1. SOLID Principles with Easy Examples | OOPs SOLID Principles Interview Question - Low Level Design

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Today we have covered SOLID principles, which is frequently asked in interview.
S - Single Responsibility Principle
O - Open/Closed Principle
L - Liskov Substitution Principle
I - Interface Segmented Principle
D - Dependency Inversion Principle
#solidpriciples
#oopspriciples

[@shreyshreyansh]

Wow, I went through mutiple articles to understand SOLID but no one explained it like you. What a man!!

[@doingsneakypeakylike]

the most crisp explanation of SOLID I've seen so far! Thanks!

[@ConceptandCoding]

Thank you

[@ConceptandCoding]

Enjoy the complete LLD and HLD playlist (both BASICS to ADVANCED): Complete LLD Playlist: kzbin.info/aero/PL6W8uoQQ2c61X_9e6Net0WdYZidm7zooW Complete HLD Playlist: kzbin.info/aero/PL6W8uoQQ2c63W58rpNFDwdrBnq5G3EfT7 Java Playlist : kzbin.info/aero/PL6W8uoQQ2c63f469AyV78np0rbxRFppkx

[@111rhishishranjan2]

please share the slides of this lecture in description box

[@9675A]

This is best explanation of SOLID principles on internet.Even so called FAANG KZbinrs could not explain it in such simple language.Kudos.

[@roohanideepak]

I m feeling blessed to come across ur video randomly, I know these principles already ready multiple times, but always used to forget.. as provided info was not that much easy and was incomplete. you made it simple, clear and complete. Please continue ur work like this. u will grow a lot. If we see all your videos then clearing interview will become easy i feel

[@ConceptandCoding]

Thank you Shivani

[@yashobantadash6670]

same here! Really bleessed to come across your videos!

[@pranshu_g]

Thank you for creating this much required playlist, with proper explanations!! 🙏

[@ConceptandCoding]

thanks Pranshu

[@sdash2023]

The best ever explanation of any design principle. Love this description. I dont have to look it twice, everything was by heart only with one look. Will definitely share it with my friends.

[@ConceptandCoding]

Glad to know that buddy

[@ujjawal_]

your videos are gems sir, really appreciate your efforts 🙏 looking for such content in future ☺️

[@ConceptandCoding]

Thank you

[@AbdulKadir-bh3el]

its been 2 months i am searching a resource/channel to learn basic of LLD and today(15 Nov 22) i found your post on linkedIn and its really great content , finally got it...Thanks Man😇

[@ConceptandCoding]

Glad to know this Abdul, i hope your LLD and HLD both concepts will get stronger.

[@alluriyashwanth9488]

A great and yet simple explanation of SOLID principles!!! I can say am enjoying these sessions and as well learning!! Keep going…

[@ConceptandCoding]

Thank you 🙂

[@sakshamsondhi2019]

love the clear and to the point presentation with examples. Thank you.

[@ConceptandCoding]

Thank you

[@kauraman6991]

Watched so many videos. Understood only here. Thanks for explaining in such a great way!

[@ravilamkoti5081]

Damm bro it's my first video I'm watching of your playlist but you gave so much of real world scenarios for Open Close. I'm really liking your video.

[@ConceptandCoding]

thank you Ravi

[@pavanls2436]

Kadak explanation Bhai. You're amazing. I have a really clear understanding of how SOLID works and I don't have to spend at least 2 hrs trying to understand over and over again

[@ConceptandCoding]

thank you

[@mayurupadhyay3216]

Very simple and straight explaination of SOLID principle bro.. thank you very much for sharing your knowledge and helping us learn !

[@ConceptandCoding]

Thank you

[@user-of4gq9jd7f]

beautifull explaination , i am trying to learn this from 1 year , you explain very well

[@darkhorse4466]

Hi sir, really crisp explanation of the concepts. One addition i thought would be great was the repercussions of not following each of these principles. That would give the viewer an even better feel for the principle

[@ConceptandCoding]

Nice feedback, thank you

[@Mohd_Rashid_Siddiqui]

I have just started your LLD playlist, easy to understand with examples. Thanks a lot.

[@ConceptandCoding]

Thank you

[@raghavddps2]

First of all, fantastic video! These principles definitely help in writing scalable and more maintainable code. However, in the majority of the use cases we encounter in day-to-day software development, following these patterns or adhering strictly to the SOLID principles might sometimes be overkill. If you're working on something temporary or for experimental purposes, avoid making the code overly complex just to adhere to principles. Instead, focus on making the code more readable and understandable for other developers.

