Soprano ofNullable stream Java Challenge
Since Java 9, you can use Optional with a stream to manipulate values from a List. Check out the latest Java challenge about this!
Rafael del Nero
18 articles
71,721 views
Method Reference VS Lambda Java Challenge
In this Java Challenge, we will explore how lambdas and method references behave so that you can really understand how they work!
Hidden Dracula Polymorphism Java Challenge
Polymorphism, the ability of an object to take on forms, one of the important Java concepts, decouples responsibilities, adding flexibility.
Asynchronous CompletableFuture Java Challenge
Solving the limitations of the Future interface, we have the CompletableFuture API with methods to build reliable high-performant software.
Take the Type Erasure Generics Java Challenge!
In this challenge, you will see the generic type that will be erased by the compiler and will be replaced by the type we defined at runtime.
The Map, Equals, Hashcode Java Challenge
Understanding deeply how to use a Map, equals, and hashcode in Java will be a massive help for you to create high-quality code!
Optional takeWhile dropWhile Java Challenge
Main goal of the Optional class is to avoid NullPointerException. It’s much easier to deal with null when we use the concept of Optional.
New Book Announcement: "Java Challengers"
Newly released "Java Challenges" book is a way for you to challenge yourself with fun code challenges so you will be a better Java …