package morepeople; 

Import the Java. IO. BufferedReader; 
Import the Java. IO. IOException; 
Import the Java. IO. InputStream; 
Import the Java. IO. InputStreamReader; 
Import the Java. IO. OutputStream; 
Import the Java. IO. PrintStream; 
The import java.net.ServerSocket; 
The import java.net.Socket; 

Public class testServer {

Public static void main (String [] args) throws IOException {
//TODO Auto - generated method stub 
ServerSocket server=new ServerSocket (9999); 

A Boolean flag=true; 
While (flag) {
The Socket Socket=server. The accept (); 
MessageHander mh=new MessageHander (socket); 

Mh. Start (); 

} 
Server. The close (); 
} 

} 

The class MessageHander extends Thread {

private Socket socket; 

Public MessageHander (Socket Socket) {
super(); 
This. The socket=socket; 
} 

@ Override 
Public void the run () {
Try {
InputStream=in the socket. GetInputStream (); 
InputStreamReader isr=new InputStreamReader (in); 
BufferedReader br=new BufferedReader (isr); 

OutputStream out=socket. GetOutputStream (); 
PrintStream ps=new PrintStream (out); 

The String word; 

While ((word=br. ReadLine ())!=null) {
If (" bye ". The equals (word)) {
break; 
} 
The StringBuilder sb=new StringBuilder (word); 
Sb. Reverse (); 

Ps. Println (sb. ToString ()); 
} 

} the catch (IOException e) {
//TODO Auto - generated the catch block, 
e.printStackTrace(); 
} the finally {
Try {
socket.close(); 
} the catch (IOException e) {
//TODO Auto - generated the catch block, 
e.printStackTrace(); 
} 
} 
} 

} 

 package morepeople; 
Import the Java. IO. BufferedReader; 
Import the Java. IO. IOException; 
Import the Java. IO. InputStream; 
Import the Java. IO. InputStreamReader; 
Import the Java. IO. OutputStream; 
Import the Java. IO. PrintStream; 
The import java.net.Socket; 
The import java.net.UnknownHostException; 
import java.util.Scanner; 

Public class testClient {

Public static void main (String [] args) throws UnknownHostException, IOException {
//TODO Auto - generated method stub 
The Socket Socket=new Socket (" 192.168.1.119 ", 9999); 

OutputStream out=socket. GetOutputStream (); 
PrintStream ps=new PrintStream (out); 

InputStream is=socket. GetInputStream (); 
InputStreamReader isr=new InputStreamReader (is); 
BufferedReader br=new BufferedReader (isr); 

Scanner sc=new Scanner(System.in); 

While (true) {
System. The out. Println (" please enter the words: "); 
The String word=sc. Next (); 

Ps. Println (word); 

If (" bye ". The equals (word)) {
break; 
} 
The String result=br. ReadLine (); 
System. The out. Println (" the results returned from the server: "+ result); 
} 

Is the close (); 
socket.close(); 
} 

} 

 
The Socket Socket=new Socket (" localhost ", 9999);