java programming in network

Server program..................................



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


public class lab8S
{
public static final void main(String[] args)
{

while(true){
try{
ServerSocket ss=new ServerSocket(2002);
new process1(ss.accept()).start();
try
{
Thread.currentThread().sleep(100);
}catch(InterruptedException ie)
{
}

}
catch(IOException e)
{
}
}
}
}
class KeyboardInThread extends Thread {
      PrintWriter pout = null;
      OutputStream out;
      BufferedReader sIn = new BufferedReader(new InputStreamReader(System.in));
    public KeyboardInThread(OutputStream out) {
            this.out = out;
    }

      public void run() {
while(true) {

                  try {
                        pout = new PrintWriter(out, true);
                        pout.println(sIn.readLine());
                        pout.flush();

                  }catch(IOException ioe) {
                        }
                  }
      }
}
class ScreenOutThread extends Thread {
      InputStream in;
      BufferedReader br=null;
    public ScreenOutThread(InputStream inB) {
            in = inB;
    }
      public void run() {
            while(true) {

               try {
                        br=new BufferedReader(new InputStreamReader(in));
                        System.out.println(br.readLine());
                        }catch(Exception ioe) {}}
      }
}

class process1 extends Thread
{
private Socket s;
public process1(Socket soc)
{
s=soc;
}

public final void run()
{
while(true)
{
try{
new ScreenOutThread(s.getInputStream()).start();
new KeyboardInThread(s.getOutputStream()).start();
try{
Thread.currentThread().sleep(1000);
}catch(InterruptedException e)
{}
}
catch(Exception e)
{
try{
s.close();
}
catch(Exception ex){}
return;
}
}
}
}


Client program

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


public class dlab8c
{
public static final void main(String[] args)
{


try{
Socket eSocket = null;
BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter address of a server");
eSocket = new Socket(InetAddress.getByName(stdIn.readLine()),2002);
new proc(eSocket).start();
try
{
Thread.currentThread().sleep(100);
}catch(InterruptedException ie)
{
}

}
catch(IOException e)
{
}
}
}
class KThread extends Thread {
      PrintWriter pout = null;
      OutputStream out;
      BufferedReader sIn = new BufferedReader(new InputStreamReader(System.in));
    public KThread(OutputStream out) {
            this.out = out;
    }

      public void run() {
while(true) {

                  try {
                        pout = new PrintWriter(out, true);
                        pout.println(sIn.readLine());
                        pout.flush();

                  }catch(IOException ioe) {
                        }
                        }
      }
}
class SThread extends Thread {
      InputStream in;
      BufferedReader br=null;
    public SThread(InputStream inB) {
            in = inB;
    }
      public void run() {
            while(true){
               try {
                        br=new BufferedReader(new InputStreamReader(in));
                        System.out.println(br.readLine());

                        }catch(Exception ioe) {}
                        }
      }
}

class proc extends Thread
{
private Socket s;
public proc(Socket soc)
{
s=soc;
}

public final void run()
{
while(true)
{
try{
new KThread(s.getOutputStream()).start();
new SThread(s.getInputStream()).start();
try{
Thread.currentThread().sleep(100);
}catch(InterruptedException e)
{}
}
catch(Exception e)
{
try{
s.close();
}
catch(Exception ex){}
return;
}
}
}
}

Please help to make the above server and client program to work properly.It just shows communication between server and client.