/Java/Java Regex 2 - Duplicate Words in java

Java Regex 2 - Duplicate Words in java

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

30 votes136 views6 answers
For loop java
Java
2 votes152 views1 answer
Java random primary key
Java
4 votes154 views6 answers
Java do while loop
Java
0 vote146 views1 answer
Public void add(int index e element)
Java
1 vote142 views2 answers
Codeforces - 570b java
Java
0 vote145 views1 answer
Java pause program until key pressed
Java
0 vote140 views1 answer
Java insert char in string at index
Java
6 votes168 views1 answer
How to select a random element from an array in java
Java
0 vote143 views1 answer
Console java echo hello you
Java
0 vote157 views1 answer
Android java string video
Java