Java CLASS, OBJECT, HEAP Memory and Class Variable Types. Object Oriented Java Tutorial #9.1

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Java Tutorial for CLASS, OBJECTS, HEAP MEMORY, VARIABLE TYPES and how REFERENCE variable or INSTANCE variable works in terms of Heap memory and Stack Memory. Watch the next video for the demo code explanation.
Source code files: bit.ly/2MC04SR
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--- Thank you for your love and support ---

[@Jandroraya]

had a bunch of "oh damn ok that's easier than I thought" moments. Thanks man

[@Invento_Boost]

All day i was studying these concepts and finally got the perfect video on it. Thanks a lot!

[@MD-py2de]

The best straightforward and simple java course I have ever seen, Thank you.

[@asbkochiadmin9064]

You explains it so well....The concepts that I found hard to understand are explained so well in your tutorial that now I feel its so simple...Thanks a lot...

[@thestarinthesky_]

The best explanations ever! It was very helpful. Thank you.

[@pristine_the_tech_guy]

Perfectly explained.. You're amazing sir.

[@sangeetakumar3857]

Finally, I found videos that explain the concept very well ! Thanks a lot !! I have seen so many Java tutorial videos but my understanding is so much better after watching your videos. The good visual explanation is what sets your videos apart from the others . It is sooo easy to get the concepts by looking at the visuals !!!

[@jeerawanpk]

Wow, I felt exactly the same thing. I searched a lot of video just to get this kind of explanation.

[@starriet]

newbies can be confused at 6:11, usually when you say 'instance variables', it indicates the variables in the instance, such as 'breed', 'age', 'color' in the example. To be precise, those non-static fields are 'instance variables', and static fields are 'class variables'.

[@rockmusicvideoreviewer896]

I agree with you.

[@user-vb5di5np9e]

great , the best and clearest video ever .

[@mohammadfarhan6940]

Jai ho Aapki😃😃😃 You have cleared all my doubts, thanks for the explanation

[@jeerawanpk]

Wow, thank you so much. Very clear explanation.

[@75STARFISH]

This is super helpful. Thank you so much!

[@shiVam01242]

Thankyou ... Beautifully explained

[@kmtk82]

amazing, thank you!

[@cablemaster8874]

Thanks for your teaching method

[@muditkushwaha6176]

Very nice video bro..good job..my concept got cleared..

[@nima7605]

Your tutorials are awesome. Keep it up

[@aksanoramos2898]

You are the best, well done.

[@sridevi-jp3ic]

Nice video ! Thanks a lot !

[@gamersoul1098]

great explanation tnxxxxxx

[@vijaygurusamy4055]

Good explanation

[@koshykoshy9276]

very good explanation.

[@chayae3740]

Thanks a lot

[@makikiplays4173]

NICEE, THANKYOU

[@uttammewara7380]

WAS REALLY GOOD VIDEO !!

[@xxxx-kv9ei]

"instance" is a word used for dungeons in games, which are accessed through a portal and takes you to another locations. It means a method which is accessible somewhere else

[@rockmusicvideoreviewer896]

wrong

[@bijimoljoseph6313]

Thank you

[@srinikaganegoda6967]

good lesson sir

[@h3w45]

Thank you.

[@SmartProgramming]

very helpful tutorial, keep it up sir 👍👍👍👍🙂🙂🙂🙂

[@smartherd]

thanks a lot

[@muditkushwaha6176]

Keep going like this..

[@ajithk2183]

Thank uuuuu....so much

[@ZiadddTV]

perfect explanation!

[@smartherd]

Thanks

[@JAYESHSHEWALE]

Very nicely explained...subscribed

[@smartherd]

Thanks

[@SeniorGeneralOmega]

Happious code doesn't come aroudn as objects without space : but in time with 0 functions 0^0 in object in a line can resend information with emails then a computer gets jerked a system running a across a main waiting for a main signal 0 : 1 ) .

[@mayankchauhan9867]

sir I have prblm that i understood your concept very well but i DON't KNOW HOW TO PRACTICE .PLEASE HELP ME SIR ..

[@RaghusEntertainment]

bark() and run() will throw error as the "local variables" are not initialized.

[@satyamkumarmal7783]

You are following head first java book I think so !!!

[@user-yk2qr6zw7m]

How is the memory (stack and heap) look like if I have array of object? Example: Person [] people = new Person[10]; people[0] = new Person(); people[1] = new Person(); where Person class has 2 instance variables name and age?

[@dprashanth5279]

Underrated channel in KZbin Your video are awesome😍😍😍😍😍

[@rushabhoswal8280]

Objects are stored in heap by default? Is their any way to store object in somewhere else?If object are stored,they will consume memory, so how to clean that memory?

[@smartherd]

+Rushabh Oswal well you don't have to clean memory. Once the reference variable pointing to that object becomes null then the object becomes useless.. So here comes the garbage collector that automatically cleans up the objects and increase the heap memory back.

[@rushabhoswal8280]

Smartherd , how to store object into some other location?

[@smartherd]

+Rushabh Oswal objects are always stored in heap memory. There is one more memory area known as stack memory where the primitive data type and reference variables are stored. I will make a separate video on heap memory, stack memory and garbage collector.

[@altinuku6766]

Hi, congrats to your video. I think that you can makeit better after minute 10:38 when you say that dog2 and dog3 has the same age. It is incorrect cause you before , correctly says that they are simply pointers to the object D2. It is much better to not speak about dog2 and dog3 has the same age, but this two different pointers cause they point to th same object , every modification of the variables of the object D2 will be visible for both pointers. I think that all this confusion comes when in java they teach to us : We create and object using Dog dog2 = new Dog(); without explainis clearly every piece of this point. 1 ) it is an expression. ( expressions can have different forms ) 2 ) The evaluation of this expression start from right to left to be excetuted. 3 ) new Dog() creates a new object in HEAP (our object D2 and our object has a memory address ) 4 ) Dog dog2 define a object reference. 5 ) the simbol = assign the memory address of the object to our object reference. [ if we try to do a System.out.println(dog2) we will have the memory address stamped. ] 6 ) if we wont to access to every variable of our object ( D2 ) we can do it simply calling the object reference and the name of the variable that we want to access. example dog2.age So , as last i want just to remember that dog2 and dog3 are not our object but just our OBJECT REFERENCE. Object is all the structure and Object Reference is simply the address memory of our object.

[@amlam5685]

hi Altin Uku what is the point of having these 2 object references dog2 and dog 3 ? am new on programmig

[@altinuku6766]

​@@amlam5685 watch this video: kzbin.info/www/bejne/i5SzpoqPZdyhadk When you program sometimes you are costraint to to have two or more object references to the same object in memory. You should always pay attention when you modify values cause if you modify a variable value of the object from one of the refecence object it will be visible for all the reference objects that point to this object. One case is when you need to have access ( just to read the data of the same object in different point of the program.

[@mercy2655]

He is speaking in English and why i feel like he is teaching in hindi.

[@smartherd]

Because u r able to understand my English 🤣

[@mercy2655]

@@smartherd Sir your explanations are directly getting into my head.Thank you Sir.

[@hirakain5006]

What is requirement of Dummy Variable??? Dog dog4;

[@akshayak.b8722]

Amazing explanation