Java

while (!Thread.currentThread().isInterrupted()) {
			try (Socket socket = new ServerSocket(init()).accept()) {
		        new Thread(new Runnable() {
		            @Override
		            public void run() {
		                while (true) {
							try (BufferedReader fromClient = new BufferedReader(new InputStreamReader(socket.getInputStream(), StandardCharsets.US_ASCII));
								 DataOutputStream outToClient = new DataOutputStream(socket.getOutputStream());	) { 
								outToClient.write(autocomplete(fromClient.readLine()).getBytes("US-ASCII"));
							} catch (IOException e) { Logger.getLogger(Server.class.getName()).log(Level.SEVERE, null, e.getMessage()); }
		                }
		            }
		        }).start();
		    
		} catch (IOException ex) { Logger.getLogger(Server.class.getName()).log(Level.SEVERE, null, ex.getMessage()); } 
	    }

final ExecutorService service = Executors.newCachedThreadPool();
		while(!Thread.currentThread().isInterrupted()) {
			 service.submit(new Runnable() {
			  public void run() {
				  try (Socket socket = new ServerSocket(init()).accept();
					   BufferedReader fromClient = new BufferedReader(new InputStreamReader(socket.getInputStream(), StandardCharsets.US_ASCII));
					   DataOutputStream outToClient = new DataOutputStream(socket.getOutputStream());) { 
							outToClient.write(autocomplete(fromClient.readLine()).getBytes("US-ASCII"));
						} catch (IOException e) { 
								service.shutdown(); 
								Logger.getLogger(Server.class.getName()).log(Level.SEVERE, null, e.getMessage()); 
							}
			  }
			 });
		}

public static void main(String[] args)
{

int number=0; //save elements the array
String [] names = {"Pedro","Maria", "Nancy","Pinto" };
for (int i =0; i < names.length; i++) {
    names[number]=names[i];
}
number--; //remove position
System.out.println(Arrays.toString(names));
}