quoteclient.java

这是一个英文版的《Java程序设计与问题解决》现在好多大学都当成教材

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

public class QuoteClient {
    public static void main(String[] args) throws IOException {

        if (args.length != 1) {
             System.out.println("Usage: java QuoteClient <hostname>");
             return;
        }

	// get a datagram socket
        DatagramSocket socket = new DatagramSocket();

	// send request
	byte[] buf = new byte[256];
	InetAddress address = InetAddress.getByName(args[0]);
	DatagramPacket packet = new DatagramPacket(buf, buf.length, address, 4445);
	socket.send(packet);

	// get response
	packet = new DatagramPacket(buf, buf.length);
	socket.receive(packet);

	// display response
	String received = new String(packet.getData(), 0);
	System.out.println("Quote of the Moment: " + received);

	socket.close();
    }
}