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- เผยแพร่เมื่อ 16 พ.ค. 2024
- Are you trying to decide between Rust and Java for your next project? Look no further! In this video, Dario Lencina, staff engineer compares the two programming languages in terms of concurrency, syntax, licensing, and tooling. Whether you're a seasoned developer or new to the scene, this video has something for everyone. So sit back, relax, and let us help you make an informed decision on Rust vs Java.
If you're wondering if Rust is a good language for you, or if Java is still the king of the hill, then this video is for you! I'll share my thoughts on the different languages, and let you know which one I think is the best for certain scenarios. So what are you waiting for? Watch the video and make your decision!
I am doing this, because you, my dear subscribers requested it.
Here's my cheatsheet so that you can follow along! security-union.github.io/rust...
Code: github.com/security-union/rus...
00:00 Java vs Rust Intro
00:14 Apple Pay uses Java
00:21 AWS wants to contribute to Rust
00:56 Rust vs Java motivation and methodology
01:36 How not to compare java and rust
02:00 Table of contents
02:28 Java language goals
03:54 Java Licensing
04:50 Rust Security
05:32 How Memory Management works in java
06:15 How Memory Management works in rust
07:07 Dangling pointer in Java
08:23 Dangling pointer in Rust
09:10 Null pointer in Java
09:33 There are no null pointers in Rust
09:38 Making rust panic using refcell
10:00 Compilation
10:46 Blocking Concurrency
10:57 Deadlock in java
12:10 Deadlock in rustlang
13:19 Non Blocking concurrency
13:30 Create multithreaded mpmc channel with java vs rust
18:21 Tooling
19:00 Install java sdk with sdkman
19:13 managing rust toolchain with rustup
19:54 Using sdk man to install gradle
20:49 create rust project with cargo
21:14 Spring boot vs actix memory and cpu comparison
23:49 Conclusions: both are awesome, (but Rust is newer and better) - วิทยาศาสตร์และเทคโนโลยี
💞💞 this is the real full comparison.
And Thank you Dario for the shoutout 💞🔥
Thank you my friend, I hope you have an awesome 2023!!
I write Rust so I can keep my passion alive and I write Java so I can stay employed
The market is ready for rust developers! Checkout all the positions on LinkedIn
Java can be fun if you write it intuitively rather than following some strict guideline
I agree! I remember the Java EE enterprise beans stuff, it makes me sad!
There is a little mistake in mpmc section related to Java assumptions. You must pass the final or effectively final variable to lambda but not to thread. And behavior for primitives and objects are the same. In Java, all parameters are passed by value. In the case of an object, the value is a reference to that object, so the reference still keeps the final props. But anyway, it's a great video!
Thanks for the feedback mate 👀👀
people who complain about the main method in java have no idea what theyre talking about.
That is exactly right, nowadays you do not even have to type it, the use will do it for ya
great video! about dead locks - is there any abstraction around rust Arc to prevent it? like all of your values must implement some trait to use it between threads - and throw error on compile time if you trying to do so
Hey @kuqmua! I found RwLock so that you can only get one write lock at the time which helps! doc.rust-lang.org/std/sync/struct.RwLock.html
This type of lock allows a number of readers or at most one writer at any point in time. The write portion of this lock typically allows modification of the underlying data (exclusive access) and the read portion of this lock typically allows for read-only access (shared access).
Great video and thanks for going into the details. I've grew up with Java/C++/Python and been learning some Rust for a year as an additional tool to get things done. It's been a pleasure to work with.
glad to hear my friend!!
Compilation times would be nice to compare. Say, Spring Boot vs Actix or smth. That would be the place Java shines, especially because it doesn't need to recompile all your dependencies even once.
But the real difference would be in the possibilities. In Java, you can change byte code during loading (per class basis) so you can write your "agent" which would instrument client's code with whatever logic you need. It is utilised heavily by telemetry libraries such as DataDog , OpenTelemetry, etc. In Rust, I think, you have to instrument your code manually.
And Java has pretty good Reflexion API. Haven't seen any in Rust
These could be a real dealbreakers for some projects I think.
Yes! Compile time is still terrible in Rust! Also Java Agents are awesome! I completely forgot about them.
I love how mature the Java echo system is!
I laughed out loud multiple times. I see your channel growing a lot
even as I was editing the video the part with the for loop "benchmark" had me laughing!!
and yes, would like to talk about async programming. is there implicit timeout for async functions in rust and what happens if you reach it - and how handle timeout error for async functions without panic - with Result.
You got it chief!! I just added it to the queue, I'll include timeouts and some other common pitfalls!!
There is null in rust, std::ptr::null
Yikes, thanks for pointing this out, how do you use it?
@@dario.lencina You don't. Null pointer should not be used in application, in any form, unless you're working with Systems development. You can get a null pointer by invoking function, ptr::null(), which gives you a raw pointer, pointing to null, which to do anything with, you need to be in an unsafe block.
