Hackerrank - Java Solution - Java Regex Solution

Hackerrank - Java Solution - Java Regex Solution

Problem Name - Java Regex
Problem Link -  Java Regex 
Level - String

Java Only Submitted Code

/*
     [01]?\\d{1,2}   matches numbers 0-199.
     2[0-4]\\d       matches numbers 200-249
     25[0-5]         matches numbers 250-255
*/
class MyRegex {
    String num = "([01]?\\d{1,2}|2[0-4]\\d|25[0-5])";
    String pattern = num + "." +  num + "." +  num + "." + num;
}

Java Full Source Code

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));
        }

    }
}
/*
     [01]?\\d{1,2}   matches numbers 0-199.
     2[0-4]\\d       matches numbers 200-249
     25[0-5]         matches numbers 250-255
*/
class MyRegex {
    String num = "([01]?\\d{1,2}|2[0-4]\\d|25[0-5])";
    String pattern = num + "." +  num + "." +  num + "." + num;
}

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