5 Java concepts you MUST KNOW!!

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In this video I want to discuss 5 Java concepts that you must know as you start you career as a Java software engineer.
#amigoscode #java #javaconcepts
IntelliJ Course here: amigoscode.com/p/intellij
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⭐ Table Of Contents ⭐
===========================================
00:00 - Intro
01:24 - IntelliJ IDEA
02:58 - How Java Memory Works
04:06 - The Java Language
05:52 - Data Structures
07:15 - Testing
09:58 - Outro
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10 июл 2024

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Комментарии : 327

@amigoscode 2 года назад

💯 IntelliJ Course here: amigoscode.com/p/intellij 💯 Join Private Facebook Group and Discord - amigoscode.com/p/join-community

@adilwise 2 года назад

Hello brother, I'd love to get on a project with you. No matter how little. I don't expect to get paid or anything. Hoping to hear from you.

@n4870s 2 года назад

I can argue memory internal work is critical. You basically need to know how when and where to declare vars.

@shurazeta Год назад

When we could enjoy the memory java course?

@dadi7465 2 года назад

1-IntelliJ 2-Java Memory 3-Java Basics 4-Data Structures 5-Testing 3-classes,abstract classes,objects,inheritance especially interfaces 4-list,maps

@edupazz Год назад

Thanks

@Judosaper 10 месяцев назад

Thank you

@downfall991 2 года назад

I like the fact that you are focusing on teaching us how to become better programmers and not just how to program. Thank you for that! 🙂

@rxtechandtrading 2 года назад

That is true he is good that way-i like this guy-very personable

@matjazkranjc3511 2 года назад

I totally agree. I have more then a decade of java dev behind me and through this foundations you can achieve anything. Thanks for clear explanation!

@anastasiagavrilita6567 2 года назад

Your videos are clear, always up-to-date, and just easy to follow along, a blessing!

@WisomofHal 2 года назад

I'm a Java Developer. These tech talks are awesome. Having a coffee and talking Java, literally two of my favorite things! Great video brother.

@achmadsyarif5129 2 года назад

Hi sir!! i want to ask something,I'm a college student and I chose Java as the language I want to study, and I enjoy it, but my friends recommend learning other than Java because they say it's rarely used in industry? is this true? thanks in advance

@WisomofHal 2 года назад

@@achmadsyarif5129 This is not true. How much industry experience do your college friends have. I went to college for 4 years and have been in the industry for 3. Java has a SDK (software development kit) for almost every major technology. Here’s a short list: Adobe Experience Manager (uses Java exclusively on the backend and pays well), Salesforce, AWS (the largest cloud provider contains a large Java SDK to write lambda functions, interact with EC2 instances, S3 buckets, security groups and so on), Spring framework is a massive web framework (uses Java and pays handsomely), and the list goes on. Java is a strong language of choose for web development, mobile application development, and desktop development. If you’re interested in big data, Apache Spark has a large Java SDK which can be used for data engineering, ML and data analytics (as well as AWS). Of course, language is just a tool. Maybe Python would be better in other situations or you may need to use JavaScript. Either language or knowing all three is ideal. But if we’re just talking about Java, you cannot go wrong as is used extensively throughout industry. Java is used extensively for interviews when writing data structures and algorithms because it’s not a very hard language to learn and it’s truly object oriented. Trust me, knowing Java well can provide a great career for years to come.

@achmadsyarif5129 2 года назад

@@WisomofHal I'm a little hesitant because most of my friends study web development, they learn php, laravel and so on, besides that maybe I still haven't seen the concrete form of learning java results, unlike web development. thank you very much sir, your answer really strengthens my determination to really explore java, and it is possible to also learn other tech stacks while learning java, hopefully you are always healthy.

@leonid8341 2 года назад

Thank a lot for your videos! Dont you plan create courses explaining "deep spring"? How annotations works, how beans initialize, how to inspect context, what happens when we work with AOP (aspect), how to deal with all of this, etc. Something like "Understanding Spring not for beginners"

@river4267 2 года назад

This would be great actually. People suck at explaining this stuff lol

@lijanivanwykdevries4174 2 года назад

Absolutely! Would be a super help if you made a video on that

@mateusribeiro5754 2 года назад

I am not an english speaker (i am brasilian), but i love your videos because you pronounce the words correctly, without slang and abbreviations and it helps me to understand. thanks!! =)

@MrRomanvideo 2 года назад

Exception handling might be added, multithreading also. Clean code and java code convention defenitly MUST to know

@chillappreciator885 2 года назад

Nah, multithreading is not that important. In real world projects all that stuff is happening underground. Anyways as a newbie you won't understand it good enough to actually apply to anything meaningful. So not worth to spend your time

@BlazedOutTurtle 2 года назад

@@chillappreciator885 idk about that, I agree that beginners shouldn’t dive too deep into concurrency, but it absolutely helps to at least know about race conditions or know how thread pools work at a high level, most industry level applications involve some type of parallel and/or concurrent execution.

