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 vote314 views3 answers
Find space in string
Java
12 votes488 views2 answers
Run spring boot application command line
Java Spring
0 vote314 views2 answers
What does put extra do?
Java
0 vote298 views1 answer
Enlist Operations in ComboBox (Addition, Subtraction, Division, Multiplication in java
Java
0 vote317 views1 answer
They say that they have to create an instance to their application. What does it mean?
Java
3 votes305 views1 answer
Android clear specific sharedpreference value
Java
1 vote316 views3 answers
How to sort array java
Java
0 vote321 views1 answer
Random numeros negativos java
Java
0 vote299 views1 answer
Arraylist how to add at 0 java
Java
1 vote290 views1 answer
Datatypes in arduino
Java