[@syedaqib2912]

Came here from Linkedin post - Really well explained SOLID I have ever seen, will complete entire series !!

[@ConceptandCoding]

:)

[@patel5532]

Awesome lecture, Thanks for making such an informative section.

[@mukeshmahadev7419]

Hey bro Very Clear explanation. Thank you 🙏 liked the way you have structured the video content in short time. Telling it after watching many of your videos You got skills, please continue making content like this. 🇮🇳🇮🇳

[@ConceptandCoding]

thank you Mukesh for your kind words

[@riteshjangid6464]

beautifully created LLD playlist better than online paid content, using these videos i cracked my LLD interview easily special thanks to Shrayansh sir

[@ConceptandCoding]

thanks Ritesh and my name is Shrayansh 🙂, not sure if you are pointing to somebody else. But thanks again.

[@riteshjangid6464]

@@ConceptandCoding sorry sir 😂 corrected but content is accurate i was able to crack my interview and also please keep posting videos like this

[@ConceptandCoding]

🙂🙂 thanks buddy. Pls do share with your linkedin connections, if you feel content is useful

[@RahulVerma-fz2jf]

Loved the video man. Excellent work. Really simple to understand and follow. I am very clear about SOLID now.

[@ConceptandCoding]

glad to know that :)

[@anjonroy7408]

This was so nicely explained. Thanks man really appreciate your effort !

[@ConceptandCoding]

thank you

[@LOFI_WORLD_SONG]

i understood easily..very first time..best best channel hidden gem

[@sraynitjsr]

This video needs 1M likes, Developers.... watch and understand this, I'm very sure, you will love it. Just awesome explanation.

[@ConceptandCoding]

Thank you

[@majlishub]

Really amazing video, A very detailed and complex problem explained easily. I was asked about this question in my interview as a software Engineer. I hope it helps everyone like this video helped me.

[@ConceptandCoding]

Thanks

[@rajchaurasiya1265]

Aap jaise real-experience and conceptual teacher ke need hai bhaiya, thanks for teaching aap please aise he bne rheyega🙏🙏❤🙏❤🙏❤

[@ConceptandCoding]

Thank you 🙏

[@noonecares-786]

sir , i am come from linkedin and i watched your videos , all are awesome . please crete more and more videos those best videos help milions of students.....thank you

[@AbhishekKumar-kk6qs]

First-time im learning about SOLID principles really very interesting video.

[@ConceptandCoding]

thank you

[@mannusharma4620]

hats off to your skills in explaining this very important topic so easily.... Great work brother 😃

[@abhishekpattnaik8531]

Great explanation!!. Even for revision also, this video is sufficient to recall the Solid principles.

[@ConceptandCoding]

Thank you

[@udaydodiya5311]

A very great and simple explanation. it is very easy to understand and easy to implement...keep posting this types of vedio..keep going and keep shining😊😊

[@AtharvaRao0104]

What is the difference between OCP and DIP? Here in both cases you used abstraction as central concept, but why do we have 2 different principles? Also It would be great if you can include what problems we face if we violate each of these principles like difficult to make a simple change, a change causing unexpected side effects, difficult to reuse, difficult to read and understand and hence maintain ... these things are also important in addition to know the principle.

[@nishaaggarwal7876]

So complicated things, explained so easily with examples. Thanks a lot :)

[@nishaaggarwal7876]

Is it possible for you to share the OneNote link that you have presented?

[@abhishekgupta4570]

Nice content and understood well. Just one problem i face is to apply on real world project with complex buisness logics and I didn't find any medium-big open source project with best practices to follow. If anyone know good example of any real world project with these design principles pls let me know.

[@deepanshukumar3943]

Phaadu bhai. Pehli baar itna mast kisi ne samjhaaya hai. Thank you.

[@ConceptandCoding]

Thank you, pls share it with your connections

[@deepanshukumar3943]

@@ConceptandCoding sure bro.

[@Bobby-mf6fw]

Must say wow wow wow abtk khan the. I was afraid from this topic. Now it's crystel clear. Thankuuhh!

[@dipendupaul]

Great explanation. You've really understood the concepts and now helping others by these videos. Great going. Thanks for putting this together.

[@ConceptandCoding]

thanks

[@sank9090]

Very Explainatory video on SOLID principles with easy examples in respective of interview

[@ConceptandCoding]

Thanks

[@nehaagarwal7482]

Easiest Explanation available on entire youtube. Thank you so much.

