android – Good day, How one can convert java code to be accessible on iOS?

English just isn’t my native language; please excuse typing errors.

Now have Java code
How can I obtain the identical operate on iOS (iOS initiatives use GCDAsyncSocket to implement socket communication)

import java.internet.DatagramPacket;
import java.internet.DatagramSocket;
import java.internet.InetAddress;

public class teststr {
    public static void predominant(String[] args) {
        wakeup();
    }
    public static void wakeup(){

        String mac = "00:30:64:6b:5f:9c"; //mac地址
        attempt {

            int port = 9;
            byte[] macByte = new byte[6];
            String[] ips = mac.break up(":|-");
            for (int i = 0; i < 6; i++) {

                macByte[i] = (byte) Integer.parseInt(ips[i], 16);
            }
            // 用来存储网络唤醒数据包
            byte[] bys = new byte[6 + 16 * macByte.length];
            for (int i = 0; i < 6; i++) {

                bys[i] = (byte) 0xff;
            }
            for (int i = 6; i < bys.size; i += macByte.size) {
                System.arraycopy(macByte, 0, bys, i, macByte.size);
            }
            // 将字符形式的IP地址转换成标准的IP地址
            InetAddress handle = InetAddress.getByName("192.168.100.255");
//            InetAddress handle = InetAddress.getByName("255.255.255.255");
            // 生成标准的数据报
            DatagramPacket pack = new DatagramPacket(bys, bys.size, handle, port);
            // 创建标准套接字，用来发送数据报
            DatagramSocket socket = new DatagramSocket();
            // 发送魔法包
            socket.ship(pack);
            socket.shut();
        } catch (Exception e) {
            e.printStackTrace();
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }
}

I hope somebody who is aware of java and iOS will come and have a look