/*
CSE 142, Autumn 2007, Marty Stepp
This program reads a file and adds all its numeric tokens.
This version skips over any non-numeric tokens.
*/

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

public class Echo {
    public static void main(String[] args) throws FileNotFoundException {
        Scanner input = new Scanner(new File("numbers.txt"));
        double sum = 0.0;
        while (input.hasNext()) {
            if (input.hasNextDouble()) {
                // next token is a number; read and add it to sum
                double token = input.nextDouble();
                System.out.println("number = " + token);
                sum += token;
            } else {
                // junk token (not a number); throw it away
                String throwaway = input.next();
                // System.out.println("I'm skipping this token: " + throwaway);
            }
        }
        System.out.println("Sum = " + sum);
    }
}