import java.io.*;
import java.util.*;

public class FileNameExercise
{
   public static void main(String[] args)
   {
      String fileName = null;//to use fileName in catch block,
                        //must declare it outside of try block.
      try
      {
         System.out.println("Enter file name:");
         Scanner keyboard = new Scanner(System.in);
         fileName = keyboard.next( );
         ObjectInputStream inputStream =
                       new ObjectInputStream(
                            new FileInputStream(fileName));
         System.out.println("The first thing in the file");
         System.out.println(fileName + " is");
         String first = inputStream.readUTF( );
         System.out.println(first);
         inputStream.close( );
      }
      catch(IOException e)
      {
         System.out.println("Problem with input from file "
                                + fileName);
      }
    }
}