java consonant regex

To match consonants in a string using a regular expression in Java, you can use the following pattern:

"[bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ]"

This pattern uses a character class to match any uppercase or lowercase consonant.

Here is an example of how you can use this regular expression to find all consonants in a string in Java:

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
  public static void main(String[] args) {
    String input = "Hello, world!";
    String pattern = "[bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ]";

    Pattern p = Pattern.compile(pattern);
    Matcher m = p.matcher(input);

    while (m.find()) {
      System.out.println("Found consonant: " + m.group());
    }
  }
}

In this example, we use the Pattern.compile and Matcher.matcher methods to create a Pattern object and a Matcher object for the regular expression. We then use the Matcher.find method in a loop to find all occurrences of the pattern in the input string, and print each matching consonant to the console.