Java IP Address Validate isIpv4(String ipv4)

Description

is Ipv

License

Apache License

Declaration

public static boolean isIpv4(String ipv4) 

Method Source Code

//package com.java2s;
/**/*from w  w  w  .j a  v a2  s.  c  o m*/
 * Copyright 2013-present febit.org (support@febit.org)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.regex.Pattern;

public class Main {
    protected final static Pattern REGX_IP = Pattern
            .compile("^(\\d|[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}$");

    public static boolean isIpv4(String ipv4) {
        if (ipv4 == null) {
            return false;
        }
        return REGX_IP.matcher(ipv4).matches();
    }
}

Related

1. isIpAddress(String str)
2. isIPAndPort(String text)
3. isIpFormat(String ip)
4. isIPSect(String ip)
5. isIPString(String str)
6. isIpV4Address(CharSequence address)
7. isIPv4Address(final String input)
8. isIPv4Address(final String input)
9. isIPv4Address(String ipAddress)