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

  • degwekaratharva
     + 0 comments

    import java.util.Scanner; import java.util.regex.Pattern;

    public class DuplicateWords {

    public static void main(String[] args) {
    final String regex = "\\b(\\w+)(\\s+\\1\\b)+";
    final Pattern p = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);

    final Scanner in = new Scanner(System.in);
    int numSentences = Integer.parseInt(in.nextLine());

    while (numSentences-- > 0) {
        String input = in.nextLine();
        // Replace all duplicates with first occurrence
        input = p.matcher(input).replaceAll("$1");
        System.out.println(input);
    }

    This is the code I am getting the o/p same as shown but still getting the wrong answer.

        in.close();
}

    }