help about java code regarding udp, JAVA Programming

help about java code regarding udp, JAVA Programming

Assignment Help:

I need to know waht exactly is happining in the following code
class Worker implements Runnable {

DatagramSocket socket = null;
DatagramPacket packet = null;

public Worker (DatagramSocket socket, DatagramPacket packet) {
this.socket = socket;
this.packet = packet;
}
public void run() {

try {
BufferedReader fileCopyBuffer = new BufferedReader(new InputStreamReader(new FileInputStream ("NormanConquest.txt")));
String line;
while ((line = fileCopyBuffer.readLine()) != null) {
DatagramPacket response = new DatagramPacket(line.getBytes(), line.length(),packet.getAddress() , packet.getPort());
System.out.print(".");
socket.send(response); } } catch (Exception e){;};
}

}

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