[@prathameshyadav2001]

Great video. No too short, not too long. Perfect explaination.

[@ConceptandCoding]

thanks

[@yogeshjoshi8021]

Nice Explanation .Interviewer asked me all SOLID principles.& I have explained him in the way you have explained in this video. I have already checked many udemy courses and websites for SOLID design principles and Patterns .But the way you have presented all these things to us is really fantastic. Thank you very much

[@ConceptandCoding]

Thanks

[@rajeshranjan2293]

Amazing explanation ❤ Fully short & precise but very clearly understandable😊👍🏻👏🏻👏🏻👏🏻

[@ConceptandCoding]

thanks

[@varunr3055]

Great explanation and examples to understand the concepts

[@ConceptandCoding]

Thank you

[@PrateekSaini]

I've seen multiple videos/tutorials on SOLID principles and this is the best explanation with too little code and much more clarity.

[@ConceptandCoding]

Glad it was helpful!

[@shrad6611]

Bhai kya video banaaya hai yrr truly loved it

[@realthings7931]

Very Very Good Explanation Able to understand All principles properly. Thank you very much for the video.❤

[@ConceptandCoding]

thanks for your comment and support

[@suchitrasrinivas4330]

Great Video and superb explanation. Except for 1 thing, the I in SOLID stands for Interface Segregation Principle. Keep up your good work!

[@ConceptandCoding]

Thanks

[@hemantvc]

Thank you! Assist me in elevating my coding skills. After viewing video, I feel like I've gone from zero to hero in coding.

[@dhananjaybharati]

Open close principal is the toughest, many still fail to understand it. I spent a lot of time learning it, internet is full of incorrect information on it. Today I watched your video and yes, that's exactly how open close should be implemented.

[@sarthakbhutani9460]

butter smooth & crisp explaination! Thanks!

[@diwakar_kumar]

To the point explanation and easy to grasp. Thanks.

[@ConceptandCoding]

thanks

[@unboxingsillystuffs4920]

Most asked topic explained in simplest way👌. Thank you💚

[@ConceptandCoding]

Thank you

[@bhardwajatul09]

Best explanation of SOLID principles

[@siddhantsharma5300]

Hi bhaiya your content is outstanding. I'll try to finish all up by this weekend before my interviews show up, trust me nobody on entire youtube has done this like you. Simply on another level.

[@ConceptandCoding]

Thanks buddy, good luck for your interview preparation

[@siddhantsharma5300]

@@ConceptandCoding Thank you so much🙂

[@samarth319]

Beautiful Explanation. Thanks a ton!

[@ConceptandCoding]

thanks

[@codewithsakti8197]

Best explanation so far in internet

[@amitsengupta8136]

Excellent explanation! Very precise and understandable.

[@ConceptandCoding]

thanks

[@roshanraj674]

Watched first lecture of lld... few things understood few missed.Need to clear my oops concepts More then it will be easy to understand. Thank you for creating this content related to LLD.

[@ConceptandCoding]

All the best and welcome to the new world

[@pintind6817]

Superb explanation 🙌🙌

[@lavinakhushlani9668]

Very helpful, thank you so much for explaining these concepts so clearly.

[@ConceptandCoding]

Thanks

[@roohanideepak]

Awesome way to explain

[@debanjandas1378]

Wow! Amazing explanation man!!! Great work. Thanks a lot!

[@ConceptandCoding]

Thank you

[@musical_nights]

Thanks to KZbin Algo for suggesting me this, you made SOLID like a cakewalk.

[@AlgoCraftsmanAniket]

Bro you explained it so well with really cool examples..

[@abhishekcse4u]

Very nicely explained with simple examples. Good job...

[@ConceptandCoding]

Thanks

[@technicalindian7548]

Thank you sir for implement more understandable video

[@rafiullahpatel5735]

Thank you so much from Pakistan, Karachi. This video cleared my concept about the Solid Principle

[@ConceptandCoding]

Thanks

[@anshul90100]

Hello SIr, Can you please share the notes also. It would be very helpful.

[@mayanksingh5461]

I am starting your LLD videos and the way you are teaching I really Like it 🙂

[@ConceptandCoding]

Glad you like them!

[@thedarkhorseevil2635]

Hindi hamara matri bhasha ha ...jitna easily samjhana aur samajhna Hindi me asan h baki language me kha ❤❤❤

[@debashishlenka6098]

Finally after 2months study now i feel your 20minutes is everything thank you sir for your great content

[@ConceptandCoding]

Glad you liked the video

[@debashishlenka6098]

@@ConceptandCoding sir how i contact you sir reply plz...

