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

12 votes197 views2 answers
Reading from a text file in java
Java
4 votes200 views2 answers
Remove action bar android studio
Java
0 vote231 views1 answer
Nonnull annotation in java
Java
4 votes198 views2 answers
How run a code to the cmd from a java code
Java
1 vote193 views2 answers
Java double to long
Java
4 votes298 views2 answers
Android java remove action bar
Java
0 vote334 views1 answer
P=
Java
0 vote197 views1 answer
Comvertir a java
Java
1 vote198 views1 answer
Android application class
Java
18 votes195 views5 answers
String join
Java