Construir uma interface da uma classe TCPCliente

import java.net.*;
import java.io.*;
import java.util.Scanner;

public class TCPClient {
    public static void main(String args[]){
        Socket s = null;

        try{
            int serverPort = 7896;
            s = new Socket("192.168.1.1",serverPort);
            DataInputStream in = new DataInputStream(s.getInputStream());
            DataOutputStream out = new DataOutputStream(s.getOutputStream());

            
            Scanner scan = new Scanner(System.in);
            String men;

            System.out.println("Digite uma mensagem:");
            men = scan.next();
            
            out.writeUTF(men);
                       
            String data = in.readUTF();
            System.out.println("Received:"  + data);
            
          }catch(UnknownHostException e){
            System.out.println("Sock:" +e.getMessage());
          }catch (EOFException e){System.out.println("EOF"+e.getMessage());
          }catch (IOException e){System.out.println("IO:" + e.getMessage());
          } finally { if(s != null) try {s.close();}catch(IOException e){/* close falhou*/}}

        }
    }