Re: Find and Replace Characters in txt File

Maybe I'm doing something wrong... Here's what I have:
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public class test
{
    /* Main Method */
    public static void main(String args[]) throws IOException
    {

         // Promt the user for file name
         BufferedReader console = new BufferedReader(new
InputStreamReader(System.in));
         System.out.println("Enter the file name: ");
         String fileName = console.readLine();

         // Create a file object
         File file = new File(fileName);

         // Declare variables
         StringTokenizer tokenizer;
         String line, element="";
         Vector tokens = new Vector();
         int e1=0;

         try
         {
             // Start reading the file
             FileReader fr = new FileReader(file);
             BufferedReader inFile = new BufferedReader(fr);

             // Read the file till EOF
             while((line = inFile.readLine())!= null)
           {
              tokenizer = new StringTokenizer(line);

               // Checks how many separate parts of the string
               e1 = tokenizer.countTokens();

               for(int count=0; count < e1; count++)
               {
               element = (String)tokenizer.nextToken();
               Double elementD = Double.parseDouble(element);

               // Check for characters
                     char [][] maps = {{'B', '8'}, {'O', '0'}};
                     for (int i = 0; i < maps.length; ++i)
                     {
                      line = line.replace(maps[i][0], maps[i][1]);
                     }

               // Print number
               System.out.println(element);

                    // Store number in array
                    tokens.add(element);
               }
           }

           // Sort the vector elements
           Collections.sort(tokens);

           // Print sorted vector (comma-separated)
           System.out.println(tokens);

             // Print sorted vector elements
             for(int i=0; i<tokens.size(); i++)
             {
                System.out.println((String)tokens.elementAt(i));
             }

             // Close the file
             inFile.close();
         }

         catch(Exception exception)
         {
             System.out.println(exception);
         }

    } /* End Main Method */
}
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And it's giving me a NumberFormatException once it gets to the number
with B instead of 8. That's when it stops.