/**

* this program shows how easy it is to write code when the comments are descriptive enough and illustrates the * use of Scanner, Files, and try/catch blocks

* @author Elizabeth Adams

* @version 1.3 September 9, 2008

*/

import java.util.Scanner;

import java.io.*;

public class FilePlay

{

public static void main (String [] args)

{

String fileName;

Boolean found;

Scanner keyboard;

FileReader myFileReader;

keyboard = new Scanner (System.in);

// ask user for the name of the input file

2 System.out.println (“ Please enter the name of your file “);

// pick up the user's filename

3 fileName = keyboard.next() OR fileName = keyboard.nextLine();

// want to open that file for input but it’s possible that the file name may not be correct and that the file will not // be found. Will want to loop until it is found

// Use the Boolean variable named found as a flag set it to false

4 found = false;

// while the file is not found loop

5 while (!found)

{

// try to open the file

6 try

{

7 myFileReader = new FileReader (fileName); OR myFileReader = new FileReader (new File (fileName));

// if the file is opened, then it has been found set the Boolean variable to true

8 found = true;

} // end try

// catch the exception thrown if the file is not found

9 catch (FileNotFoundException fnfe)

{

// ask the user to re-enter the name.

10 System.out.println (“ Please re-enter your filename, the file was not found “);

fileName = keyboard.nextLine() OR fileName = keyboard.next();

} // end catch

} // end while

} // end main

} // end class