// simple example of counting characters in a file
// takes file name as command line argument

import java.io.*;

public class CharCount {
    
    public static void main(String[] args) {
        if (args.length == 0) {
            System.err.println("no files specified");
        } else {
            System.out.println(charCount(args[0]));
        }
    }
  
    public static int charCount(String fileName) {
        int count = 0;
        try {
            BufferedReader fileIn =
                new BufferedReader(new FileReader(fileName));
            while (fileIn.read() >= 0)
                ++count;
            fileIn.close();
            return count;
        } catch (FileNotFoundException e) {
            System.err.println("cannot open " + fileName);
            System.exit(1);
        } catch (IOException e ) {
            System.err.println(e);
        }
        return count;
    }
}