What is Dependency Injection? | Why | Spring

[@dhananajaykrishna8259]

You're not just a programmer but also an awesome story teller. When asked about dependency injection people make it so complex that you start scratching your head.... But you explained like it was a piece of cake. 🙏

[@deletevil]

Big brother, you speak so beautifully your words directly injects into my brain without an error at all. Everything becomes so comprehensible when you explain it.

[@ShivamSingh-yl7jo]

Best tutorial on dependency injection. Finally, I got what it really is.

[@awaisjamil5713]

I am thankful to you, I remember after graduation your videos were the source of preparation material for me for interviews and I landed a job. Respect from Pakistan.

[@doglover4621]

One of the best KZbinr in teaching. Seriously I learned a lot from this channel

[@krishnabangari9287]

Man, 5 years old video and still the best explanation about dependency explanation. This guy truly knows the subject, and he knows which example to pick to explain what topic. He has the teaching spirit in him. Hands down the best youtube channel. whenever, i have a doubt i come here, dang the concepts are much clear. Kudos to you brother.

[@gregc6107]

At it's core, dependency injection centralizes the creation of concrete objects that your client (meaning your code) uses and can use in many places. This provides many benefits, first you are able to easily switch out the implementation, you are able to easily test the implementation, and you are able to wrap or manipulate how you want it to instantiate. Whether it be wrapping authentication around it or adding pre and post processing, or auditing/logging to it and you can do this retroactively in the entire system in a very easy manner.

[@chococookiess_]

To completely understand what he says, you need to have seen these things work in real life. 2 years ago when i was a student , i tried to understand Dependency Injections, but I didn't really understand all of it! And now when i write my own mock objects and dependency injections , i understand why it is needed. So dont worry if you dont understand this video in one go!

[@piyushbhuva9975]

man, the passion and joy of teaching in this guy's eyes is sight to behold...

[@AdamVigas]

This guy is teaching me everything...i am not even browsing youtube. Once i find this guy i go ahead...and it always work. Best teacher

[@mahmudhr2760]

Sir, from the beginning of my programming you have been with me. Thank you so much for your instructions !

[@specialk2720]

This guy, men you are a good teacher. I don't know if you know David J. Malan from Havard? You and that guy are my best teachers of all time. Good job!

[@hirenvadher2610]

I know David

[@jagadeeshgurana4490]

you are the god of simple and elegant explanation of the most complex topics.

[@RAJATTHEPAGAL]

Really good explanation I covered Software Engineering recently + have been using Spring and Angular and never actually realised about this loosely coupled idea. Nice philosophy behind how project should be managed. Also the part of testing that loose coupling makes it easier to test, never realised that :-D ...... Great explanation a bit of practical would be plus ...

[@urvashisharma7415]

ive been wandering around for days trying to find a proper explanation for DI...and although im focussed on DI in Dart this video was the BEST to understand what it means...thank you very much sir

[@srijan5298]

Sir i'm a student of Cdac and even teachers here, also dont explain concepts like this. Thankyou sir❤

[@AnthonyHernandez-tb4cu]

I have watched more of your videos to learn SWE topics than I can count. You have been instrumental in allowing me to understand these concepts intuitively. Big thanks!

[@neerarjayan5957]

You are the God of Java dude.. I was searching this explanation for a whole week and i got that within 8 mins from your video. Thanks a lot.

[@stevensmith5626]

Fantastic explanation that takes away the confusion. We tend to use such big words when a simple explanation is the best way. I have been doing this concept since 1975 and it always amuses me when the industry comes up with a new concept that really is just doing good programming with a different word. Great job!

[@karthickd8251]

My day starts with Telusko

[@roshanpandey5357]

Yeah, now I understand .. what is dependency injection, why it is required, how it works ... this man is too good #telusko

[@hinafraz528]

thanks for using classes on screen. got some idea of the concept.

[@wodiarefaine5076]

I thoroughly enjoy the way you explain things; you are undoubtedly talented at it. Personally, I highly value and appreciate the service you provide.

[@behzadmokhnefi1636]

The best teacher that i have ever seen , thanks a lot !!!!!!!

