When we start the Chat Client program, we have to enter a User Name for identifying the client in Server side. Every modern operating system has the support for multi-threadingso does the application built to run on that operating system. Java Multithreading is mostly used in games, animation, etc. Multiprocessing and multithreading, both are used to achieve multitasking. Here we give ' 127.0.0.1 ', because Chat Server and Chat Client are running on the same machine. A thread is a lightweight sub-process, the smallest unit of processing. get the port number which the recieved connection came from (i.e. The Chat Client here is to connect the PORT 8888 of the C Chat Server in '127.0.0.1'. InetAddress clientaddress=receivePacket.getAddress() get the IP address of the recieved packet String clientMessage = (new String(receivePacket.getData())).trim() extract the message from the packet and make it into a string, then trim off any end characters block until there is a packet to recieve, then recieve it (into our empty packet) 1024 bytes is pretty long, we could count the bytes in the message first, then create this buffer, but we'll keep it like this for the time beingĭatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length)
create byte buffers to hold the messages to send and recieve, which are at least as long as the number of bytes in the message Open a new datagram socket on the specified portĭatagramSocket udpServerSocket = new DatagramSocket(serverport) Public static void main(String args) throws Exception Not really getting anywhere with this, i'll post ode for both client and server below any help would be great! Thank you Server needs to send message from a client to all the other clients.īut need to save the client ports that are connected to the server in order to do this. Hi, trying to make a chat system with multiple servers.
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