Association(HAS-A) Aggregation And Composition in Java [MOST COMMONLY ASKED INTERVIEW QUESTION]

[@Landon_Hughes]

I had a hard time understanding this before watching this video. Now I understand. Thank you!!

[@CodeDecode]

M glad 👍

[@thakrenikhil]

@@CodeDecode i agreed with Landon, now its very clear for me as well

[@sohilusmani8276]

Mam composition ka ek example run karake dikha dijiye

[@kids-plays]

Example wise, if composition is there, you can declare part-of variable like engine as private final so that it has to be initialize to exist the car or initialize Car instance.

[@wi8shad0w]

sorry to be pedantic . The Code shown is just wrong. In aggregation, the parent class is not responsible for its creation and will have its own life cycle . The code shown here for aggregation exhibits composition. for Aggregation if its unclear how to do it , The other objects are injected during construction and its also rightly called as dependency injection and only by that design aggregation can be acheived.

[@amulyal5561]

Pretty Straight forward and catchy explanation:) Thank you

[@CodeDecode]

Thanks 👍

[@charan_75]

Simple and to the point, thanks for the explanation.

[@CodeDecode]

Thanks Charan 👍🙂

[@prateeksahu6332]

Really practical and crystal clear explanation

[@CodeDecode]

Thanks .......

[@juanestebanparraparra6302]

Neatly explained!

[@CodeDecode]

Thanks 🙂👍

[@stephanesonkeng4569]

Hello thanks for the video, looking at the code only, how can you differentiate between aggregation and composition?

[@marcosdiasdev]

In composition the "parts" objects are created and deleted by their "owner". For example, you can have Order and OrderItem. In Order constructor you can instantiate your OrderItems. If the Order is destroyed then you must have a method for destroying OrderItems too.

[@thegeographicalterm5974]

Thank you very much this clarify my problems.

[@CodeDecode]

You are welcome!

[@chetankhandave]

Once again, very nice video, but I have one question. If there is part of relation between car and engine, so engine is tightly coupled with car. Does it mean engine's life cycle is completely depending on car? If engine's life cycle is depends on car, then there should not be getter method for engine, because if we provide getter method for engine then engine will be available outside class car also, then how can engine's life cycle depends on class Car. Please clear my doubt.

[@seenuiglesias4035]

Simple and Best explanation..... I expect more from you about Core Java not only that do the videos on microservices, webservices also

[@CodeDecode]

Don't worry I have a plan for J2EE, Spring, Hibernate, JPA, micro services, rest full web services, and even react and machine learning too. But it will take some time as i am a developer in an MNC. I need some time to shoot these videos but i have a plan to do so in near future.

[@usamaansari7903]

@@CodeDecode yes mam do that but first clear all core java concepts all small small things to big big things and plzz plzzz also make a playlist of SWING AWT javafx and applets separates plzzz and then only switch to J2EE u r explanation is wonderful and very clear so that's y I am expecting from u tysm☺

[@SunilKumar-on1iq]

👏👏👏👏👏👏

[@sudiptanandi2011]

An association is known as Aggregation when one object uses another object. Is it Correct?

[@ironone4438]

Not exactly, because you can have a composite association where an object of a class uses another object from another class

[@ZeeshankhanKhan-b1r]

Watching before one day from exame

[@CodeDecode]

All the very best

[@saundaryasrivastava8638]

thanks alot mam for revising these concepts

[@CodeDecode]

🙂🙂

[@navneettripathi2110]

Comparable and comparator Tutorial please...with live example

[@usamaansari7903]

@@CodeDecode no mam u go step by step take u r time but make a video step by step after oops concepts u can make arrays videos and them collection

[@CodeDecode]

Don't worry guys i will cover most of the basics of Java including oops, arrays n comparable and comparator everything in this month only

[@dheebanm3207]

Very useful mam,thank you

[@CodeDecode]

Thanks 👍👍

[@shravanthsrinivas8700]

I followed most of your videos, but somehow missed this one, and this was exactly asked today for me in Oracle, couldn't answer it properly 😢

[@CodeDecode]

No worries Shravanth few questions unanswered are completely fine in interviews. Target answering 80 percent and that will be enough for clearing the round🙂👍 all the very best mAn. U will do great. Keep learning keep shining 🌟🌟

[@shravanthsrinivas8700]

@@CodeDecode thanks a lot ❤️

[@RAMCHARAN-by2oq]

mam pls explain with programetically, bcz interviewer need this. thank you

[@CodeDecode]

Sure Ram 👍👍

[@rudraninoothi609]

Nice explanation mam

[@CodeDecode]

Thanks 🙂🙂🙂

[@dimashtef7077]

I've understood the topic even in spite of your Hindu english, great explanation

[@CodeDecode]

Thanks 😊

[@sohilusmani8276]

Mam composition ka ek example run karake dikha dijiye

[@rickqin8624]

Great work!

[@CodeDecode]

Thanks 👍

[@RAJ-wx7cr]

Awesome explanation mam

[@CodeDecode]

Thanks:)

[@Mewari_Rana]

samaj hi nhi aaya kuch

[@srimanjivlogs3803]

worthy ❤️

[@CodeDecode]

Thanks

[@umadevi11112]

Thanks alot ❤️

[@CodeDecode]

You are welcome Uma........

[@pankajchandel1000]

Where is the code?

[@rafidhassanrisun5341]

balle balle

[@CodeDecode]

🙂👍

[@zarintasnimela138]

Shava shava

[@pavankumar-vg8ev]

Association(HAS-A) Aggregation And Composition in Java madam pls give me code link

[@tanishkavaswani3360]

thankyou :)

[@CodeDecode]

🙂🙂👍👍

[@jaserq]

the relationsihip between me and my car is composition !!!!

[@CodeDecode]

🤣

[@rubbish9231]

🤨🧐🧐 but here engine can exist without car.

[@CodeDecode]

Yeah engine you can get in market in real world analogy

[@Querty43098]

But what if it is not used in any car so it's useless that's why both needed each other to be complete

[@dotnetdevyt]

But not useful

[@games4fun584]

but this concept mostly use in android programing

[@Harlogs]

Areyyy yarrr nothing nothing nothing………Your video is nothing but full of nothing😂

[@ZeeshankhanKhan-b1r]

Watching before one day from exame