import java.net.*;

import java.io.*;

public class JavaServer {

             private int port=8088;

             private ServerSocket servSocket;

             private Socket clntSocket;

             public void listen(){

                           try {

                                        servSocket=new ServerSocket(port);

                                        clntSocket=servSocket.accept();

                           } catch (IOException e) {

                                        System.out.println("IOException :"+e.getMessage());

                           }           

             }

             public void handleConnection(){

                           try {

                                        BufferedReader br=new BufferedReader(new InputStreamReader(

clntSocket.getInputStream()));

                                        PrintWriter pw=new PrintWriter(clntSocket.getOutputStream(), true);

                                        System.out.println("Java서버가 "

+clntSocket.getInetAddress().getHostName()

                                                                      +"와 잘 연결되었습니다");

                                        System.out.println("첫 번째 입력 라인은 "+br.readLine()+"입니다. ");

                                        pw.println("Java서버에 잘 연결 되었습니다.");

                                        clntSocket.close();

                           } catch (IOException e) {

                                        e.printStackTrace();

                           }                        

             }

             public static void main(String[] args){

                           JavaServer jServer=new JavaServer();

                           jServer.listen();

                           jServer.handleConnection();

             }

}

import java.net.*;

import java.io.*;

public class JavaClient {

             private Socket cSocket;

             public JavaClient(String addr, int port){

                           try {

                                        cSocket=new Socket(addr, port);

                           } catch (IOException e) {

                                        e.printStackTrace();

                           }

             }

             public void handleConnection(){

                           try {

                                        BufferedReader br=new BufferedReader(new InputStreamReader

(cSocket.getInputStream()));

                                        PrintWriter pw=new PrintWriter(cSocket.getOutputStream(), true);

                                        System.out.println("Java 클라이언트가"+

                                                     cSocket.getInetAddress().getHostName()+"에 연결되었습니다");                                                                                                                           

                                        pw.println("여기는 Java 클라이언트입니다.");

System.out.println("서버로부터의 첫 입력라인은 "+br.readLine()+"입니다");                                                                    

                                        cSocket.close();

                           } catch (IOException e) {

                                        e.printStackTrace();

                           }

             }

             public static void main(String[] args){

                           String addr="127.0.0.1";

                           int port=8088;

                           JavaClient jClient=new JavaClient(addr, port);

                           jClient.handleConnection();

             }

}