Port Scanner

package me.darkboy.portscanner;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.InetSocketAddress;
import java.net.Socket;

public class Main {

    public static void main(String[] args) {
        for (int i = 10000; i <= 65535; i++) {
            scan("localhost", i);
        }
    }

    private static void scan(String ip, int port) {
        boolean serverUp;
        String[] serverData;
        String rawServerData;
        try {
            Socket clientSocket = new Socket();
            clientSocket.connect(new InetSocketAddress(ip, port), 5);
            DataOutputStream dos = new DataOutputStream(clientSocket.getOutputStream());
            BufferedReader br = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
            byte[] payload = {(byte) 0xFE, (byte) 0x01};
            dos.write(payload, 0, payload.length);
            rawServerData = br.readLine();
            clientSocket.close();
        } catch (Exception e) {
            System.out.println("Server Is Offline!");
            return;
        }

        if (rawServerData == null) {
            serverUp = false;
        } else {
            serverData = rawServerData.split("\u0000\u0000\u0000");
            serverUp = serverData.length >= 6;
        }

        if (serverUp) {
            System.out.println("Server Is Online!");
        } else {
            System.out.println("Server Is Offline!");
        }
    }
}