@MrRomanvideo 2 года назад

@@chillappreciator885 agree, not for beginners

@lukasjacobs2358 2 года назад

One big problem with IntelliJ: There's a lot of legacy projects out there that are still maintained in eclipse and are not easily portable to another IDE.

@glowiever 2 года назад

in my case it's netbeans lol

@mikseros123 2 года назад

I am using Eclipse for a long time. ALso Eclipse + STS. And in my opinion, for spring boot Eclipse + STS is wheey better than inteli...

@josetobias8084 2 года назад

Not only for legacy projects I would say... no Java IDE will ever come CLOSE to what Eclipse can offer for the developers. Companies that work with closed source software will use it to have internal plugins (any of the big tech companies with a Java and/or C/C++ stack), and big companies that want to offer a professional environment to attract developers will use it to provide a truly immersive and evolved experience (STS). IntelliJ is cool, yes, it's very good, it's amazing. But Eclipse is much better and is the standard when we talk about Java development. JetBrains has other amazing tools that are the standard, but IntelliJ is certainly not one of them.

@PutsOnSneakers Год назад

WTF are you all talking about? source code is always independent of what IDE you're using... ¯\_(ツ)_/¯ you can load up any java project in any java compatible IDE. just dont expect IDE specific settings to be picked up by the IDE.

@lukasjacobs2358 Год назад

@@PutsOnSneakers Hate to break it to you, but that's not true in practice. In theory, yes. But in practice, you very often have weird interdependent projects and things like completely non-standard build configurations that only really get picked up by a single IDE. This is especially true in big and old codebases. I've seen that multiple times.

@makumbo22 2 года назад

Amazing video as always... with important core concepts and not just teaching motivation aswell.... amazing tutor... and friend :)

@gabrielfono844 2 года назад

I really appreciate this video I recently got my first job as software engineer for the minister of defense here in Seattle waghinston. I am taking your java courses since they focused more on java , react, docker and other tool. as junior developer , they told me to focus more on java to be honest I really love your courses. they are lots of things I didn't understand in JavaScript and now I really understand it in java.

@mouadmoufidi7882 2 года назад

Can't wait to see the second part ^^ Thank you for everything :D

@AHairyBum 2 года назад

Testing is not about finding bugs or making sure the code works. A test is your first user of your code. Thinking about your tests can really help you create better and cleaner code, it puts you in the mind of the client rather than author of the code. "Test your software, or your users will" The pragmatic programmer by David Thomas and Andrew Hunt

@rxtechandtrading 2 года назад

I agree with you on that one-unit testing id essential but few instructors do it

@MaryamMaqdisi 2 года назад

That's a really good way to put it

@henrypellowski3394 2 года назад

I'm sooo glad I found your channel. Your information is very concise and well thought out. Thank you so much for your work. It is VERY much appreciated.

@jorgeluishernandez10 2 года назад

Hey Nelson! Thanks for your advise, I'm a software engineer, and I think the software architecture concepts are really important.. hope you can talk about someday about it! Best!

@dimpho.ngache 2 года назад

Great selection of concepts, but I would also add understanding the time complexity of the code is also crucial, especially working with large datasets.

@yaseentarek5819 2 года назад

I think that you are the best one I have ever listen to him about programming in general and java programming you really teaching how to be a real software developer ....just keep going

@mohammedsfr7514 2 года назад

Brilliant content as always,with a very important concepts. Keep Going Bro 💪 Baraka Allahu Fik 🙏🌸

@faizalimuhammadzoda4731 2 года назад

Jazakallahu khayran! I am learning a lot from your tutorials and other videos. What you are doing is sadaqatul jariyah, in shaa Allah.

@joaogoncalves9936 2 года назад

Os cursos são incríveis, sempre recomendo ao pessoal da universidade porém eu só consigo assistir pelo RU-vid,pois tem a opção de tradução automática. Seria legal se tivesse no website a opção.

@omaral-dahrawy1134 Год назад

Your videos are absolutely amazing man. You focus on really important concepts, pretty much anything I come across I can find a video about it here.

@zer2858 2 года назад

Muito obrigado, amigo. Espero que nos traga mais conteúdos similares.

