import java.io.*;
   import java.text.DecimalFormat;

    public class Average
   {
      static BufferedReader keyboard = new BufferedReader 
      (new InputStreamReader(System.in));
   
   /*****************************************************************
    *  Computes the average of a set of values entered by the user.
    *  The running sum is printed as the numbers are entered.
    *****************************************************************/
       public static void main (String[] args) throws IOException
      {
         int sum = 0, value, count = 0;
         double average;
         DecimalFormat fmt = new DecimalFormat ("0.###");
      
         // initialize the loop control variable
         System.out.print ("Enter an integer (0 to quit): ");
         value = Integer.parseInt(keyboard.readLine());
         
			while (value == 0)
			{
				System.out.print ("At least give me one: ");
				value = Integer.parseInt(keyboard.readLine());
			}
			
			
         while (value != 0)  {     // sentinel value of 0 to terminate loop
            // increment the count and update the sum
            count++;
            sum += value;
            System.out.println ("The sum so far is " + sum);
            
            // update the loop control variable
            System.out.print ("Enter an integer (0 to quit): ");
            value = Integer.parseInt(keyboard.readLine());
         }
      
         System.out.println ("\nNumber of values entered: " + count);
      
      	 // calculate the average and output to user
         average = (double) sum / count;
         System.out.println ("The average is " + fmt.format(average));
			System.out.println ("The number itself is " + average);
      }
   }