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Client.java

+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.net.Socket;
+
+/**
+ * @author Ragulan Ramkumar (rr00663)
+ */
+public class Client {
+  private static final String SERVER_IP = "127.0.0.1";
+  private static final int SERVER_PORT = 60000;
+
+  public static void main(String[] args) throws IOException, InterruptedException {
+    String UUID;
+    Socket socket = new Socket(SERVER_IP, SERVER_PORT);
+    BufferedReader input = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+    BufferedReader userKeyboardInput = new BufferedReader(new InputStreamReader(System.in));
+    PrintWriter output = new PrintWriter(socket.getOutputStream(), true);
+
+    System.out.println("Connected to the server.\nSend HELLO to get a place in the queue.");
+    while (true) {
+      System.out.print("--> ");
+      String userInput = userKeyboardInput.readLine();
+      // Fix entering empty line crashing
+      if (userInput.equals("")) {
+        continue;
+      }
+      output.println(userInput);
+      while (true) {
+        // Interpret the messages here
+        String response = input.readLine();
+        if (response.equals("")) {
+          break;
+        }
+        System.out.println("<-- From server: " + response);
+        if (response.equals("UNKNOWN_COMMAND")) {
+        }
+        if (response.startsWith("UUID")) {
+          UUID = response.substring(5, response.length());
+          System.out.println("Your UUID is " + UUID + "\nYou'll need this to renter the queue later.");
+        }
+        if (response.equals("NEXT")) {
+          System.out.println("It's your turn. Send DONE when complete.");
+        }
+        if (response.equals("GOODBYE")) {
+          System.out.println("Closing connection");
+          output.close();
+          input.close();
+        }
+      }
+    }
+  }
+}