@SVSingam273 2 года назад

@Amigoscode. I would really like to see a complete tutorial on Data Structures and Algorithms using Java on your Channel. I am beginning my preparation for Software Engineering Interviews and I think a Tutorial as well as It's Implementation on a Few LeetCode Problems would be amazing. Thanks. P.S. I love all the content you put out.

@alfbaez 2 года назад

Brilliant question! and the answer is: Never…. I've been refreshing and re-learning lots of concepts. Also excited about the GoLand and CLion Courses coming up!

@DmytriiPavlichenko 2 года назад

Man, the content you create is amazing. thank you

@davemerkury 2 года назад

Nelson with the clutch message!!! Thank you bro! I am taking this to heart to become better and grow!!

@johnnya246 2 года назад

We can hardly wait for the new Java course! Keep up the good work!

@arancle154 2 года назад

So true with testing because I hate writing test but it has saved me time and discover new errors! So true

@cortney2631 2 года назад

Peace unto you, too! We benefit greatly from you sharing your knowledge!

@returncode0000 2 года назад

Not to forget: Debugging in IntelliJ (remote and local), How to read Code, learn to code with a the reference doc when you implement against a new framework and don't seach hours for examples/tutorials, find a mentor, learn to concentrate on coding for about 2 x 1,5-2 hours a day without getting distracted.

@erenyeager4452 2 года назад

Assalamualaikum brother. Could you do a roadmap to become java backend engineer. with what courses to do.

@mohammedchfig2 2 года назад

@Areeb Ahmed Shariff what did you mean by weeb

@erenyeager4452 2 года назад

@Areeb Ahmed Shariff brother I am looking to improve myself. I am sorry if it has hurt you in anyway. Could you help me with the roadmap?

@erenyeager4452 2 года назад

@Areeb Ahmed Shariff brother, any udemy course you would suggest? please help me with me this.

@derren21 2 года назад

Try to google your question

@leonid8341 2 года назад

He has roadmap, on the header of main page

@AHMEDNOORMABDI 2 года назад

Asc Nelson, thanks for your clarification, and it really opens my eyes to what should I have to focus on.

@danielalejandrocoronelberr8113 2 года назад

Gracias amigo, solo por ti me gusta java xD lo vendes muy bien!!! Greetings from Bolivia, thanks for your amazing vídeos!

@futur2214 2 года назад

شكرا جزيلا أخي جمال على مجهوداتك الرائعة.

@szeeshan896 2 года назад

Walaikum assalam brother Thank you so much Amigo for realising me that skipping testing is bad idea of my development part.

@theSDE2 2 года назад

Please make more of such videos for Java. I really love your content

@nmilyaev 2 года назад

Thank you for the inspiring videos. I would also like to see a video/course on refactoring to the patterns

@W4TZ1234 2 года назад

I’m learning java now and this video came at the PERFECT time, thank you so much

@in-thegarden 2 года назад

Hey I’m learning java too I’m 5 months in its intense. How far in are you?

@eltorocornal2649 2 года назад

@@in-thegarden i am going to start lear ing java but i am stock on where and what kind of java to learn. Could you suggest ?

@in-thegarden 2 года назад

@@eltorocornal2649 I’m not sure I can advice you on that as a novice myself. Perhaps someone at a more advanced level can help here. I’m learning java 11 and 17 . 17 because it’s the latest one the last time I checked and 11 because I’m getting ready for a certification along the way.

@mudassirshahzadkk 2 года назад

1 - Intelli j and shortcuts 2 - How JVM works (Heap, Stack, String pool, Garbage Collector etc) 3 - Know the basics (Classes, Objects, Inheritance) 4 - Data structures (Most important: List and Map) 5 - Testing (Especially Unit testing and Mocking)

@erickjhormanromero6905 2 года назад

Great video and i feel happy that i've already been working on them long time ago

@AndrewMorales928 2 года назад

Yes testing is important. Unit and integration tests are important for any project. Also too use the right tools for that specific test cases. Ive seen using mocking the calls in integration tests and I'm like 🤔🤔

@TrairiChillHop 2 года назад

Wow i do work with eclipse for a long time. actually it was the first IDE that I ever use

@tonycommolli8341 2 года назад

You missed the biggest concept of all - OOP. It is the unifying technology of all the main programming languages. However, you did mention inheritance as a sub-concept.

@lukmanmudi5742 2 года назад

That first question really hit hard!

