Frank Assignment 2

assignments/src/MV3500Cohort2021JulySeptember/homework2/Frank/FrankClient.java

+package MV3500Cohort2021JulySeptember.homework2.Frank;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.net.Socket;
+
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+/**
+ *
+ * @author justi
+ */
+public class FrankClient {
+
+    /**
+     */
+    public final static String LOCALHOST = "0:0:0:0:0:0:0:1";
+
+    /**
+     * Program invocation, execution starts here
+     *
+     * @param args command-line arguments
+     * @throws java.lang.InterruptedException
+     */
+    public static void main(String[] args) throws InterruptedException {
+
+        // Local variables/fields
+        Socket socket = null;
+        InputStream is;
+        Reader isr;
+        BufferedReader br;
+        String serverMessage;
+        int clientLoopCount = 0;
+
+        try {
+            while (true) {
+                clientLoopCount++; // increment at beginning of loop for reliability
+                System.out.println( "creating socket...");
+
+                // We request an IP to connect to ("localhost") and
+                // port number at that IP (2317). This establishes
+                // a connection to that IP in the form of a Socket
+                // object; the server uses a ServerSocket to wait for
+                // connections.
+                socket = new Socket(LOCALHOST, 2318); // locohost?
+
+                // Now hook everything up (i.e. set up the streams), Java style:
+                is = socket.getInputStream();
+                isr = new InputStreamReader(is);
+                br = new BufferedReader(isr);
+
+                // Read a single line written by the server. We'd
+                // do things a bit differently if there were many lines to be read
+                // from the server instead of one only.
+                serverMessage = br.readLine();
+                System.out.println("*********************************");
+
+                System.out.print( clientLoopCount + ": ");
+                System.out.println("Hola!");
+                System.out.println("The message the server sent was: '" + serverMessage + "'");
+                int count = 0;
+                System.out.println("test");
+                count++;
+// socket gets closed, either automatically/silently by this code (or possibly by the server)
+                if (serverMessage.equals("this is good bye message from Franks server")) { //if client recieved termanation message stop client
+                    break;
+                }
+                Thread.sleep(1000); // turned it down to 1 second
+
+            } // end while(true) // infinite loops are dangerous, be sure to kill this process!
+        } catch (IOException e) {
+            System.err.println("Problem with " + FrankClient.class.getName() + " networking:"); // describe what is happening
+            System.err.println("Error: " + 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!");
+            }
+        } finally // occurs after any other activity when shutting down
+        {
+            try {
+                if (socket != null) {
+                    socket.close();
+                }
+            } catch (IOException e) {
+            }
+
+            // program exit: tell somebody about that happening.  Likely cause: server drops connection.
+            System.out.println();
+            System.out.println("Good Bye!!!");
+        }
+    }
+}