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 vote66 views1 answer
Creating new objects from loop java
Java
0 vote101 views1 answer
Super class java
Java
1 vote126 views1 answer
String by byte array in java
Java
103 votes168 views5 answers
Switch expression java
Java
0 vote147 views1 answer
Java list change element position
Java
1 vote104 views1 answer
Java divisible by operator
Java
0 vote121 views1 answer
Save SQLite returned data to an object list
Java
0 vote114 views1 answer
Java check if string ends with
Java
0 vote133 views1 answer
Fab icon color
Java
0 vote107 views1 answer
Java check if 3 strings are equal
Java