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

public class Main
{
	public static void processFile(String fname) throws FileNotFoundException, InputMismatchException 
	{
		Scanner inFile = new Scanner(new File(fname));
		int x = inFile.nextInt();
		System.out.println("Data is: "+x);

		inFile.close();

	}

	public static void main(String[] args) 
	{
		Scanner in = new Scanner(System.in);

		boolean shouldEnd=false;

		while (!shouldEnd)
		{
			try 
			{
				System.out.print("Input the file pathname: ");
				String fname = in.next();
				processFile(fname);
				shouldEnd=true;
			} 
			catch (FileNotFoundException e) 
			{
				System.out.println("Cannot open the file.");
				System.out.print("Try another file?  Type your choice [y/n]: ");
				shouldEnd=(in.next().charAt(0)=='n');
			} 
			catch (InputMismatchException e) 
			{
				System.out.println("Cannot read the required number from the opened file.");
				System.out.print("Try another file?  Type your choice [y/n]: ");
				shouldEnd=(in.next().charAt(0)=='n');
			}
		}
		in.close();

	}
}


/* Rundown 1
Input the file pathname: i:\data002.txt
Cannot read the required number from the opened file.
Try another file?  Type your choice [y/n]: y
Input the file pathname: i:\data01.txt
Cannot open the file.
Try another file?  Type your choice [y/n]: y
Input the file pathname: i:\data001.txt
Data is: 678
 */

/* Rundown 2
Input the file pathname: i:\data02.txt
Cannot open the file.
Try another file?  Type your choice [y/n]: y
Input the file pathname: i:\data01.txt
Cannot open the file.
Try another file?  Type your choice [y/n]: n
 */