Validate IP Address with Port using Java Regular Expression

Ip Address Validator Regular Expression Pattern

(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?):(\\d{1,5})

Regular ExpressionDescription


for more regular expression syntax refer Java Regular Expression Syntax Descriptions 

IpAddressValidator .java

view source

print?

01.package com.javatutorialcorner.regex;

02. 

03.import java.util.regex.Matcher;

04.import java.util.regex.Pattern;

05. 

06.public class IpAddressValidator {

07. private static final String PATTERN = "(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?):(\\d{1,5})";

08. 

09. public static void main(String[] args) {

10. 

11.  System.out.println("Validate  192.1.1.1:8 "+validate("192.1.1.1:8"));

12.  System.out.println("Validate  192.10.10.10:80 "+validate("192.10.10.10:80"));

13.  System.out.println("Validate 192.100.100.100:443 "+validate("192.100.100.100:443"));

14.  System.out.println("Validate 255.255.255.255:8080"+validate("255.255.255.255:8080"));

15.  System.out.println("Validate 255.255.255.255:80800"+validate("255.255.255.255:80800"));

16.  System.out.println("Validate 255.255.255.255:808000"+validate("255.255.255.255:808000"));

17.  System.out.println("Validate 255.255.255.256: "+validate("255.255.255.256:"));

18.  System.out.println("Validate 255.255.256.255 "+validate("255.255.256.255"));

19. 

20. }

21. 

22. private static boolean validate(String password) {

23.  Pattern pattern = Pattern.compile(PATTERN);

24.  Matcher matcher = pattern.matcher(password);

25.  return matcher.matches();

26. 

27. }

28. 

29.}

Output : 

Validate  192.1.1.1:8 trueValidate  192.10.10.10:80 trueValidate 192.100.100.100:443 trueValidate 255.255.255.255:8080trueValidate 255.255.255.255:80800trueValidate 255.255.255.255:808000falseValidate 255.255.255.256: falseValidate 255.255.256.255 false

Java RegEx Regular Expression 3/26/2017 07:07:00 pm