Java program that finds the area of a circle using Client-Server network

import java.net.*;
import java.io.*;
public class  server
{
public static void main(String args[]) throws Exception
{
ServerSocket ss=new ServerSocket(2000);
Socket s=ss.accept();
BufferedReader br=new BufferedReader(newInputStreamReader(s.getInputStream()));
double rad,area;
String result;
rad=Double.parseDouble(br.readLine());
System.out.println("From Client : "+rad);
area=Math.PI*rad*rad;
result="Area is "+area;	
PrintStream ps=new PrintStream(s.getOutputStream());
ps.println(result);
br.close();
ps.close();
s.close();
ss.close();
}
}
public class  client
{
public static void main(String args[]) throws Exception
{
 
Socket s=new Socket("192.168.0.19",2000);
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String rad;
System.out.println("Enter radius of the circle ");
rad=br.readLine();
PrintStream ps=new PrintStream(s.getOutputStream());
ps.println(rad);
BufferedReader fs=newBufferedReader(new InputStreamReader(s.getInputStream()));
String result=fs.readLine();
System.out.println("From Server : "+result);
br.close();
fs.close();	
ps.close();
s.close();
}
}