import java.net.*;

public class UDPClient extends Object
{   public static void main(String args[ ])
    {   try
        {   DatagramSocket dgs=new DatagramSocket( );
            byte[ ] buf=new byte[1024];
            DatagramPacket p=new DatagramPacket(buf,buf.length,InetAddress.getLocalHost( ),8765);

            for(int i=0;i<3;i++)
            {   dgs.send(p);
                System.out.println("客戶機(jī)發(fā)送完畢數(shù)據(jù)報(bào)！");
                dgs.receive(p);
                System.out.println("客戶機(jī)接收到返回的數(shù)據(jù)報(bào)！");
                Thread.sleep(2000);
            }
        }
        catch(Exception e)
        {   e.printStackTrace( );
        }
    }
}