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  1. Prepare
  2. Regex
  3. Assertions
  4. Negative Lookbehind
  5. Discussions

Negative Lookbehind

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  • mohamedhari317
     + 0 comments
    Regex_Pattern = r"(?<![aeouiAEOUI])."

  • TammyFrazier4
     + 0 comments

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  • preethiannjacob
     + 0 comments

    Java 15:

    import java.io.*;
import java.util.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
public class Solution {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Pattern pattern = Pattern.compile("(?<![aeiouAEIOU])(.)");
        Matcher matcher = pattern.matcher(scanner.nextLine());
        int count = 0; 
        while(matcher.find())   count++;
        System.out.println("Number of matches : "+count);
    }
}

  • lift_rankers
     + 0 comments

    Regex_Pattern = r"(?

  • budropestu
     + 0 comments

    With Python

    Regex_Pattern = r"(?<![aoueiAEIOU])."