Core Java with OCJP/SCJP: Multi Threading Part-3 || The ways of defining a Thread Part-2

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7 years till date I swear no channel can beat this content

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[@abthakur3709]

Legend always be a legend

[@kashifstudent2791]

@@abthakur3709 I agree

[@satyanarayanmohapatra7616]

Though having 4yrs professional experience in MNC, I was never clear in Multi thraeding concept. But sir you just nailed it. I will be completing all multi threading videos. Keep up the good work sir.

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Hlo satya narayan sir , i am fresher in the field of it as java developer and i have almost complete my training can you tell me how we can get a job

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​@@lekkalanarayana182dm me

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Sir, you are the best JAVA teacher on KZbin till this date...

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[@programmer649]

If every college has teachers like you then in INDIA 80% of engineers are not gonna be useless sir great explanation sir

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king of java , called durga sir. clarity, knowledge, myaan of great grace . lots of respect, love . I will refer this to everyone willing to learn java................

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[@CodeByOm]

I never saw a teacher like you. Thank you sir for valuable content ❤❤❤.

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[@DurgeshKumar-qy5hn]

Sir, you are the best Java teacher I have ever come across! Your knowledge and expertise in the subject are unparalleled. I have huge respect for you!

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I think all teachers should take a lesson from him ...how to teach by durga sir

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Best Teacher for JAVA In the World

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[@dilipnayak5478]

Deep and simple explanation. The best content ever seen in java. Sir please upload every computer science topic in this channel.

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[@VishalSharma-rn7mt]

You are the greatest teacher sir, your explanation is wonderful, even paid course don't provide like this explanation.

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8 years ago he was so advanced in teaching java, still no one can teach like this

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[@abhishekanand5631]

there can not be a better java teacher than you sir!! huge respect for you.

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[@prakherjindal5440]

defining thread using Runnable interface - 02:20-03:05, 07:15-12:05 Runnable interface vs Thread class - 34:15-37:15 Thread name - 01:02:30-01:04:30, 01:15:00-01:15:30

[@JayaPrakash-q8m]

Tqsm brother.

[@dheerajscorefitness6981]

Teachers should learn to teach from Durga Sir. I adore you Sir. 🙂

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[@pradeepkumar-lb1ym]

Great class by durga sir on multithreading runnable method and thread class constructors

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[@srikantakumargouda9561]

Waaaw..yar ...so simply he is explaining the concept 😌😌😌😌💓

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[@shubhendrasingh9921]

Hatts off to you sir You are the Rajnikant of Java🙏

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[@Varsha123Varsha]

I didn't understand thread class constructors at all.. All other things I understood, he's a good teacher

[@abhih4405]

Old is Gold. Thankyou Durga sir. You are my inspiration.🥰🥰🥰🥰

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[@vivekvd4276]

Sir it will be very helpful if notes are also provided

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[@hailedebela9528]

your are excellent teacher!!!!!!! thank for uploading such attractive video tutorials

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[@vinodluhar4505]

BEST FACULTY FOR JAVA ...HATS OFF SIR :)

[@ruthikkumardepp6702]

Thank you sir for you huge respect on your way of style teaching 😘😍 Durga's sir Our's java Monster

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The way you are explaining is too good... Addicted to your classes .. I don't think java is easy till your videos watched ..

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Top quality content thanks for your generosity

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[@gchennak]

Great explanation with clear examples.

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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]

[@pankaj4109]

its not durga's approch to define a thread but durga sir's approch . got it

[@arunupadhyay1566]

He is knowledgeable person ... Great job sir.

[@10055Linda]

Fantastic Durga Sir! Love your teaching!!!

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[@ruthikkumardepp6702]

You're god of Multi Threading

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[@madhusudhankamalapuram7608]

Awesome sir.......your explanation 🙏🙏🙏🙏

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[@sanpanchapakesan7654]

The 9 cases after creating a thread extending Thread.....Excellent Durga Sir....

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[@3004atul]

Good tutorial by providing complex feature in easy way

[@half_demon1466]

In program explanation at 1:05:00; I did not understand how by simply calling MyThread class a new thread is created? We have not called Start() method of Thread class yet, so the new thread should not be created. Please suggest.

