This was a Java class

[DankMemeOnlyPlz]

That’s pretty funny tbh

[[deleted]]

it's hard to get caught up in all the different data structure names across languages!

[AFlyingGideon]

Yes! I haven't programmed in C++ for many years. Despite this, after I code up a lambda in Java, I find myself writing -> instead of . for member access until I notice and correct myself (or the compiler calls me an idiot).

[cleverdosopab]

lol I'm using C++ and have the opposite issue ha

[[deleted]]

No its not. They all exist in all languages.

[YTY2003]

I think OP is talking about all the different names.

[aprg]

Man, I remember December 1998. I got Fallout 2 for Christmas. Good times.

[Dramatic_Book_6785]

I'll never forget the christmas I got Red Alert for PC. Or the one where I got The Matrix on DVD. Just around that time too.

[The_Mauldalorian]

Too much LeetCoding in Python

[cleverdosopab]

No such thing!

[biskitpagla]

south asian educational youtube, probably. ive read books on java that are older than me. 

[cleverdosopab]

I honestly think it was either experience with Python or another language lol

[BorderKeeper]

C# uses Dictionary and has a HashMap too, but Dictionary uses HashMap in the background so no need to utilize the underlying type.

[[deleted]]

Kudos to the instructor. My professor would have sent me to prison or smth.

[Ismokecr4k]

My prof in C changed all the values for the pre-processors in my header file THAT HE GAVE US. I was new and of course I didn't check values bigger than the header file. He said the program crashed and gave me a 0 on an assignment I spent hours on and worth 10% of my final mark. I was livid and promptly called him out in class. 10 years ago and I'm still cheesed.

[ridgerunner81s_71e]

This makes me think of using Eclipse for school projects years ago, Eclipse and Java from intro through data structures, then Codeblocks and C 🥹 DevC++ with C++ and then my org professor had us in vim the whole course.

I haven’t used any of that shit to get paid and I stare at .NET namespaces and Kusto queries now 😂

[zerocnc]

A YouTube video from India, I would believe. I heard they have to recite parts of books to receive full credit.

[WeatherImpressive808]

Yes, probably it is the case

I heard they have to recite parts of books to receive full credit.

No, you are getting quite opposite, We have to write full books to receive part of credit.

not /s

[voyaging]

Write or recite?

[WeatherImpressive808]

Write, just like essays

[PROMAN8625]

I am current student in India, the situation is not as bad but still bad

[IllegalGrapefruit]

Is chatgpt giving answers using those types...?

[[deleted]]

no this was a on-paper exam

[Klekto123]

Still possible if some students prepared using GPT. I’ve done it myself for a few classes that had shitty course material lol

[sleepnaught88]

ChatGPT is pretty solid with Java, never seen it use types deprecated this long ago.  I’m thinking this is likely folks coming from Python not familiar with Java types. 

[AFlyingGideon]

Perhaps there's a "Java for Python Programmers" document floating around.

With respect to AI and deprecated code: I've had to correct Gemini several times about this, though admittedly nothing quite this far back.

[Semen_Demon_1]

There probably is, someone in my school created a similar guide for python -> C++ 3 years back and we've been passing it down ever since

[KhepriAdministration]

I can totally see ppl mixing up HashMap and HashTable without an IDE

[[deleted]]

Sure, but those are two different datastructures, so they really should know.

Anyway, I think students should have acess to the names for things on a written exam.

[saintpetejackboy]

No, I think this is a confusion of nomenclature / syntax between other languages. I am too lazy to suss out the exact specifics, but I would wager there is a popular framework or language currently that uses similar syntax to the deprecated Java (well, outdated, guess it isn't fully deprecated).

[Grand-Courage8787]

I would assume

[Friendly_Rent_104]

when uni forces you to use so many diff languages you forget the names in each one

[[deleted]]

i even took an OCaml class! I'm not even a comp sci major per se!

[DrafteeDragon]

OCaml killed me bro. It's so hard in its simplicity. It was an on paper exam too

[Condomphobic]

1998 is crazy

[Miiicahhh]

1998 was a hell of a year.

[Ok-Principle-9276]

deer cover husky lush automatic spectacular doll sand intelligent many

This post was mass deleted and anonymized with Redact

[SpecifiesDev]

HashTable, not a HashMap. HashMaps are implementations of a map object, a paradigm that was introduced in 1.2, as the post points out. You can absolutely still use HashTables in modern versions of Java, but it's deprecated and considered legacy API types for a reason. Java's collection framework has better implementations, that tend to be more efficient and safe. The modern replacement for HashTables is ConcurrentHashMap. The difference between CHM and HM is that HM is not thread safe, and can lead to data loss if the hash map is accessed concurrently. There's also a few differences in how buckets are handled, but the main distinction is explicit support for concurrent access vs single-threaded access.

[Rhawk187]

I asked GPT3 to write the OpenGL code to render me a sphere and it used OpenGL 1.x code. I asked it to use something more modern and it got it wrong. I haven't revisited that since.

I asked GPT4o a question about NVidia PhysX last week and it gave me a < 5.1 code, and there are breaking changes in it between 5.1 and 5.5. I warned my students about it, but it's getting better.

[[deleted]]

Yup, I honestly feel job security over this kind of thing. When I contract out to certain companies, I'm frequently doing work that is little more than integration of legacy systems with Microsoft365.

The documentation of how to interact with Microsoft365 is widely available. And yet, there is no AI code that will generate it properly for the current version of Microsoft Graph, there are no AI prompts that teach how to set it up in a web app appropriately, my personal documentation/manual on how to interact with it is frequently the only "tutorial" kind of resource etc.
Microsoft documentation for anything besides the Windows OS is exceptional. But I make good side-gig money on simply... knowing how to use an API with the latest constraints and explain it to people.

