Core Java with OCJP/SCJP: Multi Threading Part-6 || join() || sleep() || Thread Interruption

[@Noname-sn6ty]

It’s been 8 years since this was released and it’s been 4 years where I refer them still while preparing for interviews. What a gem of a person Durga sir Thanks a lot from the bottom of my heart

[@DurgaSoftwareSolutions]

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[@Rajahmundry-timepass]

he took so long time to explain a concept . but that concept will remind in our mind forever.

[@abhisheksaxena1839]

That's why he's perfectionist of JAVA

[@MrAshverma]

This is a strategy to push the concept into your long term memory. You have the option to increase the speed.

[@sairam8325]

Sir you are doing a lot of service to the society

[@lakshayv3272]

min 7 hours sleep is needed, now u wont see issues but in future you will face many health problems, so sleep atleast 7 hours, being successful is good but health is everything

[@ishagulati7237]

Java would have remained a PUZZLE(unsolved forever) for me if i had not found your java lectures sir... I am really very very thankful to you... Also your sense of humour makes it like cherry on cake... #Respect We will be obliged if you upload some lectures on advanced java as well...

[@shahubaibiradar3467]

One of the best teacher.. way of teaching with practical execution on social media free ofcost which help lots of students

[@DurgaSoftwareSolutions]

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[@saurabhdsawant]

after that sleeping story 28:42, my eyes were opened forever ! lol

[@liveonyoutube5487]

That's a bitter truth, after listening that I am wake up at morning 6am.

[@maobesoya7335]

Wonderful experience sir. Thanks from Colombia.

[@DurgaSoftwareSolutions]

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[@kirankulkarnikirankulkarni]

Hahahahah.... Snake example. You have some really good sense of humor

[@Dead_Zone_0922]

one of the most motivational video out of 203 (2-09-21)

[@DurgaSoftwareSolutions]

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[@parthjangid3587]

Sir your examples are epic😂, love all of them❤

[@DurgaSoftwareSolutions]

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[@vkj5742]

SIR, you are the best teacher I have ever had in java :). Sir,please make videos on advance java servlets.

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[@josephpudupermanil704]

Durga SIR. Your Very Very Very Great Teacher, The way of explanation and making understand such a diffeculty concept Threads like a very very very easily. Nobody in the world could explain in a very understandable way suck like very difficult concept Threads.

[@DurgaSoftwareSolutions]

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[@pralhadkale5784]

sir,Thanks for giving me a lesson of Bible..🙇‍♂️

[@bhavanikasiviswanathan3707]

Java means Durga. Duga means Java. Great tutorials Sir. Wish I could meet once.

[@menkagoswami7817]

hats off to your tutorial videos sir.... am understanding java just because of you...

[@DurgaSoftwareSolutions]

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[@sharma_anil]

sir u r simply amazing. I have a suggestion for you. Please expand your reach to the whole nation, advertise your channel. Make it big sir.

[@sandhya6356]

I enjoyed a lot through out the video😀

[@DurgaSoftwareSolutions]

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[@manrdful]

I just want to say big thanks for ur videos.

[@DurgaSoftwareSolutions]

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[@rajkoli8150]

Love u sir your a biggest hero in java

[@DurgaSoftwareSolutions]

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[@ritiksrivastava2154]

Your Teaching method is really superb

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[@basubasu7811]

DURGA you are my God..

[@parvatkhansole9016]

Thanks a lot sir ....... your videos clear my all doubts

[@DurgaSoftwareSolutions]

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[@sixface7841]

No one can beat durga❤

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[@madhusudhankamalapuram7608]

No words ........sir your teaching 🙏🙏🙏

[@DurgaSoftwareSolutions]

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[@manashranjan1267]

Thank's Sir ...........................Your Explanation is very Good

[@asrinivasareddy4066]

Analogies are super Superb one is that snake women comparison in a movie for interrupt function

[@funnyvideos-kd6vi]

love the way u relate things too real world example..love u sir..

[@03_afshanahmedkhan39]

So enjoyable and lovable class !!

[@DurgaSoftwareSolutions]

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[@Ahmadyousafzai2]

@Afshan Ahmed Khan Are these lectures are still beneficial? Because these lectures are 5 or 6 years old and there may be a lot of updates are done in java.

