Java IP Address Validate isIpAddress(String addr)

Description

is Ip Address

License

Apache License

Declaration

public static boolean isIpAddress(String addr) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

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

public class Main {

    public static boolean isIpAddress(String addr) {
        if (addr.length() < 7 || addr.length() > 15 || "".equals(addr)) {
            return false;
        }//w  ww .  ja  v a2  s . c  o m
        String rexp = "([1-9]|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3}";
        Pattern pat = Pattern.compile(rexp);
        Matcher mat = pat.matcher(addr);
        boolean ipAddress = mat.find();
        return ipAddress;
    }
}

Related

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