Java IP Address Validate isIP(String str)

Description

is IP

License

Open Source License

Declaration

public static boolean isIP(String str) 

Method Source Code

//package com.java2s;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

    public static boolean isIP(String str) {
        String num = "(25[0-5]|2[0-4]\\d|[0-1]\\d{2}|[1-9]?\\d)";
        String regex = "^" + num + "\\." + num + "\\." + num + "\\." + num + "$";
        return match(regex, str);
    }/*from   w w w  .ja va2s.  co m*/

    private static boolean match(String regex, String str) {
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(str);
        return matcher.matches();
    }
}

Related

1. isIP(String ip)
2. isIp(String ipAddress)
3. isIP(String ipString)
4. isIp(String s)
5. isIP(String src)
6. isIp(String str)
7. isIp(String str)
8. isIP4(String val)
9. isIPAddress(final String s)