All Questions
Tagged with java multithreading
456 questions
0
votes
0
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57
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Wait for results/failure of an unreliable async operation
Abstract Problem
The basic problem is that of producer/consumer. Wait for an async Producer to [produce an item] or [fail], together with a timeout on the consumer side.
Using Java's ...
- 101
4
votes
3
answers
162
views
Threads in Java with ExecutorService
I'm experimenting with Threads in Java and came upon the ExecutorService class.
I've written the following code:
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- 617
2
votes
1
answer
79
views
Multithreaded Merge Sort Using ForkJoin Framework
I've implemented a multithreaded merge sort using Java's ForkJoin framework, and I wanted to gather feedback on its correctness, efficiency, and scalability.
Here's my implementation:
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- 21
5
votes
2
answers
617
views
Thread-safe write-efficient register() method for a Load balancer
The code below was written for an interview question of designing a load balancer with only a register() method.
...
- 313
3
votes
1
answer
123
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Amount Transfer Between Different Accounts - Improved Version
This is an improved code version for Amount Transfer Between Different Accounts
Welcoming any further improvements for this.
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- 297
4
votes
1
answer
216
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Amount Transfer Between Different Accounts
I implemented the below classes for transfer amount between different accounts. Used ConcurrentHashMap and Stamped Lock to handle concurrency.
Am I missing any important concepts here? Are there any ...
- 297
6
votes
2
answers
876
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Reduce String Length With Thread Safety & Concurrency
I implemented the below URL Shortener class. Used ConcurrentHashMap to handle concurrency.
Short URL building logic may not be optimal, but it ensures that only ...
- 297
5
votes
2
answers
465
views
Implement service registry servers with load balancing strategies
Have Implemented below service registry class with 2 load balancing strategies.Used Strategy Pattern. Used Stamped lock ( Optimistic write locking) for ensuring thread safety and concurrency. Used ...
- 297
1
vote
0
answers
51
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Java multithreading with Spring JPA
I have to improve a process that is currently sequential, and i wanna make it multi-thread.
This process uses Spring JPA, with spring boot 2 and java 17.
I would like to have a feedback on the ...
- 111
2
votes
2
answers
129
views
A thread-safe performant Money Transfer API in Java
This is a popular interview question. It is meant to be done within 30 minutes. The task is to implement a thread-safe performant Bank Account API that allows to transfer, deposit, withdraw and check ...
- 343
4
votes
1
answer
102
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Multithreaded Alpha-beta pruning for playing Connect Four in Java
Intro
(The entire repository is in GitHub.)
This time, I have parallelized the famous Alpha-beta pruning algorithm. The idea is that the parallel algorithm descends in a game tree (at least) 2 levels ...
- 30.2k
7
votes
2
answers
1k
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A thread-safe performant URL Shortener in Java
This is a popular interview question. It is meant to be done within 45 minutes. The task is to implement a thread-safe performant in-memory URL Shortener.
My implementation is based on two maps that ...
- 343
5
votes
3
answers
113
views
Time based cache for single element
The container should be thread safe and provide lazy load of data, and cache the data for set period of time.
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- 151
2
votes
2
answers
142
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Multiple Producer and Multiple Consumer Implementation Using Locks and Semaphore
This solution has a total of four classes.
Main.java: Class with main method. Execution starts here.
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- 121
0
votes
1
answer
105
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decorator for an Executor that allows to get a List of running tasks
As stated in the javadoc below, this is intended for monitoring and debugging. I've found it especially useful for figuring out which tasks got stuck and prevented clean terminations of my ...
- 379