usdollars*DOLLAR_TO_CANADIAN_DOLLARS;
       //convet usdollars to euros
       euros=usdollars*DOLLAR_TO_EUROS;
       //print usdollar, corresponding candian
       //and euros to console
       System.out.printf("\n$US=%5.2f $CA=%5.2f EUROs=%5.2f",usdollars,canadianDollars,euros);
          
   }
}//end of class

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Sample Output screen shot:

<terminated> CurrencyConvertor [Java Application] D: Please type a value in $US:10 $US-10.00 $CA-12.50 EUROs- 8.50