I am very excited to announce that the first
#JavaChallengers
book version is released! There are more than 70 Java Code Challenges to help improve your
#Java
skills!
#JavaChallengers
You can get the book right away:
To be an incredible
#Java
developer, we must go beyond
#Java
. We need to know how to build scalable systems. In this New Article, learn the fundamentals of
#cache
!
Also, we need to pass the
#SystemsDesignInterview
. 🤣
Learn more about
#cache
here:
Quick
#Java
tip: Mocking several chained objects on
#Junit
is a pain. We can mock everything at once as the following:
Service service = Mockito.mock(Service.class, Mockito.RETURNS_DEEP_STUBS);
when(service.getSomething().getSomethingElse()).thenReturn(mock(AnyClass.class));
To become a fantastic
#Java
developer, we must go beyond Java. We need to master what makes a great software design.
Also, we need to pass on Systems Design interviews 😂 . Therefore, master what is Latency and Throughput:
Whenever I see a
#Java
developer working very hard and earning too little, I realize they don't know how to be visible in the market and grow their careers strategically.
Become a high-paid
#Java
developer and take your career to the next level!
#java
#javacareer
#coding
The only way to be really good in any skill is by practicing it and understanding deep concepts!
#JavaChallengesVideos
Watch the new
@Java
challenge video:
Hey
#Java
developers! What concurrent class do you use the most in your day-to-day work project? Have you ever used Thread, ForkJoinPool, CyclicBarrier, locks, volatile or CompletableFuture?
What is the concurrent class you use the most in your day-to-day work?
What are the 11 Mistakes Java Developers make when Using Exceptions?
#JavaChallengers
Check out this article and find out if you making one of those mistakes:
Have a deeper understanding about
#Java
memory management! 🧠 Take this Java Challenge with me about Garbage Collector. Determine how many objects are set for collection post executeAction(). Think you've cracked it? 🔗
#MemoryMastery
#javachallengers
Hey
@Java
developers! Take this
#JavaQuiz
about the ThreadLocal class and learn how to store data in different Threads.
#JavaDevGym
Try it out now *The attached image is from the previous quiz*:
One of the most powerful ways to make
@Java
developers write better code is by understanding deeply concepts from the
@java
language. By taking the
#JavaQuizzes
you will be mastering core
#Java
concepts.
#JavaDevGym
Take the quiz now:
To be an excellent
#Java
developer, we must go beyond
#Java
.
We always use hashing with the
#hashCode
method and load balancers...
Learn more about hashing in the following link and be prepared for the
#SystemsDesignInterview
:
Polymorphism is a fundamental Java concept we use frequently. Even if it's not always obvious, it plays a vital role when working with data structures like ArrayLists. Test it in the Hidden Dracula Polymorphism
#JavaChallenge
!
#JavaProgramming
The process of
#serialization
is to transform an Object into a Byte stream. Learn about the process of serialization and how it transforms an Object. Take a
#JavaChallenger
quick test about Serializable Object Java Challenge.
🔗
#Java
#Softwareengineer
Hi
@Java
developers! I decided to find out what are your biggest challenges at this moment in your career so I can work on what you can do to solve your problem. Keeping up with tech? Stressful projects? Bad managers? Short deadlines? What is your pain?
You can also send me DM!
In the world of software development, performance is king! 🏁 Say goodbye to memory waste caused by redundant object creation. 🧠💡
Discover how this pattern can be your secret weapon in boosting efficiency and enhancing your Java programming. 📚💻
🔗
Boost your Java skills with the Neo Stream Search Challenge! Explore the mechanics of the Predicate functional interface of a Stream and master key methods for stream processing. Let's get started!
#Java
#JavaChallenge
#NeoStream
Hi
@Java
developers! Do you know when to use TreeSet, HashSet, ArrayList and so on? This
#JavaChallenger
introduces this content!
#JavaChallengers
Learn how to sort elements of an array easily with
@Java
:
Hi
@Java
developers! Today is the last day to take this
#JavaChallenger
! Can you get it right?
#JavaDevGym
Go to the link below *The attached image is from the previous quiz*:
To be a fantastic
#Java
developer, it's a fact that we must go beyond
#Java
. We need to know how to design scalable cloud systems.
#LoadBalancer
is a crucial component for that.
Therefore, master the principle of Microservices in the following article:
To be a fantastic
#Java
developer, knowing how to build
#scalable
systems is necessary. It's necessary to go beyond
#Java
.
We also need to pass in the
#SystemsDesignInterview
. Learn the principles of a forward and reverse proxy:
Hey
#Java
developer! Take your career to the next level by going beyond your technical skills. Learn those key negotiation techniques to boost your salary and take your career to the next level:
#javacareer
#careergrowth
#developer
#career
In this article, I’ll introduce you to some of the most common threading problems, and show how to solve them. I will discuss different types of threads, how they differ from locking mechanisms and when you should use them.
Read more: 👀
#javachallenge
Hey
#Java
Developer! Are you feeling the impostor syndrome, tired of working with outdated technologies, or want to boost your
#Java
career and spend more time with your family?