@Kindkod583 2 года назад

Ramadan moubarek bro :) thanks jazaka alaho khyran

@TheStrategist314 2 года назад

Package structure. Literally file structure seems daunting to a beginner and that affects access levels and all types of other ripple affect stuff.

@user-mv2dq1xr4v 2 года назад

Love from Greece! Great videos!

@gilneyn.mathias1134 2 года назад

I'm just so used to use VS Code that it feels really hard to change for anything else ;/ (even tho Java on VS Code doesn't feel too good, tbh, with the intellisense just stopping working from time to time or the maven packages not being found sometimes too...)

@jgdevelops8440 2 года назад

i broke my femur trying to use vs code with java. But i also broke my other femur trying to learn eclipse :(

@ebjrtux 2 года назад

That's amazing explanation about this concepts, but i don't love tests,OMG!!! Congrats!!

@ianbdb7686 2 года назад

Can't wait for the JVM and interface video I really need it because I took 2 java courses before covid and remembered nothing

@heyyrudyy404 2 года назад

Better than that, How people build a mental model about Java ? I think this is really the must.

@chukwudiumeagu9465 2 года назад

I appreciate your effort and time to build java community, Inshalla we will get there . Please can you inclued to explain how java virtual machine works in our code?

@vitaliypunko1331 2 года назад

Thank you! I look forward your new videos about memory and use interfaces. You are cool 🙂

@SeanLawlorNelson 8 месяцев назад

This is a neat educational talk on Java. Thanks. I would like to learn more about the Java community as opposed to only about the technical and conceptual coding; although the latter is very important. I would point out that in most cases there are diplomatic garbage collection/disposal methods.

@yanurmal 2 года назад

Assalamualaikum, hi bro. Please make video tutorials for simple applications (such as phonebook crud), from the development process to deployment to the production server. To get a complete picture of everything needed in making an application using java, until the application is in production. Thanks.

@arulkumara8031 2 года назад

Sir please make a video for when to use interface and when to use abstract classes..

@bilalsajid1792 2 года назад

Bro your video of a day in a life of a software engineer was downloaded about an year ago in my RU-vid download just wanted to know about your life story by the way I am an aircraft engineer but have always been fascinated by softwares but discovered it later can you advise me how can I come into software development thanks alot Jazak Allah from Lahore Pakistan.

@developerforcloud1478 2 года назад

I am coding in java for a decade now. Used eclipse/sts for a long time, started using intellij. It is really nice IDE but I still use Eclipse/STS along with it. Biggest drawback, you cannot open multiple projects at the same time in IDE, and I hope everyone knows that lot of time we need to load multiple projects. Intellij has lot of issues with maven, caches, memory consumptions. If you have to work with some legacy project, may God help you. I use Intellij, VSCode and Eclipse/STS together. People should try VSCode for java development too.

@arahnid_9844 2 года назад

I learn Englesh and programming from your videos. Thank's for your work 👍

@Ravis98 2 года назад

Explain the errors we get when working with Java + Springboot + PostgreSQL! how to know them better and solve them!

@adriencbl 2 года назад

Thank you very much for your videos. But I disagree with the first point, Eclipse is also an enterprise tool and companies use it. It would be interesting to have a comparison of these tools on a big project, because a lot of articles or videos compare them on personal projects. Does IntelliJ perform better than Eclipse on a big project (with a lot of Maven dependencies, a lot of classes, using Spring, etc ...) ?

@huutri1912 2 года назад

I see thin matrix channel use eclipse for his 3d game.

@Kademlia 2 года назад

Seems like a too broad somewhat uninformed statement. I recently had to switch to eclipse for a large refactoring as intellij is still plagued by a import-organizing bug that wont fix multiple files (open since 2011). Then for other things I switch to Intellij from Eclipse as it is better suited. Bad point overall imo without specific mentions of lacking functionalities.

@mohamedelshenawy2329 2 года назад

Really I like you and your videos I'm always waiting for those videos, Please keep it.

@JonasKeil 2 года назад

Well, this video is a great improvement in title and thumbnail!!

@andromydous 2 года назад

I have a question that either I don't know enough technical terms to be able to search for the solution, or I'm not phrasing it right when I search. So, maybe someone in your community can help. Class A takes object X's information and writes it to a file with a string variable from object X as the file name. It then passes it off to Class B who checks user input info against the what's on file, it sees that it's valid and passes off to Class C who apparently has amnesia. It can't find the file because it knows nothing about object X's string variable to look for said named file. I say Class A, B, and C, but they're really frames. Frame C won't open unless Frame B says it's okay. How is it that Frame B is able to read the file written out by Frame A, but Frame C can't so it just writes to an empty named file (eg: instead of file.txt, it writes to .txt)? I have it such that the file is tied to the object so that another instance of said object can't have access to it, but it can have it's own.

