import java.util.*; // for Scanner
import java.io.*;   // for File

// Reads in all the tokens in the given file, printing out and adding
// up all the numbers that can be parsed as doubles.
public class Echo2 {
   public static void main(String[] args) throws FileNotFoundException {
      Scanner input = new Scanner(new File("numbers2.txt"));      
      double sum = 0.0;
      
      while (input.hasNext()) {
         if (input.hasNextDouble()) {
            double next = input.next();
            System.out.println("number = " + next);
            sum += next;                     
         } else {
            System.out.println("not a double, can't read: " + input.next());
         }
      
      }
            
      double rounded = Math.round(sum * 10.0) / 10.0;
      System.out.println("Sum = " + rounded);
   }
}