diff --git a/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpReceiver.java b/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpReceiver.java
new file mode 100644
index 0000000000000000000000000000000000000000..3038d6c38f4dd72197269901ef2ba8e65fef339f
--- /dev/null
+++ b/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpReceiver.java
@@ -0,0 +1,92 @@
+package MV3500Cohort2020JulySeptember.homework3.White;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * An example of receiving UDP packets. Since very often both the
+ * sender and receiver are on the same host we use different ports
+ * for each. This prevents collision complaints from the localhost.
+ *
+ * Start this before launching UdpSender.
+ *
+ * @see https://docs.oracle.com/javase/tutorial/essential/io/datastreams.html
+ * @see https://en.wikipedia.org/wiki/User_Datagram_Protocol
+ * @author mcgredo
+ * @author brutzman
+ */
+public class UdpReceiver
+{
+// public static final int SENDING_PORT = 1414; // port used by UdpSender, unneeded here
+ public static final int RECEIVING_PORT = 1415;
+ public static final String DESINATION_HOST = "localhost";
+
+ /**
+ * @param args the command line arguments
+ * @throws java.io.IOException
+ */
+ public static void main(String[] args) throws IOException
+ {
+ DatagramSocket udpSocket = null;
+
+ try
+ {
+ System.out.println(UdpReceiver.class.getName() + " started...");
+
+ // Create a UDP socket
+ udpSocket = new DatagramSocket(RECEIVING_PORT);
+ udpSocket.setReceiveBufferSize(1500); // how many bytes are in buffer? MTU=1500 is good
+ udpSocket.setBroadcast(false); // we're just receiving here
+
+ byte[] byteArray = new byte[1500];
+ DatagramPacket receivePacket = new DatagramPacket(byteArray, byteArray.length);
+
+ ByteArrayInputStream bais = new ByteArrayInputStream(byteArray);
+ DataInputStream dis = new DataInputStream(bais);
+
+ boolean isEvenParity;
+ int packetCount = 0;
+ int firstInt;
+ float secondFloat;
+ String thirdString;
+ String padding;
+
+ // You need a new receiving packet to read from every packet received
+ while (true)
+ {
+ packetCount++; // good practice to increment counter at start of loop, when possible
+ udpSocket.receive(receivePacket); // blocks until packet is received
+
+ // values of interest follow. order and types of what was sent must match what you are reading!
+ firstInt = dis.readInt(); // packetID
+ secondFloat = dis.readFloat();
+ thirdString = dis.readUTF(); // string value with guaranteed encoding, matches UTF-8 is 8 bit
+ isEvenParity = dis.readBoolean(); // ok, we've gotten everything we're looking for.
+
+ dis.reset(); // now clear the input stream after reading, in preparation for next loop
+
+ if (isEvenParity)
+ padding = " ";
+ else padding = "";
+
+ System.out.println("[" + UdpReceiver.class.getName() + "]" +
+ " packetID=" + firstInt + // have output message use same name as sender
+ ", second float value=" + secondFloat +
+ ", third String value=\"" + thirdString + "\"" + // note that /" is literal quote character
+ " isPacketIdEvenParity=" + isEvenParity + "," + padding +
+ " packet counter=" + packetCount);
+ }
+ }
+ catch(IOException e)
+ {
+ System.err.println("Problem with UdpReceiver, see exception trace:");
+ System.err.println(e);
+ }
+ finally // clean up prior to exit, don't want to leave behind zombie socket
+ {
+ if (udpSocket != null)
+ udpSocket.close();
+ System.out.println(UdpReceiver.class.getName() + " complete."); // all done
+ }
+ }
+}
diff --git a/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpRecieverLog.md b/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpRecieverLog.md
new file mode 100644
index 0000000000000000000000000000000000000000..e7ebae81c9dc96f47e8fd850af64785deb81303b
--- /dev/null
+++ b/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpRecieverLog.md
@@ -0,0 +1,88 @@
+ant -f C:\\Users\\ctsfi\\Documents\\NetBeansProjects\\MV3500\\NetworkedGraphicsMV3500\\assignments -Dnb.internal.action.name=run.single -Djavac.includes=MV3500Cohort2020JulySeptember/homework3/White/UdpReceiver.java -Drun.class=MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver run-single
+init:
+Deleting: C:\Users\ctsfi\Documents\NetBeansProjects\MV3500\NetworkedGraphicsMV3500\assignments\build\built-jar.properties
+deps-jar:
+Updating property file: C:\Users\ctsfi\Documents\NetBeansProjects\MV3500\NetworkedGraphicsMV3500\assignments\build\built-jar.properties
+Compiling 1 source file to C:\Users\ctsfi\Documents\NetBeansProjects\MV3500\NetworkedGraphicsMV3500\assignments\build\classes
+warning: [options] bootstrap class path not set in conjunction with -source 8
+1 warning
+compile-single:
+run-single:
+MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver started...
