Core Java with OCJP/SCJP: Multi Threading Part-9 || synchronized block

[@prakherjindal5440]

synchronized block concept - 04:00-08:20 (notes - 13:30-15:30) declaration of synchronized block - 21:00(check content of board) example of synchronized block - 36:35(check content of board), 41:30-47:00 synchronized block concept - 49:00-49:45, race condition - 55:19-56:25 lock concept - 01:05:15-01:07:30

[@srinivasseenu9642]

The way you tell real life stories and associate it with Java concepts is amazing. This making ease to understand the java concepts without ambiguity. 😊👍 These videos will never get old till Java is alive.

[@DurgaSoftwareSolutions]

Hello Seenu. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@ankitamall3132]

despite working in industry for so long,finally my thread concept cleared thank u durga sir❤️

[@ronaknayak7851]

Durga sir has made my life easy by uploading such a crucial videos..Thanks, DurgaSoft. Kindly, Upload rest videos on multi-threading front.

[@vamshikrishnaganapuram6381]

Thanks!

[@santhoshk1448]

durga sir=god of java

[@kirtirajput4569]

thanku so much sir for these valuable videos on multithreading....it is doing a great help.....

[@DurgaSoftwareSolutions]

Hello Kirti. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@kpgUser]

unforgettable ....life is synchronized now, true master.

[@DurgaSoftwareSolutions]

Hello Friend. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@makarandgaikwad7406]

Durga Sir, Can you provide reaming video on multithreading concept as well. Your style of explanation and your understanding towards concept is really fabulous.

[@DurgaSoftwareSolutions]

+Makarand Gaikwad Hello, We are very Happy to say Now you can access All DURGA Sir's Core Java with OCJP/SCJP Video Sessions. To get Maximum Benefit from these video sessions, compulsory you have to write notes also. Sir will dictate each and every point clearly. Demo Sessions on KZbin: 1. Language Fundamentals(16 Videos) kzbin.info/www/bejne/m4W7lWtvqZ2hnas 2. Operators &Assignments(7 Videos) kzbin.info/www/bejne/Z3uqgIOeft6bd68 3. Flow Control(6 Videos) kzbin.info/www/bejne/jmfVhGyseZ5gp68 4. Exception Handling (10 Videos) kzbin.info/aero/PLd3UqWTnYXOnSkaum39zWYI6bPb3i7liz Please give your valuable feedback and it is very important and helpful for us. Note:-If you are interested for full version of videos please revert back for more information. Fee : 6000/- Duration: 6-months DURGASOFT Online Training Team, Mobile : [phone] [phone] Mail ID : [e-mail] , [e-mail]

[@shubham7891]

Thanks a lot for such FAQ's , really summarised the whole concept and in nutshell, provided the clarity of concepts very well👌👌👌

[@DurgaSoftwareSolutions]

Hello Shubham. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@computing_T]

i don't know how to define you sir live long

[@sandhya6356]

It was very helpful for me..! Thank you sir 😊😊

[@samsherbudhaair969]

Finally new shirt. Love from Nepal

[@TheRebelMe]

Hi Sir, Firstly I want to thank you for your fabolous teaching approach. In an interview one question is asked about multithreading Question is Suppose we have three threads t1,t2 and t3. Wap so that t3 execute after completion of t1,t2.But t1 and t2 should execute simultaneously.

[@DurgaSoftwareSolutions]

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[@adityasinghania2504]

call t1.join();t2.join() as first line in t3's run method.

[@sanpanchapakesan7654]

Durga Sir Good Afternoon. Your comparative study of many concepts or methods with purpose is too good. When synchronized is taught, I think there can be a COMPARATIVE STUDY OF different synchronized styles, at method, at block, at class, and object can also be discussed... Thank you...

[@DurgaSoftwareSolutions]

Hello San. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@virendraaligave423]

thank you sir your teaching is awesome thank you so much sir please sir you also start for the machine learning and DSA in java courses . we are waiting.❤🙏💐

[@DurgaSoftwareSolutions]

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[@mak8823]

why it is allowed to use class level lock on synchronized block in non static methods? isn't class level lock is for only static methods?