[@vamseeds0]

Comparision between Yield , Join ,Sleep @ 1:37:40

[@striverdaaadi]

Java means durga sir😍😍

[@DurgaSoftwareSolutions]

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[@prasadmahakal2361]

Thanks God Of Java

[@DurgaSoftwareSolutions]

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[@-AjayChauhan]

Completed this video too 30 April, 2024 Day 54 of #75daysofcode in Java

[@kavitayadav1323]

36:40 sleep()

[@EngineerVaibhav]

86th video completed🎉❤

[@thinksix1925]

Thanks for teaching sir 🙏

[@gourishankarpatra203]

Superb Explanation Sir...

[@hacking1007]

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

[@PandeyRavindra1]

awesome explanation sir great work..

[@preetraj6506]

You are a hero sir

[@DurgaSoftwareSolutions]

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[@nishchayupadhyay4535]

Love u ANNA And Thank u ANNA:))))))))))

[@omkarbartakke6253]

Sir your are great 👍, You can upload also Core Java Interview Question...

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[@rizwanshahid1447]

Thanks so much, Durga Sir.

[@manasranjanjena695]

Thanks for nice explanation. Kindly upload video of Wait(), Notify(), Notifyall().... by Durga Sir....

[@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]

[@manikantnigam31]

Very good video tutorial on multithreading...

[@ujjwalshrivastava4199]

comparision of yield join sleep method on 01:37:20

[@vicky271075]

Good. Bit long but worthwhile

[@rakhigandhi6802]

great explanation !!

[@DurgaSoftwareSolutions]

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[@rakhigandhi6802]

Subscribed.Glad to have found these videos! Want to check Collections too !!

[@utsavmodh9698]

🎉🎉🎉🎉thnx 🎉🎉🎉🎉

[@ayushipandey6924]

At 1:13:25 my answer is Thread will give left and right😂😂

[@prasannanivas4575]

🤣🤣🤣🤣🤣🤣

[@akshatahajare5014]

Hello sir, Could you please explain how come the thread object is available for the threadjoinDemo class. Thanks

[@saurabhdsawant]

he likes the word intimate :)

[@akshayrawat8847]

so, when u said t.interrupt got executed the flow of control went to child class. so my question is when you commented t.interrupt() , the i am lazy thread printed 10 times howcome its never went to main thread and printed end of main??

[@RiyazAhmed-ls2lm]

also it starts with executing child thread so prints "i am lazy thread" then then comes back to main and prints "end of main" , is that correct ?

[@vivekbudge9706]

Thank you so much sir :)

[@virajambole2950]

Sir or any respected can you tell me that ,in interrupt method example at 1:12:09 second ,how came first line "End of main thread" in output.............pls help me I not got it

[@DurgaSoftwareSolutions]

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

[@राजनगोंगल]

👍👍👍👍👍👍

[@amitasn1]

Hello Durga Software Solutions I have a doubt regarding Thread interruption of Child thread by Main Thread At 1:07:45 Shouldn't the output of program be:- I am Lazy Thread End of Main Thread I got interrupted Could you please explain step by step execution after t.start()

[@DurgaSoftwareSolutions]

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[@akware977]

Thank you sir.

[@sankalparora9374]

27:00 Sleeping is dangerous xD

[@aamirnaved4331]

All his life stories are linked with Java.

[@pankajvyas4531]

I was asked in interview that is it a good practices to keep sleep method in an if condition. Can you please help me understand what would be the effect?

[@DurgaSoftwareSolutions]

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[@bhuvanesheie]

Hello Sir, Can you please upload videos for Java design pattern as well ? Eagerly waiting for you Design Pattern Tutorials

[@DurgaSoftwareSolutions]

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[@unknownuser-wr3zm]

1:04:10 ... (jdk 14) even though the catch block executed, the "for" loop will continues its cinema!!!! y?

[@DurgaSoftwareSolutions]

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

[@kumararvindgupta2380]

Hello Sir If we can get Your lectures Of Design patterns then we will be very obliged.

[@DurgaSoftwareSolutions]

Hi Kumar, Design Patterns videos are not available with us. very soon we will upload, plz keep in touch on KZbin

[@prithvisahukar2270]

Durga Software Solutions Sir, please upload design pattern videos. I am really looking forward for them.

[@RohitJadhav-lk7bv]

Hi sir I have done lot of surfing on KZbin but there no any valuable video for design patterns. Please do it.

[@prachipandya129]

sir we are making mt in MyThread class as static .But if don't make it static then also program runs well. generally we can make property as static becoz all objects of same class can share it so here the same reason is applicable or there is some another reason for making mt property as static???