[@shuvamsahoo1130]

Best teacher on KZbin 😍

[@iarpanbose]

Im 7+ yr experience in java and spring and i always screwed up the defination of dependency injection in the interviews 🤣

[@dibyaranjanparida6666]

Hlo bhai

[@meetalodariya5972]

the best explanation I found on the internet................

[@ravimule1924]

I saw so many video's and article about DI but still somewhere i'm confused but you solve it using very simple way...Thanks

[@chinmaydas4053]

How great teacher you are.. Lots of love and respect sir.. Great topics.. we need practical implementations of all these concepts in projects..

[@chinmaydas4053]

Thanks for reference.. I have watched the video.. greatly explained sir..

[@chinmaydas4053]

Sir i'm confused wheather i should learn new java10 features like var, garbage collectors etc or it's good or bad and future updates of java bcz oracle now saying many things... Please sir.. make a complete video on all these topics.. would be helpful..

[@yosukeyoh]

this is the best explanation about dependency injection in Spring ive heard so far. Simple but I can understand it so well! Thank you!

[@berjaoui92]

Few developpers can explain. Telusko can. Thanks for sharing.

[@dhanush4422]

now i understand dependecy injection. what a great examples you use sir. easily understandable even for layman

[@A_A7337]

Your explonation is amazing. Thank you for the video

[@cillaqiu7142]

I forgot why I subscribe you, it must because of other video. But I know you save me again, so cleeeeeeeear and understandable. Thank you.

[@gyanprakash302]

This guy is GOLD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@SachinSingh-sm7yg]

Sir You're a Greate Teacher.

[@nitinjain2490]

Clarity of DI is 🔥 by far the best video ❤️

[@Yash-xd7ny]

became fan of your teaching...awesome sir

[@Anju02]

You just explained the concept nicely manner. Thanks for explaining! finally got it.

[@wasiqkhan5975]

I couldn't understand it yet I have to see it once or twice more but it look's like it is the best explaination of dependency injection. thanks

[@MunniDivya]

hands down! best video with simple explaination

[@SA-oh9bk]

Thanks for the real concept of dependency injection.

[@horvathmilcsi]

Made some thimgs clearer: loose coupling is important for unit test separation, dependency injection is controlled by a 3rd party. Thanks man!

[@eliasfonguhnji4898]

This time I got your explanation for DI very very clear

[@prateekgupta11]

His way of expaination is beautiful. I can say a lot of foriegn trainers and linkedin learning course teachers are useless in front of the way he is explaining things.

[@andreme7326]

You have a talent for teaching.

[@raulguzman8070]

Omg man you´re the best. It´s clear your explanation.

[@YouradOmrik]

Things are easy to understand but difficult to explain, thank you so much Sensei.

[@shalinidusharla9142]

Sir, you are a yogi who makes students enlightened.

[@lifeind4293]

Simplest and best explanation of DI. Thank you!!

[@ruvindaranasinghe780]

One of the better Java channels :)

[@sidique5269]

Great Navin Sir you are always there to help me ...no words for this kind of explanation

[@ananddhapse408]

Awesome explanation Really i enjoyed your teaching...👌👌

[@pookiedudu]

Wow, now that's a brilliant explanation 💯💯

[@arindamroy7671]

Comprehensive and relatable. Nice analogies to explain the concept. Thanks Navin !

[@aditydud]

Your videos are always best.

[@ramsciutube]

Marvelous teaching style. Superb, Marvelous, Mind blowing.

[@softtechbro]

Amazing! I enjoyed this!

[@88ashwa]

You are a great teacher Naveen garu, than you for the video series..

[@dpatel4362]

Thanks for a very thorough and simple explanation. Your tutorials are addictive. God bless you.

[@praveennarvaneni2970]

The example is awesome. Thank you

[@ruchikachandra5636]

Really good explanation. Your example is very understandable.

[@bunty9492]

Myself Shamim from your servlets,jsp, hibernate, spring batch great awesome video please make more spring hibernate videos in detail like this video.