[@ConceptandCoding]

You can ping me on LinkedIn, You can connect 1:1 with me on topmate. All details are present in my About section buddy

[@debashishlenka6098]

@@ConceptandCoding thank you sir and i send u request in linkedin pls accept...

[@shoaibkhalid6156]

Thanks man! SOLID concepts are now solid in ma mind. prayers.

[@ConceptandCoding]

thanks

[@vishaldubey4917]

Best explanation. Keep the good work UP👍🏻. Thanks for video.

[@ConceptandCoding]

Thank you

[@aakashgoswami2356]

Bhot pyara explain kiya bhaiya aapne.

[@ConceptandCoding]

Thank you

[@DeepakDixit0001]

Great explanation, you should also add the fix of the problem in Liskov Substitution section.

[@ConceptandCoding]

Noted

[@d_starcode1197]

Bhai kya mast pdaya aapne aadha video rok k message likh rha...bahut sari cheeze clear hogi..like and subscribed..

[@ConceptandCoding]

Thank you

[@akash-kumar737]

Thanks for the LinkedIn post. Watched this first video on LLD playlist. Very well explained.

[@ConceptandCoding]

Glad you enjoyed it!

[@uniquelymagicgkgyan295]

Very well explained.thank you.

[@sukanyasinha3583]

Amazing explanation!! Hats odd !!

[@melwinvishaldsouza4799]

Thank you for the wonderful explanation Shrayansh. I have a doubt, usually when we write code in spring boot for rest apis we create multiple methods in controller ,service and repository layer class . Isnt this going to break Single Responsibility principle. What is the ideal solution for this? Incase if we want to follow SRP we will end up having multiple java classes, isnt that going to mess up the code repository?

[@vandanar3696]

Best demo with real example bro... Thanks so much

[@ConceptandCoding]

Thank you

[@jagrutitiwari2551]

Loved the video. I was afraid of SOLID principles. You made it really simple. You provided examples and solution of each type. Only for Liskov Substitution was missing.

[@ConceptandCoding]

Thank you

[@alishachhabra8430]

The solution to the Liskov Substitution is to split the interfaces into two ( MotorCycle and Bicycle )and define the respective methods there.

[@akashagarwal6390]

pretty detailed with an example, unlike found in other videos.

[@ConceptandCoding]

Thank you

[@madhuryareddy3994]

Excellent Explanation , thanks for putting all the videos together

[@ConceptandCoding]

Thanks

[@muhammadhassan9162]

Well explained, you may carry on the good work

[@ConceptandCoding]

Thanks 👍

[@technicalzone4387]

Explained very well with easy examples. 👏 👏

[@ConceptandCoding]

Thank you

[@pratap4147]

Awesome thanks for the great Lecture 👍

[@ConceptandCoding]

thank you

[@KumarGolu2001]

Your examples are very clear and easy to understand. Thanks.

[@ConceptandCoding]

thanks

[@aniketmahangare8333]

Hey, it was really the best video I watched on the topic. Thanks a lot.

[@ConceptandCoding]

Thank you

[@alamgeer5507]

best video hai bhai solid ke liye

[@ConceptandCoding]

Thanks

[@bhartendukumar]

Simple, clear and crisp explanation and please also share a pdf notes of this playlist

[@Itsme1n1ly]

One recommendation from South, many don't understand Hindi. As i can understand hindi partially, i got to know how much valuable your content is. It would reach even south people, if the content is in English. I am able to understand easily. Whoever follows your video, i assure that they can clear many product based organisation especially PayPal. Kudos to you. Thanks

[@ConceptandCoding]

Yes buddy, that's why I switched to English for all latest videos and all covered some previous hindi video in English too.

[@Itsme1n1ly]

@@ConceptandCoding Great. Thanks bro 🙏

[@vineethkanaparthi785]

In the short microservices world where we use minimal interfaces how relevant are these principles? For example the dependency inversion principle says that classes should depend on interfaces, but if you take a basic spring rest api service, it will have a controller, a service and repository. Do you recommend implementing a service interface and then create a serviceimpl? It feels so unnecessary for a simple microservice that rarely changes.

[@shubhamagarwal1434]

very well explained...awsome!!!

[@an_uncommon_sense]

Nice explaination...Easy to understand 😇

[@ConceptandCoding]

thank you

[@shubhamchavan386]

nice work buddy

[@abhinavmishra9690]

Simple, clear and crisp explanation.

[@ConceptandCoding]

Thank you