Hello World server in Java

package guide;

//
// Hello World server in Java
// Binds REP socket to tcp://*:5555
// Expects "Hello" from client, replies with "World"
//

import org.zeromq.SocketType;
import org.zeromq.ZMQ;
import org.zeromq.ZContext;

public class hwserver
{
public static void main(String[] args) throws Exception
{
try (ZContext context = new ZContext()) {
// Socket to talk to clients
ZMQ.Socket socket = context.createSocket(SocketType.REP);
socket.bind("tcp://*:5555");

while (!Thread.currentThread().isInterrupted()) {
byte[] reply = socket.recv(0);
System.out.println(
"Received " + ": [" + new String(reply, ZMQ.CHARSET) + "]"
);

String response = "world";
socket.send(response.getBytes(ZMQ.CHARSET), 0);

Thread.sleep(1000); // Do some 'work'
}
}
}
}