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=1, second float value=9999.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=1
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=2, second float value=9998.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=2
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=3, second float value=9997.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=3
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=4, second float value=9996.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=4
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=5, second float value=9995.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=5
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=6, second float value=9994.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=6
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=7, second float value=9993.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=7
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=8, second float value=9992.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=8
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=9, second float value=9991.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=9
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=10, second float value=9990.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=10
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=11, second float value=9989.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=11
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=12, second float value=9988.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=12
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=13, second float value=9987.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=13
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=14, second float value=9986.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=14
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=15, second float value=9985.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=15
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=16, second float value=9984.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=16
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=1, second float value=99.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=17
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=17, second float value=9983.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=18
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=2, second float value=98.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=19
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=18, second float value=9982.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=20
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=3, second float value=97.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=21
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=19, second float value=9981.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=22
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=4, second float value=96.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=23
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=20, second float value=9980.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=24
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=5, second float value=95.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=25
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=21, second float value=9979.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=26
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=6, second float value=94.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=27
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=22, second float value=9978.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=28
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=7, second float value=93.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=29
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=23, second float value=9977.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=30
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=8, second float value=92.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=31
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=24, second float value=9976.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=32
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=9, second float value=91.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=33
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=25, second float value=9975.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=34
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=10, second float value=90.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=35
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=26, second float value=9974.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=36
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=11, second float value=89.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=37
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=27, second float value=9973.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=38
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=12, second float value=88.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=39
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=28, second float value=9972.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=40
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=13, second float value=87.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=41
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=29, second float value=9971.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=42
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=14, second float value=86.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=43
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=30, second float value=9970.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=44
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=15, second float value=85.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=45
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=31, second float value=9969.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=46
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=16, second float value=84.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=47
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=32, second float value=9968.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=48
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=17, second float value=83.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=49
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=33, second float value=9967.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=50
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=18, second float value=82.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=51
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=34, second float value=9966.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=52
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=19, second float value=81.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=53
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=35, second float value=9965.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=54
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=20, second float value=80.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=55
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=36, second float value=9964.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=56
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=21, second float value=79.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=57
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=1, second float value=99.0, third String value="We got London on da Track" isPacketIdEvenParity=false, packet counter=58
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=37, second float value=9963.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=59
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=22, second float value=78.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=60
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=2, second float value=98.0, third String value="We got London on da Track" isPacketIdEvenParity=true, packet counter=61
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=38, second float value=9962.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=62
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=23, second float value=77.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=63
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=3, second float value=97.0, third String value="We got London on da Track" isPacketIdEvenParity=false, packet counter=64
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=39, second float value=9961.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=65
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=24, second float value=76.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=66
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=4, second float value=96.0, third String value="We got London on da Track" isPacketIdEvenParity=true, packet counter=67
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=40, second float value=9960.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=68
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=25, second float value=75.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=69
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=5, second float value=95.0, third String value="We got London on da Track" isPacketIdEvenParity=false, packet counter=70
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=41, second float value=9959.0, third String value="42 is the answer" isPacketIdEvenParity=false, packet counter=71
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=26, second float value=74.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=true, packet counter=72
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=6, second float value=94.0, third String value="We got London on da Track" isPacketIdEvenParity=true, packet counter=73
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=42, second float value=9958.0, third String value="42 is the answer" isPacketIdEvenParity=true, packet counter=74
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=27, second float value=73.0, third String value="chris says we need to understand llamas in order to code" isPacketIdEvenParity=false, packet counter=75
+[MV3500Cohort2020JulySeptember.homework3.White.UdpReceiver] packetID=7, second float value=93.0, third String value="We got London on da Track" isPacketIdEvenParity=false, packet counter=76
+BUILD STOPPED (total time: 59 seconds)
diff --git a/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpSender.java b/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpSender.java
new file mode 100644
index 0000000000000000000000000000000000000000..d22d843330bf01b15fe4fd6edacbfea592ececc6
--- /dev/null
+++ b/assignments/src/MV3500Cohort2020JulySeptember/homework3/White/UdpSender.java
@@ -0,0 +1,115 @@
+package MV3500Cohort2020JulySeptember.homework3.White;
+
+import java.io.*;
+import java.net.*;
+
+/**
+ * An example of sending UDP packets. The sending and receiving programs
+ * use different UDP ports; there can be problems getting this to work
+ * if both the sending and receiving sockets try to use the same port
+ * on the same host.
+ *
+ * Start this before launching UdpReceiver.