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[@N3r0ify]

He extended Thread class so when he created new MyThread object the constructor of Thread class is also executed and there the name of the Thread was set to Thread-0. This doesn't create a new thread, but the Thread object only. Hope this helps.

[@half_demon1466]

@@N3r0ify got ur point thanks

[@sowmiampolu]

But he did not call the thread constructor that has name argument explicitly. I did not get the point here. Untill and unless thread created how can it will be named as thread-0?

[@sikendrasrivastava5891]

THANKS A LOT SIR FOR SUCH AN AWESOME VEDIO ,THE WAY U EXPLAIN THE CONCEPT IS CRYSTAL CLEAR.

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[@sushantgupta2756]

Can you please upload design patterns by durga sir???

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[@javawidhitesh]

Java King At Ameerpet❤

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[@renjithr7676]

Thanks a lot Durga sir, I am a great fan of you, your teaching is awesome. In getting and setting name of a thread there is no need to have MyThread class, we can simply create a thread and using Thread class and rename it.

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[@renjithr7676]

You are welcome!!. For around last one month I am working hard to learn Java and I have been experienced lot of videos. Your classes are excellent , like your depth of knowledge and your sessions always cover core concept, corner cases and interview preparation also . Now I am focusing your vide only. Videos are long as you are taking time for note preparation also. I play in speed 2 to make time efficient. Please clarify me the video ( goo.gl/kqvaf2 ) which you shred covers complete Core Java concepts right

[@vivekbudge9706]

Thank you so much sir. It is very helpful. Lot of respect.

[@meena7222]

Sir, you are a hero, why Pavan Kalyan?

[@gowthamchavva2062]

Sir are you pwankalyan fan?I am following your videos.Very understanding and removes fear in java.

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[@thinksix1925]

🙏 thanks for teaching sir

[@sureshsangwa8403]

Hats off 🎉

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[@EngineerVaibhav]

83th video completed🎉

[@averma4493]

Thankyou thankyou thankyou ❤

[@balajirajan9141]

I like the lifecycle of a child to a doctor.🤣🤣🤣😪

[@jayant2716]

Sir without calling start() method how a new thread was created @58:32. I'm li'll bit confuse !!!

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[@vedantsingh7011]

There is a default constructor in Mythread which will be called at a time of object creation of Mythread.In default construction there will be super(), which will call the default constructor of thread which will make the thread.And start is responsible execution of thread. if you have seen constructor videos of durga sir,it will clear this doubt. Hope u got your answer. just have a look of thread class documentation for more clarity. docs.oracle.com/javase/7/docs/api/java/lang/Thread.html

[@jayant2716]

@@vedantsingh7011 thanks brother

[@TejasIndulkar]

Durga sir is our India's James Gosling _/\_

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[@vamseeds0]

31:15 Why Should we Go for Creating Runnable Thread

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[@mohanrammanikandan7939]

@Vamsee Krishna. Although we can extend "Thread" class for defining a thread, implementing "Runnable" is best approach. Because we can get some inheritance benefits that we can also extend a class while implementing Runnable. Moreover, performance is also good here by doing this.

[@sandhya6356]

Sir, good morning..! i want to ask that where did you get such an amazing knowledge of java. 🙏

[@srinidhim1708]

God of java😍😍😘

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[@itsmylife69]

Sir .... really nice .... lecture and very interesting ..................... hahaha ..................... I also renamed my thread to "Pawan Kalyan" and my program is running very fast now ............... just kidding sir, you are awesome ,

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[@monabbar007]

I think the API to reply comment would have been devloped by durga sir.

[@leedashing]

sir please upload the videos od OOPs concept i will be thankful to you.

[@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]

[@राजनगोंगल]

👍👍👍👍👍👍

[@chandanmohanty1863]

It seems "Pawan Kalyan" inspired his style from "Durga Sir"... :)

[@greeshmarepaka7548]

Hi sir, Excellent teaching.. Can you please tell what does light weight thread mean.

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[@DIVVELASUMANTH14]

Can you please upload design patterns by Durga sir if you have any..

[@DurgaSoftwareSolutions]

Hi Sumanth design patterns videos shoot not done.. very soon will upload.. plz keep following us on You Tube.

[@prtknelge5]

is design pattern videos are available?

[@muttuyangi8801]

in durga's approach, is 3 threads are created or 2 threads created?

