Data Not ready to read from Stream

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

public class ServerSide
{
  	public static void main(String args[])
	{	
	       try
	       {	
        	   ServerSocket ss = new ServerSocket(8888);
		   System.out.println("Waiting...");	
        	   Socket server=ss.accept();
	           PrintStream ps= new PrintStream(server.getOutputStream());
        	   ps.print("Hello...");
	           ps.flush();
		   System.out.println("Data Sent...");
			
	       }
	       catch(Exception e)
	       {
			 System.out.println("Error : " + e.toString());
	       }
	   }
}

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

public class ClientSide 
{
	public static void main(String args[])
	{
		try
	       {
		   String str= new String();
	           Socket client=new Socket(InetAddress.getLocalHost(),8888);
        	   BufferedReader br = new BufferedReader(new InputStreamReader(client.getInputStream()));
                   if(br.ready())
                   {
                        str=br.readLine();
        	        System.out.println(str);
                   }
	           else
                   {
                        System.out.println("Data not ready to read from Stream");
                   }
	       }
	       catch(Exception e)
	       {
			System.out.println("Error : " + e.toString());
	       }
	}
}