Java Multithreading Interview Questions

Java Multithreading Interview Questions and Answers ► SUBSCRIBE & LIKE!!

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[pankajdubey]

The thread stack also contains all local variables for each method being executed (all methods on the call stack). A thread can only access it's own thread stack. Local variables created by a thread are invisible to all other threads than the thread who created it. Even if two threads are executing the exact same code, the two threads will still create the local variables of that code in each their own thread stack. Thus, each thread has its own version of each local variable.

All local variables of primitive types (boolean,  byte,  short,  char,  int,  long, float,  double) are fully stored on the thread stack and are thus not visible to other threads. One thread may pass a copy of a pritimive variable to another thread, but it cannot share the primitive local variable itself.

[rkgoli]

good job man. nice brief summarisation and good articulation than lot of other multithreading videos, which are either too verbose, or too slow, or too digressing with not-that-straight examples, or not articulated well enough. Thanks a lot!! for the free service.

[sivaramasubramanian]

Wow..Amazing Tutorial..Clear, covers a lot yet concise enough!

[shantipriya]

The canteen has two windows for rice. (window 1 and window 2), each window has a master to provide meal service, and the window service time is as follows. Master a of window 1 is preferred to start the service. After cooking for three students, open window 2 and master B of window 2 starts the service. The total number of students is 30. Please describe the code implementation with multithreading mechanism.
who can solve it?

[annukumari-vsse]

Asynchronous execution mechanism is defined wrong in the yellow highlighted box as it’s not capable of running in background but asynchronous means not waiting for the other thread to complete and execute simultaneously.

[meetshah]

Great Content, Can say that this video cleared my all doubts and all topics are clear now.

[aquasaiyan]

great video. if i'm not mistaken, Future object would be derived from callable instead of runnable

[jackcoolguy]

I think your last example explanation is not correct. Thread.wait() is not used when you want to wait the completion of that thread but you use it on any object (not only thread) whose lock thread needs to give up so that other thread can lock it and then again acquire it back to complete the rest of the part.

If you want to continue execution of thread after completion of other thread, then you need to use join() on that thread

[arvindraju]

Where we can find your generics exercises code which you mentioned in Video? on GIT HUB?

[prasadrayudu]

Really Helpful video Sir, Thank You :)

[SS-orom]

Where we can find these documents? Please share the link.

[csabadanyiko]

"Threads allow java code to run in parallel". That is not true. Parallelism is not guaranteed in java multithreading. Only concurrency.

[vikrantdheer]

Where we can find your multithreading & generics exercises code ?

[moksudahmed]

Why the Thread that will provide us the bowling statistics is called "battingThread2" ? Shouldn't we call it "bowlingThread"?

[dhrub]

Very well explained in detail. Where can I get the source code?

[hit_nishant]

What if we will commented out the notify() from the Calculator class ?

[neerajarora]

The last example the wait and notify are called by locking on different object.. not a good practice as you may miss a signal !!

Also in the last example you could have simply used join. Not an amazing example to show wait and notify ...

[murtuzalaxmidhar]

Very short explanations with no significant terminologies used. Its okay to keep it brief but should highlight important aspects else it not much of a use. Felt same with Design Pattern videos.

[pankajdubey]

how two thread can override the method argument value, every thread have own stack and method argument and local variable is maintained in the stack, can you please provide example and demonstrate, two thread can overide the local variable and share in between

[pulpopulpo]

Where can we donwload a complete pdf or ppt file with all the explanations of each question?