Beginners programming challenge #28

[r-senior]

Not a beginner submission, but they seem few and far between now so here's a little Java solution. Functions you say? Functions (or methods) aplenty here!

I've left all classes in the default package to make compiling it easier without a Java IDE. I suppose I could have used java.net.InetAddress to format the IP address but I was writing the MAC address formatter anyway. Note the .bin filenames need to be passed on the command line -- it doesn't check and display a usage message.

Here's a compile and test run:

$ ls
ARPPacket.java  Driver.java  EthernetFrame.java  NetDump.java  reply.bin  request.bin
$ javac *.java
$ java Driver request.bin
request.bin

Ethernet Header
---------------
Source MAC Address: ca:01:33:65:00:08
Destination MAC Address: ff:ff:ff:ff:ff:ff
Ethernet Frame Type: 0x0806

ARP Packet
----------
Hardware Type: 0x0001
Protocol Type: 0x0800
Hardware Size: 0x06
Protocol Size: 0x04
Opcode: 0x0001
Sender MAC Address: ca:01:33:65:00:08
Sender IP Address: 192.168.1.1
Target MAC Address: 00:00:00:00:00:00
Target IP Address: 192.168.1.2

[Bodsda]

Morning all, it's great to see people stepping in to keep these challenges going. Now, we haven't had a reply to this thread for quite a while, and I've been unable to get in touch with Bachstelze. We also only had 1 beginner entry, which kind of makes judging relatively easy
Despite this, the entry in question displayed good use of functions, readable code and although the comments were a bit thin they were used correctly; by that I mean they were used to tell the reader why something was being done, not how something was being done.

The winner is.
.
.
.
***CoyleTrydan***

Congratultations, I look froward to seeing the next challenge.

Good work from everyone,
Happy coding!
Bodsda,
Ubuntu Beginners Team

[Bachstelze]

and I've been unable to get in touch with Bachstelze.

Oh, sorry about that, I'm not visiting the forum much these days, and I don't get email notifications when I have a PM...

[CoyleTrydan]

Cool! Thanks Bachstelze for putting this challenge together. Though I struggled at times to figure some parts out, it really taught me some useful stuff, and I enjoyed it a great deal. Thank you Bodsda for your kind words about my entry.

I'm not sure I'm really qualified to put together the next challenge, but I'll give it a bit of thought and talk with Bodsda some privately.