We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Java
  3. Strings
  4. Java Regex
  5. Discussions

Java Regex

Sort by

recency

|

645 Discussions

|

  • kushkapoor6707
     + 0 comments

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

    class Solution{

    public static void main(String[] args){
    Scanner in = new Scanner(System.in);
    while(in.hasNext()){
        String IP = in.next();
        System.out.println(IP.matches(new MyRegex().pattern));
    }

}

    } public class MyRegex { public static void main(String[] args) { MyRegex regex = new MyRegex(); Scanner scanner = new Scanner(System.in);

        while (scanner.hasNext()) {
        String ip = scanner.next();
        // Validate the IP against the regex pattern
        System.out.println(ip.matches(new MyRegex().pattern));
    }

    scanner.close();
}

    }

  • ing_urirmz
     + 0 comments
    class MyRegex {
    private String patternFor256 = "([01]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])";
    public String pattern = String.format("%1$s.%1$s.%1$s.%1$s", patternFor256);
}

  • AlphaVolk77
     + 0 comments

    my solution:

    import java.io.*;
import java.util.*;

public class Solution {

        public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        while(sc.hasNext())
        {
            String IP = sc.next();
            System.out.println(IP.matches(new MyRegex().pattern));
        }

    }
}

class MyRegex {

    String pattern = "^(([0-1]?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\\.){3}(([0-1]?[0-9][0-9]?|2[0-4][0-9]|25[0-5]))$";
}

  • pmvyavhare
     + 0 comments

    class MyRegex{ String pat = "([01]?[0-9]?[0-9]?|2[0-4]?[0-9]|2[0-5]?[0-5?])"; String pattern = "^" + pat + "\." + pat + "\." + pat + "\." + pat ; }

    Here pat accepts number string only ranges between 0 to 255. Pattern make sures that IP addr should start with number 0 to 255 and "\." add point between numbers.

  • marcos_sanzlara
     + 0 comments
    class MyRegex {
    String pattern = "\\b(?:(?:25[0-5]|2[0-4]\\d|1\\d{2}|0?\\d{1,2})\\.){3}(?:25[0-5]|2[0-4]\\d|1\\d{2}|0?\\d{1,2})\\b";
}