import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Scanner;

public class Question5 {

	public static void main(String[] args) {
		if (args.length < 1) {
			System.out.println ("Need a path as argument!");
			System.exit(-1);
		}
		Path p = Paths.get(args[0]);// any point in this?
		
		try (Scanner s = new Scanner(Files.newBufferedReader(p, java.nio.charset.StandardCharsets.UTF_8))) {
			String star;
			int flamsteed;
			int numRecords = 0;
			double starData;
			double totalStarData = 0;
			while (s.hasNext()) {
				star = s.next();
				flamsteed = s.nextInt();
				starData = s.nextDouble();
				System.out.println ("Star "+star+" has Flamsteed "+flamsteed+" and data "+starData);
				numRecords++;
				totalStarData += starData;
			}
			System.out.format("There were %s records and the average data was %.2f to 2dp.", numRecords, totalStarData/numRecords);
		} catch (IOException e) {
			System.err.println(e);
		} 
		}

	}