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Thread: Removing punctuation characters from a word [Beginner Java]

  1. #1
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    Lightbulb Removing punctuation characters from a word [Beginner Java]

    I have these 2 methods. What I'm currently having troubles is with the cleanWord method. What it can do now is remove only one punctuation either in front or at the back of the string or at both ends. What I'm trying to figure out is how to remove multiple punctuation characters at one go? For example "!!!test" will return "test" after implementing the method. Thank you!

    [but do not clean punctuation found in the middle of the word for example "don't"]
     public static String cleanWord(String word)
        {
            String cleanWord = word;
            int wordLength = cleanWord.length();
     
            if (isPunctuation(cleanWord.charAt(0)) == true) {
                cleanWord = cleanWord.substring(1, wordLength);
                if (isPunctuation(cleanWord.charAt(wordLength - 1)) == true) {
                    cleanWord = word.substring(1, wordLength - 1);
                }
            }
     
            else if (isPunctuation(word.charAt(wordLength - 1)) == true) {
                cleanWord = cleanWord.substring(0, wordLength - 1);
            }    
     
            return cleanWord;
        }
     
     
        public static boolean isPunctuation(Character c) 
        {
            boolean isPunctuation = false;
            String[] punctuationList = PUNCTUATION.split("");
            String d = c.toString();
     
            for (String punctuation : punctuationList) {
                if (d.equals(punctuation)) {
                    isPunctuation = true;
                }
            }
     
            return isPunctuation;
        }
    Last edited by starlest; May 8th, 2013 at 10:12 AM. Reason: Solved


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Removing punctuation characters from a word [Beginner Java]

    Please edit your post and wrap your code with code tags:
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.

    how to remove multiple punctuation characters at one go?
    What does "at one go" mean? Are you trying to write a method that will take a String, remove all punctuation characters and return a new String with them removed.

    Can you post some examples?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Removing punctuation characters from a word [Beginner Java]

    Quote Originally Posted by Norm View Post
    Please edit your post and wrap your code with code tags:
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.


    What does "at one go" mean? Are you trying to write a method that will take a String, remove all punctuation characters and return a new String with them removed.

    Can you post some examples?
    Yep for example "!test,." will return "test". I'm just having troubles removing multiple punctuation characters before or after the word. Removing single punctuation character is not a problem. Thanks!

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    Super Moderator Norm's Avatar
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    Default Re: Removing punctuation characters from a word [Beginner Java]

    If the parts of the String to be saved are contiguous, then the String class's substring method can return it.
    Scan in from either end to find the start/end of the String to be saved.
    If you don't understand my answer, don't ignore it, ask a question.

  5. #5
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    Default Re: Removing punctuation characters from a word [Beginner Java]

    Quote Originally Posted by Norm View Post
    If the parts of the String to be saved are contiguous, then the String class's substring method can return it.
    Scan in from either end to find the start/end of the String to be saved.
    Thanks a lot! Solved!

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