I am getting NoInitialContextException in my sample program .what steps should i do to avoid this......

Below is the sample code.....



import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.Hashtable;

class Lookup {
public static void main(String[] args) {
// Check that user has supplied name of file to lookup
if (args.length != 1) {
System.err.println("usage: java Lookup ");
System.exit(-1);
}

String name = args[0];

// Identify service provider to use
Hashtable env = new Hashtable(11);
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.fscontext.RefFSContextFactory");

try {
System.out.println("hello");
// Create the initial context
Context ctx = new InitialContext(env);
System.out.println("hello");
// Look up an object
Object obj = ctx.lookup(name);

// Print it out
System.out.println(name + " is bound to: " + obj);

// Close the context when we're done
ctx.close();
} catch (NamingException e) {
System.err.println("Problem looking up " + name + ": " + e);
}
}
}