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  4. Java Regex 2 - Duplicate Words
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Java Regex 2 - Duplicate Words

  • corinv181
     + 0 comments

    public static void main(String[] args) {

        String regex = "\\b(\\w+)(?: +\\1)+\\b";
    Pattern p = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);

    Scanner in = new Scanner(System.in);
    int numSentences = Integer.parseInt(in.nextLine());
    int i=0;
    while (i<numSentences) {
        String input = in.nextLine(); 
        Matcher m = p.matcher(input);
        input = m.replaceAll("$1");

        // Prints the modified sentence.
        System.out.println(input);
        i++;
    }

    in.close();
}