metoda start()

import java.io.*;
import java.net.*;
import java.time.LocalTime;
import java.time.temporal.ChronoUnit;
import static java.time.LocalDate.now;

public class ServerApp
{
    String name = "Server";


        public class Watek1 implements Runnable
        {

            @Override
            public void run() {
                LocalTime minutes = LocalTime.now();
                minutes = minutes.truncatedTo(ChronoUnit.MINUTES);

                try {

                    ServerSocket s = new ServerSocket(3001);
                    System.out.println("Czekamy na połączenie...");
                    Socket server = s.accept();

                    DataOutputStream dos2 = new DataOutputStream(server.getOutputStream());
                    dos2.writeUTF("(" + String.valueOf(minutes) + ")" + name + ": " + "Klient został podłączony " + server.getInetAddress().getHostName());

                    System.out.println(("Klient został podłączony " + server.getInetAddress().getHostName()));

                } catch (IOException e) {
                    System.out.println("error: IOException");
                }
            }
        }


        public static void main(String[] args)
        {
            
        }



}

import java.io.*;
import java.net.*;
import java.time.LocalTime;
import java.time.temporal.ChronoUnit;
import static java.time.LocalDate.now;

public class ServerApp
{

    public static class MyRunnable implements Runnable
    {

        @Override
        public void run() 
        {
            String name = "Server";

            LocalTime minutes = LocalTime.now();
            minutes = minutes.truncatedTo(ChronoUnit.MINUTES);

            try
            {

                ServerSocket s = new ServerSocket(3001);
                System.out.println("Czekamy na połączenie...");
                Socket server = s.accept();

                DataOutputStream dos2 = new DataOutputStream(server.getOutputStream());
                dos2.writeUTF("(" + String.valueOf(minutes) + ")" + name + ": " + "Klient został podłączony " + server.getInetAddress().getHostName());

                System.out.println(("Klient został podłączony " + server.getInetAddress().getHostName()));

            }
            catch (IOException e)
            {
                System.out.println("error: IOException");
            }
        }


    }

    public static void main(String[] args)
    {
        Thread myThread = new Thread(new MyRunnable(), "MyThread");
        myThread.getName();
        myThread.start();
    }

}