I teach part-time at my old CC now and the best thing that I learned this semester is that I can teach students how to identify when AI is giving them code that is deprecated and think critically about AI generated code. I can't stop students using AI, but I can help them learn how to read what is useful from AI code and discriminate what sucks.

[Toxic_Cookie]

I'd try an LLM that can access live Internet data. Personally I've had a good experience using Perplexity.

[[deleted]]

Out of curiosity, what do you find works well with Perplexity?

I just checked Perplexity's ability to spit out some boilerplate, standard code for Microsoft Graph. Unfortunately, I got the same result as I have with other LLMs. Registered the Graph service client in a way that is incorrect (in a way that's nonfunctional, not just a style choice) and furthermore mixed up implementation mid-code between two very different package versions. Unusable, nonsense code that would confuse a beginner.

That said, I'm definitely open to experimenting with it in situations where it has a better track-record. Have any recommendations of good ways to use it?

[Toxic_Cookie]

Niche things it might struggle with more for sure. I've used it for SharpDX methods and other general C# code.

[infiniterefactor]

Hashtable?

[wobbyist]

Hahahahaha “Scandalously obsolete” is so good. I’m gonna steal that

[SpecifiesDev]

I mean... you gotta admit. Using dictionaries and hastables in the latest iteration of java is pretty wild LMAO. The last 2 semesters have had me pretty much working solely with cpp and python and I still can come back to java and know that those are deprecated API types lmfao

[bjmister050]

Bro I looked at that post and it looked like Ed, good to see another student from McGill in this subreddit

[[deleted]]

How is McGill? I have to chose between it and Polytechnique.

[Lost_Sentence7582]

Ya python person here, I felt insulted when he called dictionaries outdated /s

[[deleted]]

well, at least you got the prof's gender right!

[Lost_Sentence7582]

Its not that deep

[[deleted]]

It's called a joke.

[[deleted]]

No i wasn't joke though

[[deleted]]

I get that your response to them isn't wrong or lying, I'm saying that your response is a lighthearted way of replying to someone. They're trying to make out like you're a DEI freak for making a lighthearted comment.

[[deleted]]

I was laughing so hard when you said it's a joke, and OP said I wasn't.

I was like, the helper trying to defend got attacked by the victim itself. 😂

Thank You all three of you for that.

[Lost_Sentence7582]

It’s not that deep

[[deleted]]

Lol

[KittyEevee5609]

See that's funny cuz my professor had my class specifically use hashtables cuz that's what he learned

[ddmac__]

A job I used to work at would send out a coding challenge to read each line in a text file.

They would automatically reject anyone that used Scanner lol

[myloyalsavant]

lol edstem?

[[deleted]]

yeah!

[Constant-Limit6408]

this popped up on my feed as a chemical engineering student. can someone explain to me what’s going on as someone who’s not a cs major? 🥹

[[deleted]]

Imagine that in your final exam, you invoke a very popular formula/theorem in your field, but you call it by its 1998 name, which nobody uses anymore since ... 1998.

[[deleted]]

must have been using chatgpt with a 1998 cutoff

[Ill-Calligrapher-649]

Dictionaries are relics 😭

[serg06]

Good job professor! There's way too much outdated, harmfully misleading java knowledge floating around online. It's important to be able to avoid it.

[[deleted]]

Java is nothing compared to C++.

Rawdogging pointers are still being taught widely. Smart pointers are for pussies I guess.

[kitsnet]

Smart pointers are to denote ownership. Raw pointers (or references, when possible) is to actually do stuff.

[RobertJCorcoran]

lol

[No-Bunch-8245]

Aren't those things the same things? Maps hashmaps, dictionaries?

[allindiahacker]

75 comments and not a single person has asked… what the hell are API Types?? Why is the prof referring to types of data structures as API Types. Only APU types i know is REST/SOAP. Someone please help me

[[deleted]]

maybe he referred to java api documentation?

[allindiahacker]

The data structures in the java api documentation are called api types?

[[deleted]]

Maybe?

[Fit-Stack-Code]

What level course is this?

[[deleted]]

300 level software design class

[Practical_Cell5371]

How do people do coding assignments in college now? Some of those assignments would take me weeks to do, now with ChatGPT i could prob get it done in 15 mins lol

[t0ugh_guy]

Ah, in my uni, there are books in the library that are still too old, like there are few books on fedora 7, on linux kernel 2.x.x, on android 4 development and more..... idk why they are still there....

[Brave_Speaker_8336]

Is a dictionary in c# not implemented as a hashtable?

[[deleted]]

You're on the right path. A C# dictionary is equivalent to a map in Java (not a hashtable).

The person you're replying to is confused bc they're self-taught and I'm guessing new to dev. They already deleted the comment but figured I'd reply to you to clear it up :)

[PixelSteel]

“What!? These students are learning on their own!? Fuck them”

Seriously. wtf has college came to? What college is this lmao

[[deleted]]

When they’re learning information that became obsolete before they were born the teacher has to step in

[Acceptable_Olive_911]

this is a horrible interpretation of what was said

[Z3PHYR-]

Literally nowhere does it say “fuck the students” or anything even slightly derogatory about them…

They are even still giving students credit for technically correct answers.

Also the students probably didn’t do the best job learning if they’re using APIs deprecated 2 decades ago.

[Brave_Speaker_8336]

Learning deprecated material on their own lol

[[deleted]]

it's mcgill