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[@cameracoverage3837]

Please teach us Java Android

[@ChandaKumari-el9px]

Please sir can u upload about call by value n call by reference

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[@neshakkumar]

getName() can't be used if we use runnable to define a thread?

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[@iamdivyaprakash]

always say"legend"

[@harshabc4445]

sir can i have the notes of complete core java and advance java ?

[@DurgaSoftwareSolutions]

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[@emmanuelkaku6797]

excellent videos... can you upload something of server client socket in java

[@MohitSharma-zz7kt]

sir when we write MyThread t=new MyThread();-a new thread is created or not just executing this statement only,bcz if i excute t.getName()-it gives thread-0,this means while creating the object of child class a new thread is created?

[@DurgaSoftwareSolutions]

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[@digjeetkaur9519]

sir can u upload pattern call by value , call by reference in java

[@DurgaSoftwareSolutions]

hi, Digjeet we will update in coming days

[@rizwanshahid1447]

Thanks so much, Durga Sir.

[@MANOJNAIDU1]

can you please upload design patterns by durga sir???

[@asodirajashekarreddy6439]

Durga sir is thop If any one say he is not thop I willl give left and right

[@azimrahman3584]

Sir is it complete lecture of thread cycle?

[@DurgaSoftwareSolutions]

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[@soumyajitbanerjee1440]

Do, Class Myrunnable extends. Thread implements Runnable, will work??

[@DurgaSoftwareSolutions]

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[@raviranjanjha3677]

sir when compilation is done if any error occur then how compiler understand that the error occur due to that symbol error..please tell me sir

[@DurgaSoftwareSolutions]

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[@raviranjanjha3677]

@@DurgaSoftwareSolutions good evening sir, I contact but unable reach.. So I have delivered message on your watsapp

[@ashishmahanta7963]

Sir Your advanced Java pdf is enough for interview??

[@DurgaSoftwareSolutions]

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[@pranithad1462]

how does start() method of thread class call run() method of child class when it extends thread class?

[@DurgaSoftwareSolutions]

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[@anand6909]

Because of polymorphism..child class method will be overriden by parent class..

[@sandeepe5989]

Sir, do main thread extends any class , if so is it Thread class or Runnable interface...

[@its_rk2448]

It is actually Runnable interface as Thread class implemented Runnable.. Run() came from Runnable only🎉

[@mohdsazidhusain2138]

great sir very very thanks,,,,,,,,,,,,,,,,,,,,,,,,,,

[@DurgaSoftwareSolutions]

+Mohd Sazid Husain 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]

[@-AjayChauhan]

Completed this video too 27 April, 2024 Day 51 of #75daysofcode in Java

[@deardeva9268]

is available pdf for this Session??

[@DurgaSoftwareSolutions]

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

[@Yalla_Balaji]

Durga sir boss.

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[@manoharsinghraghuwanshi2183]

Please anybody help me to clear this doubt. if we create the instance as follows MyRunnable r = new MyRunnable(); Thread t1 = new Thread(); Thread t2 = new Thread(); then by calling t1.run() method there is no new Thread is created but by calling t1.getName it will be going to give the name Thread-0, why we got this name as Thread is not created yet (i didn't call start method on same thread instance)

[@chaudhrykhan8282]

You have instantiated two different threads so their lifecycle have started as new. U have access to all of the methods which are defined in Thread class. When u create a new Thread object, it internally sets its name so when you call get method it returns the name of thread. Remember thread is in new state not in runnable state. It will only step into runnable state if you call start method of thread class. I hope it clarifies

[@nilashishchakraborty3983]

Exactly.

[@sandeepe5989]

Thread instantiation is not the same as thread creation. Thread creation happens inside a start() method which has lengthy lines of code.

[@ShubhamSoni-cr2ex]

public class Thread extends Object implements Runnable

[@ashokkumaar2005]

Hi anyone can please tell what is his name? I would like to take java training with him. when I contact durgasoft, telling 3 or 4 names. I dont know his name

[@DurgaSoftwareSolutions]

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[@techWithShubh1998]

You are god sir

[@DurgaSoftwareSolutions]

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[@amitmapari393]

Durga sir if Runable is recomnded to create thread then why java provide provide Thread class???????????????????