[@shambochoudhuri3039]

Here we make variable mt as static to assign that variable with main thread object from ThreadDemo1 class..And as we know that static variables can be accessed by its class name within a static method.

[@christylivefree]

A static variable is used where we want to use it without first creating an object of that class. Sharing of the same variable with all classes of the object is a side effect. If we reference a non static variable from a static method (say main), we will get a compile time error liek ThreadJoinMethod.java:19: error: non-static variable mt cannot be referenced from a static context MyThread.mt = Thread.currentThread(); ^ 1 error class MyThread extends Thread { Thread mt; public void run() { try { mt.join(); } catch (InterruptedException e) { e.printStackTrace(); } for(int i = 0; i < 10; i++) { System.out.println(i + ": Child Thread"); } } } public class ThreadJoinMethod { public static void main(String[] args) throws InterruptedException { MyThread.mt = Thread.currentThread(); MyThread t = new MyThread(); t.start(); for(int i = 0; i < 10; i++) { System.out.println(i + ": Main Thread"); t.sleep(2000); } } } I am not sure how you were able to run the code. Can you please share your code?

[@AnIndianify]

@@christylivefree Sharing of the same variable with all classes of the object is a side effect, Its not the side effect its the desired behavior that we want for that particular variable or method, and this case also we want all the child thread objects from the main class to share the same parent class thread object so it makes sense to create mt as a static variable. For your code to run first you will have to create an object MyThread t = new MyThread(); and then assign t.mt = Thread.currentThread();

[@farzanajutt8110]

Best best

[@DurgaSoftwareSolutions]

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[@amargupta1728]

At 1:25:00, which movie name you are discussing?

[@amargupta1728]

please share...

[@DurgaSoftwareSolutions]

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

[@SagarKumar-dy4wp]

Sir u told in the beginning that child thread doesnot have parent refrence by default...but there is a doubt by default child should have parent properties... Inheritance property

[@himanshughai3708]

is there a class for mainthread also which extends Thread class because in that case only upcasting can be performed?upcasting:-storing mainthread object RID in Thread class object.

[@amargupta1728]

At 1:24:12, We are not able to see the actual output of Interrupted exception

[@DurgaSoftwareSolutions]

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

[@safvanp1680]

👏

[@chessmaniac2136]

1:24:26 why end of main not printed

[@DurgaSoftwareSolutions]

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[@mrrawat215]

Sir if a thread interrupt another thread if a thread execute interrupted() method then why we are handling IE in sleep or join because there we won't call interrupted() method.

[@sanjaykumar-vx2eo]

throws InternetExplorer :D

[@deeproy7292]

is it really necessary to take the thread attribute as a static type in the MyThread class?

[@dagaprerna]

Thank you, Sir !

[@parasasreekanth7199]

sir u r so great plz upload remaning videous of MLT 10 to 13

[@krishgupta6554]

sir, i have a doubt about thread interruption...can the interrupt method be implicitly called during execution of program without calling it in main method....??????

[@suman5492]

Sir can you please explain the reason why the output is always like - End of main I am lazy thread I got interrupted in the program where you used the interrupt() method first time? I mean the output may be like - I am lazy thread I got interrupted End of main..... please help!

[@avinashmolleti8249]

Hi Suman, As Durga sir mentioned in this video, interrupt will be taken care by JVM and Main Thread will go forward with its process. Hope the answer helps you :)

[@vishalaggarwal1573]

suman try this one public static void main(String args[]) throws InterruptedException{ MyThread t = new MyThread(); t.start(); t.interrupt(); Thread.sleep(5000); System.out.println("main"); } } class MyThread extends Thread{ public void run(){ try{ System.out.println("child"); Thread.sleep(2000); } catch(InterruptedException e){ System.out.println("interrupt"); } } } so output may differ

[@christylivefree]

If you remember earlier classes, we know that there is no guarantee which thread the ThreadSchedular allots first. It can be either main or child. In this case it was allotted to main. I think there is a chance where you may see I am lazy thread I got interrupted End of main I ran it multiple times but couldn't see it. There is a slight chance it might happen.

[@harendrasinha373]

Hello Sir, Suppose a thread is calling yield method then is it possible that this thread can throw InterruptedException ?

