Java IP Address Validate isIPAddress(String ipAddress)

Description

is IP Address

License

Open Source License

Declaration

public static boolean isIPAddress(String ipAddress) 

Method Source Code

//package com.java2s;
/*//from  w ww . j av  a  2  s.c o  m
 * xAuth for Bukkit
 * Copyright (C) 2012 Lycano <https://github.com/lycano/xAuth/>
 *
 * Copyright (C) 2011 CypherX <https://github.com/CypherX/xAuth/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

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

public class Main {
    public static boolean isIPAddress(String ipAddress) {
        if (ipAddress == null)
            return false;

        Pattern pattern = Pattern.compile("\\b" + "((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])\\."
                + "((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])\\."
                + "((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])\\."
                + "((?!\\d\\d\\d)\\d+|1\\d\\d|2[0-4]\\d|25[0-5])" + "\\b");
        Matcher matcher = pattern.matcher(ipAddress);
        return matcher.matches();
    }
}

Related

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