diff --git a/.gitignore b/.gitignore index a1373bb33a8bd57a3c2ba1941f43f31c61a6513c..256ac01a797e5a261e446f6bf5a83673646bd4c4 100644 --- a/.gitignore +++ b/.gitignore @@ -49,4 +49,5 @@ /CourseExamples/dist/ /examples/build/ /examples/nbproject/private/ -/assignments/nbproject/private/ \ No newline at end of file +/assignments/nbproject/private/ +/assignments/build/ \ No newline at end of file diff --git a/assignments/ReportingForDuty.md b/assignments/ReportingForDuty.md index 7b431cc9c4243b060dd2a84b541e86f516cfa5ee..b7d4f1006d0293144e6941b16b928535e74e910b 100644 --- a/assignments/ReportingForDuty.md +++ b/assignments/ReportingForDuty.md @@ -2,10 +2,23 @@ Everyone in the course is hereby requested to make a change to this file. Be sure to *git update* before, and be sure to *git commit* and *git push* after! +More information on your use of Git is in the parent directory [README.md](../README.md) + - Don Brutzman -Changed "mile" in the first line to "file." + +Changed by Colton. Changing via website. + +Changed "mile" in the first line to "file." How much wood could a woodchuck chuck if a woodchuck could chuck wood. - Jonathan Boron -Lauren McCann + +Radio check de Yurkovich + +-Thomas Schutt + +- Bert Knobeloch + +Tobias Brennenstuhl \ No newline at end of file diff --git a/assignments/src/MV3500Cohort2019JulySeptember/homework1/YURKOVICH_TcpExample1Telnet.java b/assignments/src/MV3500Cohort2019JulySeptember/homework1/YURKOVICH_TcpExample1Telnet.java new file mode 100644 index 0000000000000000000000000000000000000000..46f084a5d52b3cee0ede3285a33cdb5cc1cb4dea --- /dev/null +++ b/assignments/src/MV3500Cohort2019JulySeptember/homework1/YURKOVICH_TcpExample1Telnet.java @@ -0,0 +1,70 @@ +package MV3500Cohort2019JulySeptember.homework1; + +import java.io.*; +import java.net.*; + +/** + * The simplest possible TCP network program. It listens for + * a connection, from telnet (telnet localhost 2317) or a program + * you write, which we will do later. Right now the TcpExample simply + * writes a string in response to a connection. + * + * Modifying his program is the basis for Assignment 1. + * + * Testing the running server program from telnet looks like this: + * + * it154916:projects mcgredo$ telnet localhost 2317 + * Trying ::1... + * Connected to localhost. + * Escape character is '^]'. + * This was written by the server + * Connection closed by foreign host. + * + * Notice that "This was written by the server" matches + * what is written by the code below, over the output stream. + * + * After this first connection the program below drops out + * the bottom of the program, and does not repeat itself. + * The program exits. + * + * @author mcgredo, brutzman + */ +public class YURKOVICH_TcpExample1Telnet +{ + public static void main(String[] args) + { + try + { + System.out.println("TcpExample1Telnet has started and is waiting for a connection."); + System.out.println(" help: https://savage.nps.edu/Savage/developers.html#telnet"); + System.out.println(" enter (telnet localhost 2317) or (nc localhost 2317)..." ); + + // The ServerSocket waits for a connection from a client. + // It returns a Socket object when the connection occurs. + ServerSocket serverSocket = new ServerSocket(2317); + + // The Socket object represents the connection between + // the server and client, including a full duplex connection + Socket clientConnection = serverSocket.accept(); + + // Use Java io classes to write text (as opposed to + // unknown bytes of some sort) to the client + OutputStream os = clientConnection.getOutputStream(); + PrintStream ps = new PrintStream(os); + + ps.println("This client response was written by server TcpExample1."); // to remote clientnc + System.out.println("This server response was written by server TcpExample1."); // to server console + + // "flush()" in important in that it forces a write + // across what is in fact a slow connection + ps.flush(); + + clientConnection.close(); + System.out.println("TcpExample1 completed successfully."); + } + catch(IOException e) + { + System.out.println("problem with networking: " + e); + } + } +}