i use java udp socket write a program today.classes used: DatagramScocket (int port); DatagramPacket (byte [] buf, int length, InetAddress address, int port); // for sendDatagramPacket (byte [] buf, int length); // for receive
implements: first, construct a DatagramSocket object with a specified port.then construct a DatagramPacket with a buffer, length, InetAddress and port to send you message, the message is stroed in the buffer which is a byte array.also you can construct a DatagramPacket with a buffer and length to recieve message from the port blinded with you socket.note: if you send message to a server that not recieve you message, the message is lost this future is differnet to tcp connetion.so to make udp program,. You Must Dear with package lost !!!
