Update JavaRegex.java

[AMITKUMAR6549]

Pull Request Discussion

Summary of Changes

I've made modifications to the code to enhance the regular expression pattern for validating IP addresses. I've replaced the existing pattern with a more concise and accurate one.

Changes Made

• Updated the regular expression pattern to be more robust and accurate for IP address validation.
• Improved the readability and maintainability of the code.

Benefits of the Changes

The new regular expression pattern is more concise and easier to understand.
It accurately validates IP addresses according to the specified rules.
GitHub Repository
Link to the GitHub repository

Reason for Changes

The previous code was working correctly but the regular expression pattern was quite complex and could be simplified. I've optimized it to improve maintainability and reduce the chance of errors.

Request for Review

I kindly request a review of the changes I've made. Your feedback is valuable to ensure the code is accurate and follows best practices.

Thank you for your time and consideration.

Full Updated Code (Class MyRegex)

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();
            boolean isValid = IP.matches(new MyRegex().pattern);
            System.out.println(isValid);
        }
    }
}

class MyRegex {
    String num = "([01]?\\d{1,2}|2[0-4]\\d|25[0-5])";

    // Construct the pattern using the defined numeric segment
    String pattern = num + "." + num + "." + num + "." + num;
}