/***************************************************
 *Demonstrates use of the class File with text files.
 ***************************************************/
import java.io.*;

public class FileClassDemo2
{
    public static void main(String[] args)
    {
        String name = null;
        File fileObject = null;
     
        System.out.println("I will show you the first line");
        System.out.println("in a text file you name.");
        System.out.println("The file must contain one or more lines.");
     
        System.out.println("Enter file name:");
        name = SavitchIn.readLineWord(); 
        fileObject = new File(name);
        while (( ! fileObject.exists()) || ( ! fileObject.canRead()))
        {
           if ( ! fileObject.exists()) 
              System.out.println("No such file");
           else if ( ! fileObject.canRead())
              System.out.println("That file is not readable.");
           System.out.println("Enter file name again:");
           name = SavitchIn.readLineWord(); 
           fileObject = new File(name);
        }

        try
        {
           BufferedReader fileInput = 
                  new BufferedReader(new FileReader(name));
           System.out.println("The first line in the file is:");
           String firstLine = fileInput.readLine();
           System.out.println(firstLine);
           fileInput.close();
       }
       catch(IOException e)
       {
          System.out.println("Problem reading from file.");
       }
    }
}