@ds866 2 года назад

Thank you so much Bro, i got many insight from you, may Allah blessing you bro...🙏🙏

@hatemlajili8965 2 года назад

Thank you brother for what you do 😊😊

@anonim00723 2 года назад

Good afternoon, will there be a lesson on writing unit tests? Thank you!

@MrAIProgrammer 2 года назад

I was just thinking the same thing.

@jopadjr 2 года назад

Thanks mate...I would suggest next is about Interview Q/A.

@ryuhayabusa6816 2 года назад

Assalamalekoum, can we have a video about lambda, like all the add methode and tool we have in Java 11 since Java 6 ?

@mariofernandez238 Год назад

Gracias por este video, muy importante, muchas gracias

@gleitonfranco1260 Год назад

I watched your Intellij tutorial and it made all the diference.

@devserendipity3063 2 года назад

Jazak Allah khair brother mashaAllah good video. Could you possibly do videos on some programming principles with examples? Like SOLID?

@mihaiapostol7864 2 года назад

he did one, check his latest videos

@SQL Год назад

It's a great lecture. Thank you! 🥰

@rendyrexgwambat 2 года назад

can't wait for the java memory tutorials

@joenou744 8 месяцев назад

I love your videos. Can create a video of practical coding java? I learn java program for 3 years and I have never create a gui with java. Please could create video based on a real world application. ✌

@lizzmedina4195 Год назад

Some, please, can we tell me: How did he named the video about lists and maps that he mentioned in this one? ?. Thanks for your videos and good teaching technique, also the greatest attitude ever.

@lucianofernandes-dev 2 года назад

IntelliJ is extremely expensive here in Brazil. I'm a Senior Java Developer but no company pay us enough to be able to pay for the license and the Community edition doesn't have all the features we need. Besides, the company I work (the bigest bank in Brazil) doesn't allow us to install other IDE to work with Java. Therefore, I only work with Eclipse. :(

@midouwebdev2224 2 года назад

Wa alaikum salam brother. I really like this intro and your content is the best !

@omarelmady 7 месяцев назад

May Allāh bless you. I'm a CS student and you're my number 1 youtube mentor

@ccl4572 2 года назад

Great vid as always

@nehurane 2 года назад

Hello Amigoscode, can we expect any discount for courses during easter weekend? I am mainly looking for k8s course.

@risithgmt8908 Год назад

Hi amigo, do you have a video about how different java versions evolved, what are features adding or updated?

@mandyronald8187 2 года назад

thanks bro. This is very informative!

@serhat0099 2 года назад

As always - first like, then watch the video and not regret it in a single bit

@zaobenhar9702 2 года назад

walaykum salam my brother thank you so much for your efforts and ramadan mobarak!

@mokka8727 2 года назад

Very important question for me, can modern JavaScript eg. Nodejs …program spring framework as Java does? I searched around but find nothing.

@banglepq 2 года назад

Thank a lot for your video!

@tienthanh21697 2 года назад

Do you think vs code is a decent IDE? I'm new to Java and using that IDE but I'm not sure if it's a good choice in the long run

@moikanal4625 2 года назад

Best as always!

@santiagorey1382 2 года назад

Amazing Video :) thanks ..!

@mersalmohamed 2 года назад

Jazakom Allah Khairan

@DykyKryl 2 года назад

If someone starts to learn java from scratch eclipse would be perfect as a starter ide as IntelliJ could be rather complicated for the begginer

@_Username__ 2 года назад

Amigos brother, do you think I could use vscode for java and spring instead of IDEA? Why would I use/buy IDEA over vscode?

@adventurestudios7 2 года назад

I don't know what's that thing you did at the end of the video but it was funny I had to hit the like button...

@akzmedia92 Год назад

Walaikum selam akhi! just started documenting my coding bootcamp journey. Javascript makes me wanna give up...

@spirothegamer 2 года назад

Apart from the $30 IntelliJ course do you have any course on how to tie shoelaces?

@Gab566 2 года назад

Ikr. It's just a user friendly text editor with a few perks ... more like charging $30 on how to tie your shoes with Velcro straps lol

@spirothegamer 2 года назад

@@Gab566 Look pal, this might sound easy to you, but I am DUMB, I need instructions from experts for SEEMINGLY easy tasks like these. IntelliU has so many buttons , I am overwhelmed! 😅😅😅😅😅😅