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  1. #1
    Cod is offline Member
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    Nov 2009
    Honolulu, HI
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    Default Issue With Finding Total Number of Blank Spaces in File

    The goal of my assignment is to count the number of characters (w/o spaces and returns), words, and lines of a text document. The document is read-in and analyzed from there. I've got the reading in of the file working as well as the line counter; however, I've run into significant troubles with counting the characters. I can obtain the total number of characters, but I need to get a number without counting the spaces and returns. Here is what I've got thus far...

    Java Code:
    public class Counter {
      public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader (new InputStreamReader(;
        // Read in all variables
        String document;
        long characterCount = 0;
        int spaces = 0;
        int wordCount = 0;
        int lineCount = 0;
          // Ask user to enter document title with extenstion. Then convert file for finding required information.
          System.out.println("Please enter the file name with extension: ");
          document = br.readLine();
          File file = new File(document);
          FileReader fr = new FileReader(file);
    [COLOR="Red"]      // Find total number of characters within document
          characterCount = file.length();
          for (int i = 0; i < characterCount; i++) {
            if (document.charAt(i) == ' '); {
          characterCount = (characterCount - spaces);
          // Find total number of words within document
          // Find total number of lines within document
          LineNumberReader lnr = new LineNumberReader(fr);
          while (lnr.readLine() != null) {
          // Print output of require information
          System.out.println("Number of characters in document: " + characterCount);
          System.out.println("Number of words in document: " + wordCount);
          System.out.println("Number of lines in document: " + lineCount);

    As far as the error message is concerned, it pertains to the portion of the code in red and reads:

    Java Code:
    [I]java.lang.StringIndexOutOfBoundsException: String index out of range: 8
    	at java.lang.String.charAt(Unknown Source)
    	at Counter.main([/I]

    Any guidance would be greatly appreciated.
    Last edited by Cod; 12-10-2009 at 12:05 PM. Reason: Grammar and mistakes in code

  2. #2
    Fubarable's Avatar
    Fubarable is offline Moderator
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    document is the file name. It's not all the text in the file. You're going to need to analyze each line one at a time as you read it in.

  3. #3
    Cod is offline Member
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    Nov 2009
    Honolulu, HI
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    That make sense Fubarable, weird I didn't catch that. Thanks for pointint me in the right direction. Just got the program figured out this morning and everything is working smoothly.

    Thanks again.

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