TCP Server-Client Application

Server Application

import java.io.*;

import java.net.*;

public class TCPServer{

public static void main(String args[]){

int port=8088;

ServerSocket ser1=null;

PrintWriter pr=null;

BufferedReader br=null;

String str;

Socket soc1=null;

try{

ser1=new ServerSocket(port);

}catch(IOException e){

System.exit(0);

}

while(true){

try{

soc1=ser1.accept();     

        pr=new PrintWriter(new OutputStreamWriter(soc1.getOutputStream()));

pr.println("Client is connected");

        br=new BufferedReader(new InputStreamReader(soc1.getInputStream()));

while((str=br.readLine()) != null)

   System.out.println(str);

if(soc1!=null){

pr.close();

soc1.close();                

}

}catch(IOException e) {

System.out.println(e);

}

}

}

}

Client Application

import java.io.*;
import java.net.*;

public class TCPClient{
public static void main(String args[]){

Socket soc1;
BufferedReader br;
String str;
PrintWriter pr=null;
try{
soc1=new Socket("127.0.0.1",8088);        
        br=new BufferedReader(new InputStreamReader(soc1.getInputStream()));

while((str=br.readLine()) != null)
   System.out.println(str);
        
        pr=new PrintWriter(new OutputStreamWriter(soc1.getOutputStream()));
pr.println("Server is connected");

br.close();
soc1.close();
pr.close();
}catch(ConnectException e){
 System.out.println(e);
}catch(IOException e){
System.out.println(e);
}       
}
}