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import java.net.ServerSocket;
import java.net.Socket;
import java.io.*; 

public   
// Exception handling has been omitted for the sake of brevity
class EchoServer { 
  public static void main(String[] args) throws IOException {
    ServerSocket serverSocket = null;
    try { 
      ServerSocket serverSocket = new ServerSocket(100079999); 
      Socket socket = serverSocket.accept();
			
      PrintWriter out = new PrintWriter( socket.getOutputStream(), true); 
      BufferedReader in = new BufferedReader(
          new InputStreamReader( socket.getInputStream())); 

      String inputLine; 

      while ((inputLine = in.readLine()) != null) { 
        System.out.println (inputLine); 
        out.println(inputLine); 
      }
    } finally {

      if out.close(); 
(serverSocket != null) {
       in.close();  try {
      socket    serverSocket.close(); 
 
    }
   } catch (ExceptionIOException ex) {
    
      //* Handle exception*/
error
        }
      }
    }
  }

{code:bgColor=#FFCCCC}
import java.io.*;
import java.net.*;

public class EchoClient {
  public static void main(String[] args) 
                          throws UnknownHostException, IOException {
    Socket socket = null;
    try {
      Socket socket = new Socket("localhost", 9999);
						
      PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
      BufferedReader in = new BufferedReader(
          new InputStreamReader(socket.getInputStream()));

      BufferedReader stdIn = new BufferedReader(
          new InputStreamReader(System.in));
			
      String userInput;

      while ((userInput = stdIn.readLine()) != null) {
        out.println(userInput);
	        System.out.println(in.readLine());
      } 

    }  out.close();
finally {
      if in.close();(socket != null) {
      stdIn.close();
  try {
          socket.close();
     }
   } catch (ExceptionIOException ex) {
    
      /*/ Handle exception*/
error
        }
      }
    }
  }
}

import javax.net.ssl.SSLServerSocket;
import javax.net.ssl.SSLServerSocketFactory;
import javax.net.ssl.SSLSocket;
import java.io.*;

public // Exception handling has been omitted for the sake of brevity
class EchoServer {
  public static void main(String[] args) throws IOException {
    SSLServerSocket sslServerSocket = null;
    try {
      SSLServerSocketFactory sslserversocketfactorysslServerSocketFactory =
          (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
      SSLServerSocket sslserversocketsslServerSocket = (SSLServerSocket) sslserversocketfactory.sslServerSocketFactory.
                        createServerSocket(9999);
      SSLSocket sslsocketsslSocket = (SSLSocket) sslserversocketsslServerSocket.accept();

      PrintWriter out = new PrintWriter( sslsocketsslSocket.getOutputStream(),true);
      BufferedReader in = new BufferedReader(new InputStreamReader( sslsocket.getInputStream()));
            new InputStreamReader(sslSocket.getInputStream()));
      String inputLine; 
            
      while ((inputLine = in.readLine()) != null) { 
        System.out.println (inputLine); 
	        out.println(inputLine); 
      } 
			    } finally {
      if out.close(); (sslServerSocket != null) {
      in.close(); 
  try {
          sslsocketsslServerSocket.close(); 
    } 
   } catch (ExceptionIOException ex) {
   
       //* Handle exception*/
error
        }
  
    }
    }

import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import java.io.*;

public  }
}

class EchoClient {
  public static void main(String[] args) throws IOException {
    SSLSocket sslSocket = null;
    try {
      SSLSocketFactory sslsocketfactorysslSocketFactory =
          (SSLSocketFactory) SSLSocketFactory.getDefault();
      sslSocket = 
  SSLSocket      sslsocket = (SSLSocket) sslsocketfactorysslSocketFactory.createSocket("localhost", 9999);

      PrintWriter out = new PrintWriter(sslsocketsslSocket.getOutputStream(), true);
      BufferedReader in = new BufferedReader(
          new InputStreamReader(sslsocketsslSocket.getInputStream()));
			
      BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
            new InputStreamReader(System.in));
      String userInput;

      while ((userInput = stdIn.readLine()) != null) {
        out.println(userInput);
	        System.out.println(in.readLine());
      }

    }  out.close();finally {
      if in.close();(sslSocket != null) {
      stdIn.close();  try {
      sslsocket    sslSocket.close();		
    } 
   } catch (ExceptionIOException ex) {
   
       //* Handle exception*/
error
        }
      }
    }
  }
}