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while(inFromFile.read(sendb) != -1){
DatagramPacket sendPacket = new DatagramPacket(sendb, sendb.length, ipAddr, port);
serverSocket.send(sendPacket);
}
byte[] b = new byte[1024];
DatagramPacket recvPacket = new DatagramPacket(b, b.length);
while(true){
clientSocket.receive(recvPacket);
}