+ *
+ * @see https://docs.oracle.com/javase/tutorial/essential/io/datastreams.html
+ * @see https://en.wikipedia.org/wiki/User_Datagram_Protocol
+ * @author mcgredo
+ * @author brutzman
+ */
+public class UdpSender
+{
+ // System properties: https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html
+ public static final String MY_NAME = "Alex"; // guru incantation 8)
+// public static final int SENDING_PORT = 1414; // not needed, can let system choose an open local port
+ public static final int RECEIVING_PORT = 1415;
+ public static final int TOTAL_PACKETS_TO_SEND = 100;
+
+ // here is what we need for lab comms
+ public static final String DESTINATION_HOST = "10.1.105.8"; // localhost 127.0.0.1 or argon 10.1.105.1 or 10.1.105.1 or whatever
+
+ @SuppressWarnings("SleepWhileInLoop")
+ public static void main(String[] args) throws IOException
+ {
+ DatagramSocket udpSocket = null;
+ DataOutputStream dos = null;
+ int packetID = 0; // counter variable to send in packet
+ float value = -1.0f; // unreachable value is good sentinel to ensure expected changes occur
+ String message = MY_NAME + " says Fuck You, Pay Me"; // no really
+ String padding = new String();
+
+ try
+ {
+ System.out.println(UdpSender.class.getName() + " shows how to send simple-type values via DataOutputStream");
+ System.out.println(UdpSender.class.getName() + " started...");
+
+ // Create a UDP socket
+ udpSocket = new DatagramSocket(); // let system assign output port, then SENDING_PORT not needed
+
+ // Put together a message with binary content. "ByteArrayOutputStream"
+ // is a java.io utility that lets us put together an array of binary
+ // data, which we put into the UDP packet.
+
+ ByteArrayOutputStream baos = new ByteArrayOutputStream(1500); // how many bytes are in buffer? MTU=1500 is good
+ dos = new DataOutputStream(baos); // wrapper for writing values, connects both streams
+
+ // Put together a packet to send
+ // these types and order of variables must match on sender and receiver
+ byte[] byteArray = baos.toByteArray();
+
+ // ID of the host we are sending to
+ InetAddress destinationAddress = InetAddress.getByName(DESTINATION_HOST);
+ // ID of the host we are sending from
+ InetAddress sourceAddress = InetAddress.getByName("localhost"); // possibly identical if source not modified
+
+ DatagramPacket datagramPacket = new DatagramPacket(byteArray, byteArray.length, destinationAddress, RECEIVING_PORT);
+
+ // Hmmm, how fast does UDP stream go? Does UDP effectively slow packets down, or does
+ // this cause network problems? (hint: yes for an unlimited send rate, unlike TCP).
+ // How do you know on the receiving side that you haven't received a
+ // duplicate UDP packet, out-of-order packet, or dropped packet? your responsibility.
+
+ for (int index = 1; index <= TOTAL_PACKETS_TO_SEND; index++) // avoid infinite send loops in code, they can be hard to kill!
+ {
+ packetID++; // increment counter, prefer using explicit value to index
+ value = TOTAL_PACKETS_TO_SEND - packetID; // countdown
+ boolean isPacketIdEvenParity = ((packetID % 2) == 0); // % is modulo operator; result 0 is even parity, 1 is odd parity
+
+ // values of interest follow. order and types of what was sent must match what you are reading!
+ dos.writeInt (packetID);
+ dos.writeFloat (value);
+ dos.writeUTF (message); // string value with guaranteed encoding, matches UTF-8 is 8 bit
+ dos.writeBoolean(isPacketIdEvenParity);
+
+ dos.flush(); // sends DataOutputStream to ByteArrayOutputStream
+ byteArray = baos.toByteArray(); // OK so go get the flushed result...
+ datagramPacket.setData(byteArray); // and put it in the packet...
+ udpSocket.send(datagramPacket); // and send it away. boom gone, nonblocking.
+// System.out.println("udpSocket output port=" + udpSocket.getLocalPort()); // diagnostic tells what port was chosen by system
+
+ if (isPacketIdEvenParity)
+ padding = " ";
+ else padding = "";
+
+ Thread.sleep(1000); // Send packets at rate of one per second
+ System.out.println("[" + UdpSender.class.getName() + "] " + MY_NAME + " " + sourceAddress +
+ " sent values(" + packetID + "," + value + ",\"" + message + "\"," + isPacketIdEvenParity +
+ ")" + padding + " as packet #" + index + " of " + TOTAL_PACKETS_TO_SEND);
+ baos.reset(); // clear the output stream after sending
+ }
+ }
+ catch (IOException | InterruptedException e)
+ {
+ System.err.println("Problem with UdpSender, see exception trace:");
+ System.err.println(e);
+ }
+ finally // clean up prior to exit, don't want to leave behind zombies
+ {
+ if (udpSocket != null)
+ udpSocket.close();
+
+ if (dos != null)
+ dos.close();
+ System.out.println(UdpSender.class.getName() + " complete."); // all done
+ }
+ }
+}