#codingcareer
Get registered in the following link for the LIVE Masterclass:
Become a better
#Java
developer by understanding small differences between lambdas and method references by trying out the following
#Java
code challenge:
Did you know that the String
@Java
class uses the
#Flyweight
pattern in the String poll?
Once you master
#DesignPatterns
your code analysis skill improve dramatically.
Improve your
@Java
skills:
The new
#JavaChallenge
explanation is just launched! Now you will be understanding what is the answer from the previous
@java
quiz by watching this video!
#JavaChallengesVideos
It's much easier to understand the concepts by watching the video:
Unlock stream manipulation and data filtering for more efficient Java code. Master data limitation and filtering with streams. Join the Java Challenge now!
#Java
#JavaChallenge
#LimitStream
Hello
@Java
developers! The new
#JavaChallengers
about inheritance is launched! Go deep into this concept and learn when to use inheritance or composition!
#JavaChallengers
Check it out:
Want to learn Java?
But with so much to learn, knowing where to focus can be daunting. Join us as we learn the essential topics every aspiring software engineer should prioritize for a solid foundation. 📚
🔗:
#Java
#SoftwareEngineering
#LearnJava
Learning how to work effectively with microservices is a big challenge. The complexity goes up high.
Therefore, I gathered the technologies you should know what they do to get around with Microservices:
Hey
#Java
developers! I am writing the
#Streams
chapter on the
#JavaChallengers
book. And, I would like to add real-world examples in this chapter. Therefore, can you share the
#Streams
code you mostly use in your day-to-day work?
Improve your Java skills with the Simpson Equals HashCode Challenge! Master the vital equals and hashCode methods essential for object comparison in Java. Elevate your understanding!
#Java
#JavaChallenge
#Simpson
Hi
@Java
developers! It's been some time there is no
#JavaChallenges
but this happened for a good reason.
The new series
#JavaChallengers
was launched today in
#JavaWorld
!
Master the challenges concepts and be a highly skilled
@Java
developer:
What is the
#Java
framework/stack/specification you are currently using at the company you work for?
Vote and RT this tweet so we can understand better the
#Java
market. :)
Lambdas are powerful and helps a lot to create concise and clean code.
Mastering them is very important so that you can easily make use of them. Try out this
#Java
code challenge and be a step closer to master lambdas:
Functional interfaces elevate
#functions
to first-class citizens in
#Java
, opening new doors for cleaner and more efficient
#code
. 💻
Understand the nuances of Functional Programming using lambdas and functional interfaces. Read more 🔗
Quarkus is THE game-changer in enterprise
#programming
.💥 With its supersonic speed and subatomic capabilities, you can whip up ultra-fast Serverless applications like never before! 🚀
Dive into our latest article
#Quarkus
#MongoDB
#Microservices
#Java
🎧 Listening to podcasts is a fantastic way to broaden our horizons and grow. In this article, we'll delve into insightful discussions about Java, mindset, and beyond.
Discover more at
#Podcasts
#Learning
#Java
#Mindset
#Tech
[NEW] Big O notation will be asked in the vast majority of coding interviews.
If you don't know or want to refresh your knowledge about big O notation, take a look at the following article:
Hi
@Java
developers! The new
#JavaQuiz
is launched in
#OracleDevGym
! It's about Exception, can you get it right?
#JavaDevGym
Try it out now *The attached image is from the previous quiz*:
Hi
@Java
developers! The new
#JavaChallenger
is launched! Find out what are the differences between Error, Exception and RuntimeException! Do you know it?
#JavaChallengers
See if you can get this challenge right:
Do you want to take the
@Java
certification? The
#JavaQuizzes
will massively help you to achieve that!
#JavaDevGym
Take the
@Java
quiz *The attached image is from the previous quiz*:
Small consistent actions you perform turn out to become stunning results. By taking all the
@java
quiz I assure you that your
@java
skills will sky rocket.
#JavaDevGym
Improve your
@java
skills by taking the new ranked quiz:
Level up your Java skills with the Method Interceptor Java Challenge! 🕵️ Learn how to intercept methods for your toolkit. Unleash your potential! 💡👨💻
#Java
#JavaChallenge
#MethodInterceptor
Explore stream manipulation and filtering to make your Java code more efficient. Master limiting and filtering data with streams. Let's dive into this Java Challenge!
#Java
#JavaChallenge
#LimitStream
Optimize your Java code with streamlined stream manipulation and precise data filtering. Master the art of limiting and refining data using streams. Challenge yourself with this Java task!
🔗
#JavaChallenge
#StreamManipulation
#DataFiltering
Use a
#Stream
to manipulate data from a collection. It's handy and cleaner. Know how to limit to filter data with streams is crucial for you to do something useful with a stream in
#Java
! 🚀 Take on the Limit Stream Java Challenge!
🔗
#JavaStreams
Elevate your code efficiency with Functional Programming!
Join our Java Challenge to learn Functional Interfaces, Lambda Expressions, and more. Learn how they open doors to cleaner and more efficient code.
🔗
#Java
#FunctionalProgramming
#JavaChallenge
Get ready to master Java's functional interfaces, Supplier and Consumer, with the Joker Lambda Challenge! 🚀 Explore lambda behavior, test your skills, and gain valuable knowledge.
#Java
#JavaChallenge
#LambdaLearning
#CodeSkills