[@akshaynerekar3514]

Can you please upload videos of Kotlin features? I am using it in my work and find some concepts difficult to understand

[@DurgaSoftwareSolutions]

Hello Captain Sparrow. For Kotlin Features videos, Plz contact our online team [e-mail] or call us on this number +918885252627,7207212427/28

[@sohilsodhiya5684]

interrupt method is final as well.You missed final keyword. "public final void interrupt()"

[@DurgaSoftwareSolutions]

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[@ishankgupta8560]

Why we called Thread.sleep() instead of Thread.currentThread().sleep() in main class is both method represent same thread object?

[@DurgaSoftwareSolutions]

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[@saeednazary3111]

EXELLENTT

[@DurgaSoftwareSolutions]

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[@AbhishekSharma-uh8pb]

what is the diff between sleep or wait sir ?

[@DurgaSoftwareSolutions]

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

[@UpendraSingh-qx5uh]

waiting is because of join() method and sleeping is because of sleep() method

[@gulshankumar1063]

is this video valid in 2020. or something change in jvm. that's why may be some other concept include in it. During Lockdown over country i saw your various videos it's really very good to understand the basic concept to high level. Thanku So much Sir. Some time you speak telgu it's not get... to me.

[@RohitGupta-kf6nf]

I have doubt here.. i saw in Oracle document. sleep(long milli) method is not native method... is Anyone notice it?

[@DurgaSoftwareSolutions]

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

[@Rkreddy123]

28:00,55:30

[@hungry_hyena]

Sir your videos are worth to watch. One candid suggestion I want to put here; you waste a lot of time over worthless stories and repeating a statement multiple time. You should focus on concepts only. It can save lot of time and students or experienced techies can learn more things from your videos.

[@codedigestwithmrwallet4768]

These videos are for classroom students uploaded over internet for info. And for classroom info its must to follow stories and anecdotes else students.sleep() will happen. And for repeating part i also was utterly annoyed even wrote a comment on inner c;lass tutorial but later reliazes he do that for class students to write notes. So for all youtube viewrs i say watch this at 1.5X speed and when he starts repeating forward by like 5min. And you are golden. :)

[@9985614083]

you are absolutely right. But I watch his videos on 1.75x or 2x. You can try once :)

[@zeusnn]

Are these same? Thread.getCurrentThread().join(1000) and Thread.sleep(1000)

[@DurgaSoftwareSolutions]

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[@ketulpatel1422]

Hello sir, How can interpret main Thread ?

[@DurgaSoftwareSolutions]

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[@ShubhamKumar-ej2oz]

whoever is handling the camera, please focus the camera on the screen from top to bottom and don't leave the bottom part of the output unseen

[@sheetaljain3569]

Sir, I am getting one error which is that Thread cannot be converted into MyThread sir in this it is not converting main thread into MyThread.

[@DurgaSoftwareSolutions]

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

[@poojithaku822]

I'm confused with which is child thread and main thread Mythread . Mt=thread.currentthread(); this is main thread know Thread.currntthread means main thread ... Soo will u pls help me??

[@DurgaSoftwareSolutions]

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

[@unknownuser-wr3zm]

public static void main (String [] arg) is main thread

[@sonamsingh719]

why output is like ?? End of main I am lazy thread I got interrupted

[@vishalaggarwal1573]

sonam try this one public static void main(String args[]) throws InterruptedException{ MyThread t = new MyThread(); t.start(); t.interrupt(); Thread.sleep(5000); System.out.println("main"); } } class MyThread extends Thread{ public void run(){ try{ System.out.println("child"); Thread.sleep(2000); } catch(InterruptedException e){ System.out.println("interrupt"); } } } so output may differ

[@christylivefree]

If you remember earlier classes, we know that there is no guarantee which thread the ThreadSchedular allots first. It can be either main or child. In this case it was allotted to main. I think there is a chance where you may see I am lazy thread I got interrupted End of main I ran it multiple times but couldn't see it. There is a slight chance it might happen.

[@swaroop6044]

@@christylivefree I tried it on Eclipse, had run more than 15 times and i encountered this output. i had the same doubt.

[@tadiyal04]

this code run main method first than child thread without using any static variable.

[@krishgupta6554]

because child thread is not yet started ..and we can't expect any output..you are calling join method before starting it..

[@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.

[@akashsrivastava8226]

Why another method is implemented in Java while first one is not ?? Kindly help !!

[@DurgaSoftwareSolutions]

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

[@jigneshkhunt1927]

pls upload more and more

[@rangaswamymaddileti9751]

54:55

[@shibadhamija4305]

sir , in the main thread statement s.o.pln("end of main thread never got printed ").....but why?? please help

[@deeproy7292]

it got printed...right at the first...play the video in 0.25x and see