All Questions
11 questions
5
votes
2
answers
643
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
2
votes
2
answers
146
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
7
votes
2
answers
1k
views
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
6
votes
2
answers
272
views
Data analysis program for job interview
Before the interview for the Junior (i hope:)) position of Java developer, I was asked to do a test task. Kindly ask you to review my code. Riht now program arguments are hardcoded and not from args[],...
2
votes
1
answer
1k
views
Modelling a Call Center in Java (multithreading approach)
I wanted to give a shot to Modelling a Call Center from Cracking the Coding Interview. The problem statement is as follows:
You have a call center with three levels of employees: Respondent, Manager,...
- 1,557
1
vote
1
answer
3k
views
Print odd and even numbers using two threads in Java
I was asked below question in an interview where I need to print out even and odd numbers using two threads so I came up with below code one without synchronization and other with synchronization.
<...
- 499
3
votes
1
answer
666
views
Thread-safe arraylist with get, put, add, remove functions
I am preparing for multithreading interview questions and I don't have much experience with multithreading. I referred some online article to come up with a solution. Is this solution appropriate?
<...
- 31
6
votes
1
answer
3k
views
Task scheduler coding exercise
In an interview about multithreading I was asked to write code to satisfy the requirements below:
In the exercise you need to provide implementation of single-threaded TaskScheduler class with the ...
- 287
6
votes
3
answers
22k
views
Client Sends XML, Server Parses XML, Queues Up and Executes Commands
I recently had a Java interview where I was asked to write a client-server application. I don't code primarily in Java, but with my preliminary Java knowledge, I thought I built a reasonable working ...
- 161
36
votes
2
answers
6k
views
Asynchronous network callback code
I did not get the job after submitting this piece of work in an interview, but I have no feedback to know what "BAD" things are inside this block of code.
The requirements are:
Connect to the ...
- 491
2
votes
5
answers
2k
views
Bounded blocking queue
Can someone please review this code for me? I have not implemented all the methods for simplicity.
...
- 343