import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.InputMismatchException;

public class Main
{
	
	public static void main(String[] args) 
	{
		Scanner in = new Scanner(System.in);
		System.out.print("Input the file pathname: ");
		String fname = in.next();
		
		int totalMark=0;
		Scanner inFile=null;
		try 
		{
			inFile = new Scanner(new File(fname));
			while (inFile.hasNext())
			{
				int x = inFile.nextInt();
				if (x<0)
					throw new NegativeIntegerException("-ve number", x);
				totalMark+=x;
			}
		}
		catch (FileNotFoundException e) 
		{
			System.out.println("Cannot open the file.");
		} 
		catch (InputMismatchException e) 
		{
			System.out.println("Cannot read the required number from the opened file.");
		}
		catch (NegativeIntegerException e) 
		{
			System.out.println(e.getMessage()+" ["+e.getProblemValue()+"]");
		}
		finally {
		    if (inFile != null) { 
		        System.out.println("Closing inFile");
		        inFile.close(); 
		    } else { 
		        System.out.println("inFile not open");
		    } 
			System.out.println("Total mark so far is: "+totalMark);		
			in.close();
		}
	}
}

/* Rundown 1
 */

/* Rundown 2
 */