gistfile1.txt

try {
            int port = 8000;
            InetAddress address = InetAddress.getByName("8.8.8.8");
            DatagramSocket socket = new DatagramSocket();
            socket.setSoTimeout(2000);
            socket.connect(address, port);
            for(int i = 0; i < NUM_TRIALS; i++){
                String str = "PING " + i + " \n";
                byte[] buf = new byte[1024];
                buf = str.getBytes();
                DatagramPacket ping = new DatagramPacket(buf, buf.length, address, port);

                try {
                    long startTime = System.currentTimeMillis();
                    socket.send(ping);
                    DatagramPacket response = new DatagramPacket(new byte[1024], 1024);
                    socket.receive(response);
                    System.out.println("response received");
                    long endTime = System.currentTimeMillis();
                    pingTimes.add(endTime - startTime);

                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (SocketException e) {
            e.printStackTrace();
        }