[@ranveervaghela7030]

Completed watching on 30-06-2024 at 10.08 PM :)

[@राजनगोंगल]

👍👍👍👍👍👍

[@palashchauhan9927]

👌

[@GopalSharmaCS]

Durga Sir, I love your Video lectures specially this multi-Threading videos. with so ease you discuss the topic is outstanding. But in these series where are the videos from part 10-13. I can see only till 9 and lecture no 14. Please provide them also Cheers,

[@CHIRANJEEVIM77]

excellent lecture

[@DurgaSoftwareSolutions]

Hello Chiranjeevi. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@rakeshsahoo2509]

god bless you sir

[@shahzaiblashari7250]

just superb love from pakistan

[@thinksix1925]

Thanks for teaching sir 🙏

[@Dyslexic_Neuron]

great analogies sir ! respect

[@DurgaSoftwareSolutions]

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[@debjyotibhattacharjee685]

Very nice sir ... u r great

[@DurgaSoftwareSolutions]

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[@enjoyeating629]

Best example for synchronized block is tolgate .in tolagate one Vehicle can check.until tolagate number vehcles can overtake each other ,after tolgate also. In tolgate vehcles have to move one by one

[@abhishekbhayal3129]

20:03 i could not understood inside synchronized block .class level lock Sir please clear this doubt

[@DurgaSoftwareSolutions]

Hello Abhishek. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@saddamahmad2310]

Thank You so much sir for giving these videos

[@DurgaSoftwareSolutions]

Hello Saddam Ahmad. Thanks for your valuable feedback.It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@rizwanshahid1447]

Thanks so much, Durga Sir.

[@hacking1007]

sir your explation is asomee i i like it sir please more upload video of graphics user interface in java please sir

[@rohithguptathodupunuri7303]

How many watching with 1.25x speed

[@rups_kitchen_01]

1.5x

[@nareshkatukojwala3692]

Requesting you to please let me know the best book for java learning complete program.

[@DurgaSoftwareSolutions]

Hello Naresh. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@vivekbudge9706]

Thank you so much :)

[@RoshanAlte]

1:01:05 In previous lecture you told normal methods can be accessed by n no. of threads but sync method only accessed by one thread. But you told normal method are not accessed by the another thread.

[@DurgaSoftwareSolutions]

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[@priyadt1]

hello sir, I have one doubt, can we add synchronized(this) inside run() in thread class?.

[@DurgaSoftwareSolutions]

Hello Priyad. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@mahboobali5886]

Hello Sir, You are great and Your way of teaching is very good. In synchronized block first program only display "Good Morning" twenty times, name is not display (like Dhoni and Yuvraj) can u tell me why?

[@DurgaSoftwareSolutions]

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[@ywrtech705]

Hi Sir, At 1:08:32, I think synchronizing on a local instance will not work here coz every thread object will have own copy of that method. Please correct me if i am wrong. And thanks alot for teaching us.😊

[@DurgaSoftwareSolutions]

Hello Ywr Tech. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@ultimatewarriorfrieza275]

In case of multiple objects, why is there an irregular output? Is it because we are working on only one System.out object?

[@DurgaSoftwareSolutions]

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[@safdarakrami3764]

It would be great if remaining videos are also available for learning.

[@DurgaSoftwareSolutions]

Hello, We are very Happy to say Now you can access All DURGA Sir's Core Java with OCJP/SCJP Video Sessions(200 Videos,21 Chapters,200 hours ). To get Maximum Benefit from these video sessions, compulsory you have to write notes also. Sir will dictate each and every point clearly. Demo Sessions on KZbin: 1.LanguageFundamentals(16Videos) kzbin.info/www/bejne/m4W7lWtvqZ2hnas 2.Operators&Assignments(7Videos) kzbin.info/www/bejne/Z3uqgIOeft6bd68 3.FlowControl(6Videos) kzbin.info/www/bejne/jmfVhGyseZ6kgw 4.ExceptionHandling(10Videos) kzbin.info/aero/PLd3UqWTnYXOnSkaum39zWYI6bPb3i7liz Please give your valuable feedback and it is very important and helpful for us. Note:-If you are interested for full version of videos please revert back for more information. Fee : 6000/- Duration: 6-months DURGASOFT Online Training Team, Mobile : [phone] Mail ID : [e-mail] , [e-mail]

[@bhuneshwarsingh630]

Sir You are Really Great can you please upload Some Missing videos so we can get better Understanding on that Wait() and InterThread Communication is Missing Sir videos from part 10-13 are Missing Please Upload, We love U sir Thanks for Uploading Videos

[@coding-with-namrata]

Thanks a lot, sir

[@safdarakrami3764]

Dear Sir, Is there any tutorial for learning struts 2 with videos.

[@jigneshkhunt1927]

wow

[@srikanthr5935]

Hi Durga Sir, I could not find 10,11,12,13 sessions of multi threading concept pf your OCJP tutorial can you please upload it. Thanks in Advance.

[@prasadpalla1483]

I Have a question on the last topic ?? Is a thread can acquire multiple locks simultaneously ?? For this, you have taken one example... You have already used a synchronized keyword in m1() method...But again you used Synchronized (y) and Synchronized (z) ... What is the necessity of using so many times... If the main method is having the Synchronized method then it is applicable to all child methods, right ? can you please explain about it ??

