import java.util.Scanner;

/**
   This is a test driver class for DataSet class.
*/
public class ExP7_6
{
   public static void main(String[] args)
   {
      Scanner in = new Scanner(System.in);
      DataSet a = new DataSet();

      boolean done = false;
      while(!done)
      {
         System.out.print("Enter Value (Q to quit): ");
         String input = in.next();

         if(input.equalsIgnoreCase("Q"))
            done = true;
         else
         {
            double x = Double.parseDouble(input);
            a.add(x);
         }
      }

      System.out.println("There is a total of " + a.getCount() + " values.");
      System.out.println("The average is " + a.getAverage());
      System.out.println("The standard deviation is " + a.getStandardDeviation());
   }
}