Spring Tutorial 01 - Understanding Dependency Injection

In this tutorial, we'll understand the concept of Dependency Injection.

[sachinpandey]

Two things which really means a lot
1:- Main goal of Spring framework is how to decouple relationship between dependent Object
2:- Dependency Injection means separate the class which is dependent and inject them when its needed from outside.

Perfect :) Thank you very much @kaushik

[TheFlyguy]

Probably one of the best tutorials on Dependency Injection on Youtube..

[melvinkimathi]

9 years old, but still relevant...Thank you sir

[koryroman]

This is the first Dependency Injection tutorial that actually makes sense, thank you.

[ginopeduto]

I am really impressed! These videos are high quality in every aspekt -
good didactics, clear accentfree voice, pleasant degree of difficulty,
to name a few. Thx a lot!!!

[x]

14 minutes of this man's explanation is far superior than hours of dry academic explanation at a university.

[aces]

this is undoubtedly the clearest explanation on dependency injection on YouTube god bless your kind intelligent soul

[Abdullahkhan-kspy]

Your way of explaining things is really awesome and the way you slowly but steadily approach the problem is good. I appreciate your good work.

[hoanghailethe]

you deserve to be called the BEST JAVA TEACHER on youtube if not in the world! Thank you very much for making my learning much easier

[vivekgopalakrishnan]

why cant people be simple and straight forward like you. Good Teaching, Thank you very much.

[sandeepsahani]

Beautifully explained. Cheers!
When a learner comes across the terms like - Dependency Injection, it feels like only Newton can understand this :) .
This video made it a lot simpler :)

[lootster]

00:04 Dependency Injection decouples conventional dependency relationships between objects
01:58 Implementing polymorphism through interfaces and inheritance.
03:55 Implementing polymorphism in Java
05:49 Implementing Dependency Injection for Shape Drawing
07:38 Implementing Dependency Injection in Java
09:36 Dependency from a specific shape is removed
11:21 Understanding Dependency Injection in shapes and drawing
13:05 Understanding Dependency Injection in Spring

[Qraven]

Thank you so much, you are the only person who have finally explained this to me!

[conworldus]

I have read two books on Springs and did not understand it at all. After watching your tutorial, it is crystal clear now how spring works. Thank you, much. You are outstanding.

[gopikrishna]

I'm very fortunate to stumble upon your spring tutorials. Your way of teaching is really impressive. The entire course is well organized. I think your videos are helping many people to start learning programming!.

[AmitSingh-vflf]

Best explanation in the internet, had gone through Pluralsight course as well but even that didn’t clear the concept but Kaushik is great teacher!

[vijaykumarreddyalavala]

For the first time in my life I have properly understood what polymorphism is. Thank you

[visnubalajis]

I really want to thank you for this tutorial....been 10 years but also this video gave me clear explanation after searching for a long time from another mate once again

[ameeqhs]

Thank you! It is the best tutorial I found about the dependency injection.

[vasantpatil]

Very simple explanation. Everyone can understand DI after watching this video .