Java IP Address Validate isIpV4StrValid(String str)

Description

check if IP v4 string is valid.

License

Open Source License

Parameter

Parameter	Description
str	IP string(without *).

Return

true if valid, false if not.

Declaration

public static boolean isIpV4StrValid(String str) 

Method Source Code

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

public class Main {
    /**/*from  w w  w.ja v a 2 s.  co  m*/
     * check if IP v4 string is valid.
     * 
     * @param str
     *            IP string(without *).
     * @return true if valid, false if not.
     */
    public static boolean isIpV4StrValid(String str) {
        Pattern pattern = Pattern.compile(
                "^((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5]" + ")\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])$");
        return pattern.matcher(str).matches();
    }
}

Related

1. isIPv4Format(String ip)
2. isIPv4Format(String str)
3. isIPv4LiteralAddress(String src)
4. isIPv4LiteralAddress(String string)
5. isIpV4PortAddress(String s)
6. isIPv6(final String ip)
7. isIPv6(String address)
8. isIpV6Address(CharSequence address)
9. isIPv6Address(final String input)