Android IP Address Get getIPV4NetwprkOrder(String theIp)

Description

turn ip in string representation to byte array in network order.

Parameter

Parameter	Description
theIp	a parameter

Exception

Parameter	Description
UnknownHostException	an exception

Return

ip as byte array

Declaration

public static byte[] getIPV4NetwprkOrder(String theIp)
        throws UnknownHostException 

Method Source Code

//package com.java2s;
import java.net.UnknownHostException;

public class Main {
    private static final int IPV4_ADDRESS_LEN = 4;

    /**/*from   w ww .j ava2s  .  c  o  m*/
     * turn ip in string representation to byte array in network order.
     * @param theIp
     * @return ip as byte array
     * @throws UnknownHostException
     */
    public static byte[] getIPV4NetwprkOrder(String theIp)
            throws UnknownHostException {
        byte[] toReturn = new byte[IPV4_ADDRESS_LEN];

        String[] fields = theIp.split("\\.");

        if (fields == null || fields.length < IPV4_ADDRESS_LEN)
            throw new UnknownHostException();

        for (int i = 0; i < fields.length; i++) {
            toReturn[i] = (byte) Integer.parseInt(fields[i]);
        }
        return toReturn;
    }
}

Related

1. getTargetInetaddress(String target)
2. getDevicesMac(Context context)
3. getDevicesIP(Context context)
4. getIPs()
5. getIPv4StringByStrippingIPv6Prefix(String in)