Online Free Tutorials Guruji Guide & Materials – Solved Questions Answers
I have a legacy class which I would like to consume in a more convenient way. class Camera { void RequestCapture(); public delegate void ReadResultEventHandler(ControllerProxy sender, …
I’m currently diving into multithreading but i have some problemn understanding what i’m currently doing wrong in my code. Im trying to fill 2 lists with random data by calling my “…
I have to call an external HTTP API that only allows one request every 4 seconds by userId. As long as I’m calling this API sending a different userId each time, I can call it at any rate. In this …
I’m writing some code to simulate CAS(compare and swap). Here I have a method cas to simulate CAS instruction, a method increase to plus field count 1. And I start 2 threads that every thread add …
I wonder whether it’s possible reliably to prove that double checked locking is broken: public static Singleton getInstanceDC() { if (_instance == null) { // Single Checked …
I have a scenario where I have to poll a remote server checking if a task has completed. Once it has, I make a different call to retrieve the result. I originally figured I should use a …
I’m fooling around with Java threads and I wrote this little program that creates several threads and runs them. In each thread a value is incremented multiple times. I used ThreadLocal class so that …
I have a utility class that has one static method to modify values of the input Array List. This static method is invoked by a caller. The caller is used to process web service requests. For each …
Like, the title says. Can I change the inner structure of objects in a HashTable while iterating over its keys? I know I cant change the Map itself, or at least that it is risky to do so, but despite …
Imagine the following example: An application starts two threads. The Provider class holds the concurrent collection and writes data to it. The Consumer reads data from the collection. Is the …