import java.io.*;
import java.util.Scanner;
import java.util.ArrayList;

public class DataSetTest
{
	public static void main(String[] args) throws IOException
	{
		Scanner keyboard = new Scanner(System.in);
		
		boolean successful = false;
		while ( !successful )
		{
			try
			{
				DataSetReader reader = new DataSetReader();

				System.out.print("File name ? ");
				String fileName = keyboard.next();				
				double[] data = reader.readFile(fileName);
				
				double sum = 0.0;
				for (double item : data)
					sum += item;
				System.out.println(data.length + " Items.  Sum: " + sum);
            
				successful = true;
			}
			catch (FileNotFoundException exception)
			{
				System.out.println("File not found \n" + exception.getMessage());
			}
			catch (DataException exception)
			{
				System.out.println("Data Error > " + exception.getMessage());
			}
		}
	}
}