Redex 2 solution matcher

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

public class DuplicateWords {

    public static void main(String[] args) {

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

        Scanner in = new Scanner(System.in);
        int numSentences = Integer.parseInt(in.nextLine());
        
        while (numSentences-- > 0) {
            String input = in.nextLine();
            
            Matcher m = p.matcher(input);
            
            // Check for subsequences of input that match the compiled pattern
            while (m.find()) {
                input = input.replaceAll(m.group(), m.group(1));
            }
            
            // Prints the modified sentence.
            System.out.println(input);
        }
        
        in.close();
    }
}

Source: hackerrank.com

Similar codes

0 vote150 views1 answer
Spring security controlleradvice
Java
0 vote102 views1 answer
Java filter list based on unique value
Java
-1 vote135 views2 answers
Java casting method
Java
2 votes133 views1 answer
Java split for multiple characters
Java
0 vote154 views1 answer
How to take array as an argument in java
Java
0 vote145 views1 answer
Stop countdown timer when exiting an activity
Java
0 vote134 views2 answers
Java find index of first alpha character in string
Java
0 vote143 views3 answers
Tostring java
Java
0 vote139 views1 answer
Mobile network ip address permission android
Java
0 vote145 views1 answer
Redshift establish connection jav gradle
Java