Makes sense, 👏🤗 thank you so much
I have one tiny nitpick about around 17:10 and in a couple other instances. If you want to compare the libraries of the languages to one another that's one thing. But it should be explicitly stated that you keep saying "Rust" and "Java" interchangeably with "Rust's libraries" and Java's libraries.
I see people do this a LOT when they're comparing two languages but in fact they are just comparing the libraries for the language.
Thank you for bringing this to my attention. I appreciate your careful listening and your point is well-taken. I intended to compare the libraries available in Rust with those in Java, which indeed are distinct and should not have been referred to interchangeably. It’s important to be precise when discussing the characteristics and capabilities of different programming languages, and I’ll make sure to be more specific in future discussions. Thanks again for your feedback!
Ironically, I searched "Rust vs Java" and the first video was 1:36. I immediately closed it after seeing the while loop. :D Then youtube recommended this video on my homepage and here I'm. Such a cool channel.
Welcome to the party brother !! 🥳🎉
hi . a great video man . actually i would love to switch to rust . but i don't wanna dive wrong to the lang . could you please make a roadmap vid . so you share u'r experience with us . thanks for the vid again
Hey @Rhino, I'll definitely do this, the most common pitfall (imo) is to try to learn smart pointers and lifetimes in too much detail as opposed to copying objects around just to get started. In the mean time I recommend that you read doc.rust-lang.org/book/ it should take less than 4 hours and it provides a great "getting started" guide.
Thank you so much for your feedback!
@@dario.lencina This is definitely an underappreciated comment. I've tried time and time again for about 3 years now to learn Rust. Kept giving up on it very quickly because ultimately every book gets right into the nitty gritty. On New Years, I was alone with my little bro, so I decided to try Axum again and successfully built a static web server with various API handlers! I learned more doing that than anything else so far.
@@v01d_r34l1ty neat!! 🤗👏 good for you, is it a public GitHub project that you can share?
@@dario.lencina Not yet! It will be once I get JSON web tokens and authentication implemented. I'm trying to make a very basic chat application (demo video on my channel).
@@v01d_r34l1ty sweet!!
Good video, and you are on point that everything is a tool, good engineers do not fanboy over one or the other just know what is better to use in which situation.
Performance is not a perk of the language but your knowledge of how hardware works and how to write code that takes advantage of it. You can have insane performance with both.
That’s right my friend! Both are awesome tools!
Being analytical as opposed to fanboys is always better
Could a boxed value in Rust help create that dangling pointer?
You are saying that we could use Boxes to create dangling pointers? Wouldn’t the borrow checker prevent it?
You should also compare rust to Java + GraalVM Native image!
Wow 👀👀👀I need to look into that!! Thanks for sharing
so , first c, then java then rust,
then life is set if the brain is good?
🤗🤗yes, it is the only way to illuminate and achieve nirvana
crossbeam is not necessary, it's already inside the std library on std::sync::mspc
Nice!! Good to know 🤗🤗🤗
Here's my cheatsheet so that you can follow along! security-union.github.io/rust-vs-java/
Nice video but you need better mic etiquette. Constantly getting “plosives”.
Point taken, I’ll add a pop filter to deal with this, thanks for watching
Is this better th-cam.com/video/LWwOSZJwEJI/w-d-xo.html&ab_channel=SecurityUnion (added a pop filter)?
Java is the best language in my Opinion (at least for learning), everything is literal and verbose. I hate programming languages like Python and Ruby, they seem to complicated for me and I don't know why (perhaps abstraction).
My first language was Js/Ts but once you deal with maps, reduces it gets kinda weird. I'm a SDE nowadays and I only learned to program after I learned java. In my opinion the annoying boilerplate makes sense in my head.
Java does have its merits with explicit verbosity, which some find reassuring like a well-detailed map.
Yet, isn't it thrilling to sometimes navigate the programming jungles with just a compass?
Python and Ruby are like that, offering a concise syntax - it’s less about the roads taken and more about the adventure.
Admittedly, Java's boilerplate can feel like a safety harness, but maybe after scaling the cliffs with JavaScript's flexibility, that harness just feels a bit too snug?
As an SDE, you've mastered different terrains, so why not enjoy the view from all perspectives?
@@dario.lencina What a comment! Yes .map in JS are pretty useful, but they only made sense when I made them in Java HAHA. like every other data structure One example is when I do Hackerrank/LeetCode challenges I do them in Java because it's easy for me and I'm a fullstack with strong frontend side and don't know why.
I do well with C and C++ codes seems more well, but easier than Ruby/Python.
My guy. Turn off the dynamic zoom. Very distracting.
Thanks mate, I’ll consider it. Believe or not some people actually like it ?
@@dario.lencina interesting.
I guess someone must. I can't watch Networkchuck because of his dual camera setup. He has quite the following though.
@99codemister I’ll make sure to make them less distracting
Promo sm 😩
What's promo sm?
A nonsensical and trivial comparison, and of course wrong.
Lol, thanks for your feedback son, time to go eat your Java Beans 🫘