//BinaryInputDemo2.java

import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.io.EOFException;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;

public class BinaryInputDemo2
{
    public static void main(String[] args)
    {
        System.out.print("Enter file name: ");
        Scanner keyboard = new Scanner(System.in);
        String fileName = keyboard.next();

        try
        {
            ObjectInputStream inputStream =
                  new ObjectInputStream(new FileInputStream(fileName));
            System.out.println("Reading the nonnegative integers");
            System.out.println("in the file " + fileName);
            int anInteger = inputStream.readInt();
            while (anInteger >= 0)
            {
                System.out.println(anInteger);
                anInteger = inputStream.readInt();
            }
            System.out.println("End of reading from file.");
            inputStream.close();
        }
        catch (FileNotFoundException e)
        {
            System.out.println("Problem opening the file " + fileName);
        }
        catch (EOFException e)
        {
            System.out.println("Problem reading the file " + fileName);
            System.out.println("Reached end of the file.");
        }
        catch (IOException e)
        {
            System.out.println("Problem reading the file " + fileName);
        }
    }
}