❌ A. Counter value: 20000 ✅ B. Counter value: Less than 20000 ❌ C. Counter value: More than 20000 ❌ D. Compilation error ❌ E. Runtime error ❌ F. None of the above
Explanation: This code snippet demonstrates a scenario where two threads (t1 and t2) increment a shared static variable counter. Each thread iterates 10000 times and increments the counter.
Due to the concurrent nature of multithreading, the increment operation (counter++) is not atomic. It consists of reading the current value of counter, adding 1 to it, and then writing the new value back. This introduces a race condition.
It's possible that while one thread is performing the read-modify-write operation, the other thread may perform a similar operation concurrently, causing the updates to overlap and potentially leading to lost updates.
The correct answer is option B) Counter value: Less than 20000. The exact output value can vary due to the race condition. The threads might interfere with each other's updates, causing some increments to be lost. Therefore, the output value will likely be less than 20000.
In a multithreaded scenario like this, proper synchronization mechanisms (e.g., synchronized keyword or AtomicInteger) should be used to ensure the correct behavior of shared variables.
❌ A. Counter value: 20000 ✅ B. Counter value: Less than 20000 ❌ C. Counter value: More than 20000 ❌ D. Compilation error ❌ E. Runtime error ❌ F. None of the above
Explanation: This code snippet demonstrates a scenario where two threads (t1 and t2) increment a shared static variable counter. Each thread iterates 10000 times and increments the counter.
Due to the concurrent nature of multithreading, the increment operation (counter++) is not atomic. It consists of reading the current value of counter, adding 1 to it, and then writing the new value back. This introduces a race condition.
It's possible that while one thread is performing the read-modify-write operation, the other thread may perform a similar operation concurrently, causing the updates to overlap and potentially leading to lost updates.
The correct answer is option B) Counter value: Less than 20000. The exact output value can vary due to the race condition. The threads might interfere with each other's updates, causing some increments to be lost. Therefore, the output value will likely be less than 20000.
In a multithreaded scenario like this, proper synchronization mechanisms (e.g., synchronized keyword or AtomicInteger) should be used to ensure the correct behavior of shared variables.
BY Explanations “Top Java Quiz Questions”
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You can’t. What you can do, though, is use WhatsApp’s and Telegram’s web platforms to transfer stickers. It’s easy, but might take a while.Open WhatsApp in your browser, find a sticker you like in a chat, and right-click on it to save it as an image. The file won’t be a picture, though—it’s a webpage and will have a .webp extension. Don’t be scared, this is the way. Repeat this step to save as many stickers as you want.Then, open Telegram in your browser and go into your Saved messages chat. Just as you’d share a file with a friend, click the Share file button on the bottom left of the chat window (it looks like a dog-eared paper), and select the .webp files you downloaded. Click Open and you’ll see your stickers in your Saved messages chat. This is now your sticker depository. To use them, forward them as you would a message from one chat to the other: by clicking or long-pressing on the sticker, and then choosing Forward.
How To Find Channels On Telegram?
There are multiple ways you can search for Telegram channels. One of the methods is really logical and you should all know it by now. We’re talking about using Telegram’s native search option. Make sure to download Telegram from the official website or update it to the latest version, using this link. Once you’ve installed Telegram, you can simply open the app and use the search bar. Tap on the magnifier icon and search for a channel that might interest you (e.g. Marvel comics). Even though this is the easiest method for searching Telegram channels, it isn’t the best one. This method is limited because it shows you only a couple of results per search.