[@DurgaSoftwareSolutions]

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[@sanpanchapakesan7654]

Mr Prasad, Yes when method is sync its applicable to the entire code in it,...... but does the code acquire the lock of objects of Y and Z also? No. The pseudo sample shown by Durga Sir is to possibly show yes, an object can acquire more than one lock and it wont show any error....If a thread acquire locks of many objects....it may possibly lead to cascading effects (like Oracle-PLSQL triggers)... and JVM may blink its eys...

[@DeepakKumar-um5kj]

Need to change the example. and explain from different example. All covered in a single example.

[@renukabarvhan5709]

Sir i have an consern about the example when we create two object of display class we don't need not to surround the for loop inside the synchronized block So we also get regular object. So why we need to surrounded for loop inside synchronized block Plz must reply sir thankyou.

[@DurgaSoftwareSolutions]

Hello Renuka. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@vaibhavvyavahare]

Sir please upload Spring tutulorial.

[@DurgaSoftwareSolutions]

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[@PANKAJSINGH-lv7iu]

Sir could you please tutorial for design patterns in java

[@DurgaSoftwareSolutions]

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[@lafhangaladka2119]

If method is declared as synchronized then what is the need of synchronized block inside it

[@DurgaSoftwareSolutions]

Hello Lafhanga Ladka. Plz contact our online team [e-mail] or call us on this number [phone], 7207212427/28

[@sanasyogesh1]

Cause more and more threads can execute nonsynchronize part and your performance would be increased. It is recommended keep minimum part in synchronize block or method so response time or waiting time can be reduced.

[@charurathi927]

sir plz upload ur videos in advance java sir

[@prabhudeepsingh4236]

To get all the programs of Multi Threading give a star to the following repository: github.com/PrabhudeepSingh/Java-07-MultiThreading Follow github.com/PrabhudeepSingh for more such code.

[@prathapkoushic4005]

sir teaching is super but too much lag

[@ushahande5851]

Please add videos for part 9 to part 13. They are missing

[@damodharareddy417]

+usha hande hi mam u got the multithreading videos from 10 to 13 plz tell me dont ignore me

[@zoranristov7349]

Why would you use synchronized methods/blocks inside synchronized methods? If one method is synchronized, wouldn't everything in it be synchronized as well?

[@vishalpanwar9550]

Here is a real world scenario which will help you understand.Suppose someone got fracture in his fingers/finger.Which is the better way to handle it ?Put a plaster on his complete hand or just put a plaster on his fingers/finger. In the same way if a method contains 100 lines of code out of which only few line of code is critical ,then its better to go for synchronized block rather than synchronized method.

[@ankitsharma8221]

Yes, everything inside a synchronized block is synchronized but what he said was, for a Thread to attain different locks we can define several synchronized blocks inside a synchronized method.

[@zoranristov7349]

01:05:15 there is a synchronized method m1, and then 2 synchronized blocks of code in it. If he wrote it just for the purpose of explaining that a thread can acquire multiple locks at the same time, it's ok, altho it's kind of a bad example if you ask me cause I don't see why you would use synchronized code inside synchronized code, because if a thread has the lock of the m1 method, no other thread can get the lock of m1, let alone get locks of the blocks of code inside that method. You get what I mean?

[@vishalpanwar9550]

Let assume m1() has 1000 lines of code ,out of which 999 code performing the read operation(assuming) and one line is performing the write operation on a shared resource. Then what will be your approach ,to synchronize the whole method or just make the synchronized block and put that one line operation in it?

[@ankitsharma8221]

you are not getting the question @vishalpanwar

[@shruthisjarali]

"Y and Z" class is not there why r u creating its instance " y and z" in 1:07:10.....plz explain

[@PraveenRanjan123]

It is just an example... Sir is trying to explain whether a Thread can acquire multiple locks or not and the answer is Yes. So suppose there is already class Y and Z.

[@shruthisjarali]

oh k...tysm

[@Hari-fd4yv]

This is december 2024 this viedos age is 9 years still not get old no compitison for MR.Durga Sir . no one will suppose to come, if any one one have guts , see all viedos and detailing , subject only will give LEFT AND RIGHT

[@DurgaSoftwareSolutions]

Hello Hari. Thanks for your valuable feedback. It will boost us to do new things. Please subscribe to get updates about new videos. You can view all other Core Java with SCJP/OCJP Videos by Durga sir in the following link: goo.gl/kqvaf2

[@manojkumarjena7563]

Hello sir , I saw this video completely and I have a question that is: Can a constructor can be synchronized or not and if not why? please make a video on this and please notify Thank you..

[@DurgaSoftwareSolutions]

Hello Manoj. Plz contact our online team [e-mail] or call us on this number +918885252627,7207212427/28

[@manojkumarjena7563]

Ok sir. Thank you.

[@manojkumarjena7563]

Sir, I mailed on this email but didn't get any reply. please sir help me on this topic. thank you.

[@COMPUTERWallahCoding]

There are no bomb blasts now a days, as govt head is a true Patriot person.