In Java 9 we can use Collection Factory with List, Set, or Map. This makes code more concise and easier to read because we don’t need to add element per element in the Map. Therefore, it’s time to try this fun Java Challenge! Are you...
The Optional concept is present in many other programming languages. The main goal of the Optional class is to avoid NullPointerException. It’s much easier to deal with null values when we use the concepts of an Optional. In this challenge, we...
There are many concepts involved in Java Challenge! In essence, we will explore lambdas and the Function interface the most. However, we also have static methods introduced in Java 8 the private method in interfaces introduced in Java 9. In the...
Learn deeply the Java language by having fun with the Java Challenges! Master the concepts of Advanced Overloading and make your code better by tracking down bugs more easily. Also, get the Java certification to improve your CV 🙂 If you want to go...
Learn how to use the amazing Java 8 Time API and make your code very clear, easy to understand and maintain. Try it out this challenge and improve your Java skills by having fun! Get the code of the Java Challengers and run your own tests:
Learn Java Streams deeply by having fun with this Java Challenge! Can you take this Java Challenge right? Try it out and then see the detailed explanation! Take your Java skills to the next level by watching all Java Challenges videos! Get the code...
Absorb deep concepts from Java core by taking fun challenges that will make your code cleaner and easy to maintain. The more we know about the programming language we work the better our code gets. Get the code of the Java Challengers and run your...
Learn deeply concepts from Java core and improve your code quality! Do you know how constructors, static block and instance block behave? Find out on this Java Challenger! Remember, the better you know Java the better your code will be!
Use try catch with Exception and Error by using the new try with resources feature from Java 9 by not declaring the Exception into the try block! Take this Java Challenger and be able to use the full power of it! Master recent Java versions by...
Learn the Collection Factory methods concepts from Java 9. Learn concepts from the most recent Java versions by taking the challenges and having fun at the same time. Also, improve your range of Java skills so you can produce better code.