/*
    BasicFileTest2.java
    CIS 160
    David Klick
    2005-09-09

    Demonstration of basic file handling.
*/

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

public class BasicFileTest2 {
    public static void main(String[] args) throws IOException {
        String s;
        int number, total = 0;

        // create file
        PrintWriter outfile = new PrintWriter("ftest.txt");
        for (int i=1; i<=10; i++) {
            outfile.println(100-i);
        }
        outfile.close();

        // read file back in
        FileReader fr = new FileReader("ftest.txt");
        BufferedReader infile = new BufferedReader(fr);
        s = infile.readLine();
        while (s != null) {
            System.out.println(s);
            try {
                number = Integer.parseInt(s);
                total += number;
            } catch (NumberFormatException e) {
                System.out.println("Invalid number encountered");
            }
            s = infile.readLine();
        }
        infile.close();
        fr.close();
        System.out.println("Total: " + total);
    }
}

/*
    Sample output:

    99
    98
    97
    96
    95
    94
    93
    92
    91
    90
    Total: 945
*/