diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/README.md b/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/README.md
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+# Schnitzler Homework 2
+
+***
+
+## Description
+Modification of TcpExample3 and adding some code to implement a chat room with multiple clients.
+
+The 'SchnitzlerServer' class sets up a server that listens for incoming client connections on port 2317. When a client connects, the server creates a new handler thread for managing communication with that client. Each client's messages are broadcast to all other connected clients.
+
+The 'SchnitzlerClient' class connects to a server running on localhost at port 2317. It sends user input from the console to the server and displays messages received from the server.
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diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/SchnitzlerClient.java b/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/SchnitzlerClient.java
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+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/SchnitzlerClient.java
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+package MV3500Cohort2024JulySeptember.homework2.Schnitzler;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.net.Socket;
+import java.util.Scanner;
+
+/**
+ *
+ * @author simonschnitzler
+ */
+public class SchnitzlerClient {
+ public final static String LOCALHOST = "0:0:0:0:0:0:0:1"; //Local host
+
+ /**
+ * @param args the command line arguments
+ * @throws java.lang.Exception
+ */
+ public static void main(String[] args) throws Exception {
+ Socket socket = new Socket(LOCALHOST, 2317);
+
+ new Thread(new Reader(socket)).start();
+
+ PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
+ Scanner scanner = new Scanner(System.in);
+ while (scanner.hasNextLine()) {
+ out.println(scanner.nextLine());
+ }
+ }
+
+ private static class Reader implements Runnable {
+ private BufferedReader in;
+
+ public Reader(Socket socket) throws IOException {
+ in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+ }
+
+ @Override
+ public void run() {
+ try {
+ String message;
+ while ((message = in.readLine()) != null) {
+ System.out.println(message);
+ }
+ } catch (IOException e) {
+ System.out.println("Error reading from server: " + e);
+ }
+ }
+ }
+
+}
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/SchnitzlerServer.java b/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/SchnitzlerServer.java
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+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/SchnitzlerServer.java
@@ -0,0 +1,99 @@
+package MV3500Cohort2024JulySeptember.homework2.Schnitzler;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.io.PrintWriter;
+import java.net.InetAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ *
+ * @author simonschnitzler
+ */
+public class SchnitzlerServer {
+ // the set clientWriters contains form all sockets the active PrintStream
+ private static Set<PrintWriter> clientWriters = new HashSet<>();
+
+ /**
+ * @param args the command line arguments
+ */
+ public static void main(String[] args) {
+ System.out.println(SchnitzlerServer.class.getName() + " has started..."); // it helps debugging to put this on console first
+ try (ServerSocket listener = new ServerSocket(2317)) {
+ while (true) {
+ Handler handler = new Handler(listener.accept()); // create a new thread writing and reading to and from the new socket
+ OutputStream os = handler.socket.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+
+ InetAddress remoteAddress = handler.socket.getInetAddress();
+ int remotePort = handler.socket.getPort();
+ String message = remoteAddress.getHostName() + "=" + remoteAddress.getHostAddress() + ", " + remotePort + " has connected to the server.";
+ System.out.println(message);
+ ps.println("Welcome " + remoteAddress.getHostName() + "=" + remoteAddress.getHostAddress() + ", " + remotePort + " to the group chat!");
+ for (PrintWriter writer : clientWriters) {
+ writer.println(message);
+ }
+ ps.flush();
+ handler.start();
+ }
+ }catch (IOException e) {
+ System.err.println("Problem with " + SchnitzlerServer.class.getName() + " networking: " + e);
+
+ // Provide more helpful information to user if exception occurs due to running twice at one time
+ if (e instanceof java.net.BindException) {
+ System.err.println("*** Be sure to stop any other running instances of programs using this port!");
+ }
+ }
+
+ }
+
+ private static class Handler extends Thread {
+ public final Socket socket;
+ private PrintWriter out;
+ private BufferedReader in;
+
+ public Handler(Socket socket) {
+ this.socket = socket;
+ }
+
+ @Override
+ public void run() {
+ try {
+ in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+ out = new PrintWriter(socket.getOutputStream(), true);
+
+ synchronized (clientWriters) {
+ clientWriters.add(out);
+ }
+
+ String message;
+ while ((message = in.readLine()) != null) {
+ String outputMessage = socket.getInetAddress().getHostName() + "=" + socket.getInetAddress().getHostAddress() + ", " + socket.getPort()+ ": " + message;
+ System.out.println(outputMessage);
+ for (PrintWriter writer : clientWriters) {
+ writer.println(outputMessage);
+ }
+ }
+ } catch (IOException e) {
+ System.out.println("Error handling client: " + e);
+ } finally {
+ try {
+ socket.close();
+ } catch (IOException e) {
+ System.out.println("Couldn't close a socket, what's going on?");
+ }
+
+ synchronized (clientWriters) {
+ clientWriters.remove(out);
+ }
+ }
+ }
+ }
+
+}
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/package-info.java b/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/package-info.java
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+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework2/Schnitzler/package-info.java
@@ -0,0 +1,10 @@
+/**
+ * TCP Unicast homework assignments supporting the NPS MOVES MV3500 Networked Graphics course.
+ *
+ * @see <a href="https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/tree/master/assignments" target="_blank">networkedGraphicsMV3500 assignments</a>
+ * @see java.lang.Package
+ * @see <a href="https://stackoverflow.com/questions/22095487/why-is-package-info-java-useful" target="_blank">StackOverflow: why-is-package-info-java-useful</a>
+ * @see <a href="https://stackoverflow.com/questions/624422/how-do-i-document-packages-in-java" target="_blank">StackOverflow: how-do-i-document-packages-in-java</a>
+ */
+
+package MV3500Cohort2024JulySeptember.homework2.Schnitzler;