[@daniels5675]

we use Thread class to instantiate the thread itself. We always create a new instance of thread from Thread class, not from Runnable interface. Runnable is a interface, meaning we cannot make a new instance of it. To make a new instance of that interface we need to implement that interface somewhere. In this case, the implementation is on Thread class. So, the method run() in the Thread class, is actually comes from Runnable interface. Because of that Runnable implementation on Thread class, we can make a new thread by extending from Thread class itself, aside from just implementing Runnable interface. But as Mr.Durga said, it is always recommended to use the 2nd approach (implements Runnable) for the benefits we gain from it.

[@user-0987-a]

thank you very much!!!!

[@neerajarath2760]

hi sir,Did not get why we cannot extend any other class after extending thread class

[@gokulvlb]

Because Java doesn't provide multiple inheritance of classes

[@surendramishra4813]

yes Java doesn't support multiple inheritance. If a class A already extends any other class B then we can't extends class C or Thread class otherwise compiler will give left and right, that's why Runnable Interface comes in picture

[@pushparay5554]

Sir how can we create thread for child thread?

[@GauravKawatrakir]

I am looking for Map collection video....

[@wasiimo]

In the collections playlist.

[@r.o.jvlogs1985]

bt map is not available in that playlist

[@manishkhande6747]

here we call Start method and method get call run? how? pls anyone explain

[@DurgaSoftwareSolutions]

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

[@mrhunter6891]

plz help me understand in last two lectures we learn that "Thread" Class has start() methods and it implements runnable interface, But an implementation class cant have any methods other than the methods of its interface, This proves Runnable has start method which durga sir clearly said is not the case? Please help me and EXplain

[@chaudhrykhan8282]

Runnable interface has only one method known as run(). So Thread class implements Runnable therfore Thread class internally has run method since it implements Runnable. Runnable class does not define start method so u cant override start method. However, when u create class implementing Runnable, you are required to implement run method, no need of start since it is not defined in Runnable interface. Then you pass runnable class to Thread constructor and Thread will be used to call start method since Thread is the only class which has start method in it. Therefore, Runnable interface does not define start method. start method has its own implementation only in Thread class. I hope it cleard out ur confusion

[@sandeepe5989]

an implementation class need not implement only all the interface methods, but it can also add additional methods which are not there in interface. So Runnable interface which has only run() method is implemented by Thread class. The thread class not only have ONLY run() method but also have various other methods such as getName(), setName()....etc.

[@mourya1429]

when we are extending Thread class only 1 object for thread class is created but if we implement runnable interface we need to create 2 objects which is a memory wastage So can we Say if we want to utilize memory then only we need to extend Thread class? and also how can we say by implementing Runnable interface memory utilization is good?

[@ArunKumarKarepu]

Let's say you have MyRunnable class implementing Runnable interface having 10000 lines of code in its run method and you want to run this class using 10 threads simultaneously. For this you have to create only one MyRunnable object and 10 threads and have to pass same MyRunnable object to every thread. But if you extend Thread class then you have to put 10000 lines of code in MyThread class and you have to instantiate this MyThread class 10 times which requires more memory than previous one because the class containing 10000 lines of code will have to be instantiated every time.

[@jvsnyc]

@@ArunKumarKarepu Your answer may be a little misleading. Whether you have zero, ten, or ten million instances of a class, there is only one copy of each of its methods, static or not. Now, it might be that there are a lot of data members of MyRunnable, and it might be okay for all the threads to share them, in which case you would still save something. But it also might not be safe for each of the threads to share the same Runnable, or at least not without a lot of synchronization, which we haven't seen yet by this video.

[@ArunKumarKarepu]

@@jvsnyc When you say all instances refer to only one copy of method. Can you explain me how methods will use variables something like "this.x" which is inside one method and if 4 objects access this method at same time? It's better if you can share references as I looked on the web but I couldn't find anything that mentioned all objects refer to only one copy of method. www.geeksforgeeks.org/static-methods-vs-instance-methods-java/

[@jvsnyc]

