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Monday, October 10, 2011

The server receives the data, uses it to produce a result, and then sends the result back to the client. The client displays the result on the console. For ex: The data sent from the client is the radius of a circle, and the result produced by the server is the area of the circle.


The server receives the data, uses it to produce a result, and then sends the result back to the client. The client displays the result on the console. For ex: The data sent from the client is the radius of a circle, and the result produced by the server is the area of the circle. 


server.java
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
(new InputStreamReader(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();
}
}






Client.java
import java.net.*;
import java.io.*;
public class client
{
public static void main(String args[]) throws Exception
{
Socket s=new Socket("localhost",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=new
BufferedReader(new InputStreamReader
(s.getInputStream()));
String result=fs.readLine();
System.out.println("From Server : "+result);
br.close();
fs.close();
ps.close();
s.close();
}
}

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