[@andreicheta9403]

this guy make's me programer :))) thank's!

[@Ignicolis1]

Me too))

[@ayenewyihune]

I came here for easy explanation and yes, as expected😊

[@sjvait26]

Very good explanation. Thanks.

[@ashuzguitar]

Thank you so much Naveen Reddy ! I've some experience, and even I found this very useful. So far, I've used @Autowire n number of times to inject @Repositories in my @Services and to inject @Services in my @Controllers. But after watching your video, it became crystal clear, why!! The example of Hitachi and Samsung Harddrives implementing Harddrive interface and Laptop using loose coupling by means of someone else injecting the dependencies - @Autowire and @Component - is a truly great example, and it has helped me grasp this concept, I'd like to believe, concretely. Earlier I knew how to use it, but wouldn't be able to explain so lucidly to some one if they asked WHY. I'd just say do like this, as it is industry standard :D :) Similarly, I knew about JUnit testing with Mockito and mocking certain classes, etc. But didn't consciously realize that due to loose coupling only mocking is made possible. I never worried about how mocking is made possible. Now I know. :) \/, So, thanks a lot. May god bless you ! You now have a new subscriber.

[@Akki31]

Very good examplaination sir about dependency injection... thanks for explaining in such easy way and you have given a very good example which make us to understand easily amd better way.

[@ravikyasth6851]

Thank you so much Naveen Reddy !

[@sagarkapasi099]

This is the first time i understood dependency injection and the jargons related to it! Thanks.

[@worldwide1515]

Such beautiful and clean explanation

[@vladanulardzic5859]

Excellent explanation based on real practical example ! Thank you for sharing this valuable knowledge. Vladan Ulardzic

[@Black_wiseman]

You are the best, thanks for the explaination

[@archu0078]

You have got very good teacher skill. Awesome 👏 . Very clear and concise

[@sidharthanayak]

Very thorough, simple and informartive explanation!

[@7988honey]

Great I knew we use this for loosely coupled but the way he told is very good.

[@adityadubey5204]

A big big thanks naveen :)

[@poojagp5895]

Hi sir,am a big fan of your tutorials ....I request you to make videos on microservices in java ......

[@RameshJothimani]

A simple and an excellent explanation. Thank you very much !

[@GoutamSikder]

Very Good Explanation, Thank you.

[@abhishekchavan1782]

Very well put together

[@tejashwinihampannavar8398]

Thanku for your wonderful explanation sir🙏

[@jarhrodriguez646]

Extremely grateful for this explanation sir!

[@KotaSarat52]

The knowledge u share to us is priceless

[@KH-hn3nu]

Thank you sir!!! Succinct and engaging explanation.

[@umesh1056]

Nice explanation superb ..Thank you

[@shanchessmetilda5550]

Hey ! You have it so simple.Thanks for this :)

[@rissandimo]

This is an excellent video, thanks for taking the time to make it! And for the people commenting that he needs to provide some sort of implementation, he posted a link to that in the description: @t

[@rajibsarker3729]

excellent example.

[@BK-nb9or]

Very useful and good explanation! Thank you!

[@theistengineer2850]

Very well explained. Thank you.

[@felipevillarroel6259]

Thank you for this clarification, I understood it completely!

[@themisc.guy936]

Sir, i want to learn Spring, which playlist is suitable for me to learn from scratch? Spring Boot or Spring MVC or any other playlist??

[@Overthought7]

I'm new to Java, and I'm glad you gave some simple examples, but I think you needed to go into more details. It's unclear to me why these two examples are different. It seems like in both, you define a class in one place and instantiate it in another place. What's the difference?

[@AlayDhagia]

Learned a lot. Thank you for putting this up.

[@jeniljain6928]

Great explanation!! Really recommended. Thank you :D

[@arungore6578]

You have improved lot in the area of content delivery.. keep going on

[@SyedAli-tc3yu]

I actually enjoyed this.Man O man you are a gem

[@sudiptochakraborty2874]

3:36 can we instantiate a interface :) ?

[@vaibhavbhavsar1]

Quite Impressssive , i understand everything in just 8 min thanks