@@ArunKumarKarepu I don't immediately have a reference that is not from a book. Essentially, each instance method, whether we are talking about Java, c++ or c#, at least, probably more, received a hidden first parameter which points to its copy of the instance variables for that type of object. In Java that will ALWAYS be on the heap, c# and c++ are more complex and flexible. Now you often don't say this.member explicitly, unless you are say in a setter like: Void setVal(int.value) { this.value = value; } However you are normally using it implicitly every single time any code reads or writes any of its instance variables. So if you have 2 million instances of a class, you still have just one single copy of the code for each. To spoil this 'magic' read anything about the 'this pointer' in Java. C# and c++ are similar but more complex, as not all objects must live on the heap in those. So, there is only ever one copy of the code, no matter how many objects there are at some time. The thin wires you don't see that makes it look like you are flying in the movie, which gets passed into every single instance method call without you seeing it, is that this pointer to your variables only.

[@ArunKumarKarepu]

@@jvsnyc Thanks. I got the reference to what you mentioned. JVM maintains method code in separate data area called "Method Area" and this memory is shared among all threads. docs.oracle.com/javase/specs/jvms/se7/html/jvms-2.html#jvms-2.5.4

[@ShravanKumar-et3go]

i am getting an error while passing myrunnble to thread class object can anybody please explain. package com.runnable.java; public class Thread { public static void main(String[] args) { MyRunnable runnable = new MyRunnable(); Thread thread = new Thread(runnable); } }

[@NareshKumar-wz8tm]

i guess change the name of the class from Thread to different name

[@komalsingla6032]

I have watched your videos. They are simply amazing. But, sir, I have a doubt in the following program , please help me out. Runnable r=new Runnable() { public void run() { System.out.print("DBS"); } }; Thread t=new Thread(r) { public void run() { System.out.print("ASIA"); } }; t.start();

[@DurgaSoftwareSolutions]

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

[@ironhide9955]

is this a proper program? if not can you post your full code??

[@UshaL]

@@ironhide9955 you cant create object for Runnable interface

[@ironhide9955]

@@UshaL you can create object for runnable interface or any interface via anonymous inner class concept . please check this article www.geeksforgeeks.org/anonymous-inner-class-java/

[@gpavankumar1639]

without t.start() how can it be thread 0

[@DurgaSoftwareSolutions]

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

[@praweenkumar9886]

run is a complete method in itself and it has nothing in it, we have already seen it in the last lecture . my question is Runnable is an Interface class so it must contain only abstract methods whereas it has only one method run() viz is complete in itself, how come this possible.....??

[@daniels5675]

on your other comments, u might mean implementing runnable interface. And we are always using the run() method in Thread start() method run() method is always empty, and always force us to override it. And for Thread class, it need to be a class for it to be able to create a new instance. Because of that, it need to be able to someway override the run() method it get from Runnable interface. But to give run() method a implementation doesn't bring any benefit at all, it will specified by the programmer later. That's why it stays empty.

[@chettiannanannan1486]

Will anyone pls explain how Thread.currentThread().getName() works?

[@DurgaSoftwareSolutions]

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

[@shehapeldien7025]

in class Thread there is static method called "currentThread()" this method return object of Thread, and Thread has method called "getName()" it return name of this thread.

[@BeingShrikant17]

should i prefer these Muiti threading videos ? , because these are 6 years old and may be now many new concepts are introduced by JAVA.

[@DurgaSoftwareSolutions]

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

[@bhaveshgujarathi926]

Thank you sir..

[@be_humble]

Can anybody please explain this: .....since runnnable interface contains only run().. when we call the start(), how it gets executed to schedule the thread?

[@sumitjha392]

The start() method of Thread class is executed to schedule the thread since you are passing the object of the class that implements interface to Thread constructor. MyRunnable r = new MyRunnable(); Thread t = new Thread(r); t.start(); //the start() method is invoked on Thread object (so start() of Thread will be executed where the thread will be registered in the scheduler)

[@mrhunter6891]

plz help me understand in last two lectures we learn that "Thread" Class has start() methods and it implements runnable interface, But an implementation class cant have any methods other than the methods of its interface, This proves Runnable has start method which durga sir clearly said is not the case? Please help me and EXplain

[@sing.bhanu_]

hi @mr hunter, an implementation class is required to implement all methods of the interface but an implementation class can have its own methods too.

[@nilashishchakraborty3983]

An implementation class(both abstract and concrete) can have methods other than the ones that are there in the interface that it implements.