import java.util.Scanner;

/**
   This program computes the average and maximum of a set
   of input values.
*/
public class DataAnalyzer
{  
   private static double sum;
   private static double count;
   private static double maximum;

   public static void main(String[] args)
   {  
      Scanner in = new Scanner(System.in);
      sum = 0;
      count = 0;
      maximum = 0;
      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);
            add(x);
         }
      }

      double average;
      if (count == 0) average = 0;
      else average = sum / count;

      System.out.println("Average = " + average);
      System.out.println("Maximum = " + maximum);
   }

   /**
      Adds a data value to the data set
      @param x a data value
   */
   public static void add(double x)
   {
      sum = sum + x;
      if (count == 0 || maximum < x) maximum = x;
      count++;
   }

   /**
      Gets the average of the added data.
      @return the average or 0 if no data has been added
   */
   public static void getAverage()
   {
      if (count == 0) return 0;
      else return sum / count;
   }
}