Rafael del Nero
3,656 viewsSoprano 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
70,974 viewsRafael del Nero
3,656 views
Rafael del Nero
4,318 viewsMethod 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!
Rafael del Nero
3,111 viewsHidden Dracula Polymorphism Java Challenge
Polymorphism, the ability of an object to take on forms, one of the important Java concepts, decouples responsibilities, adding flexibility.
Rafael del Nero
4,526 viewsAsynchronous CompletableFuture Java Challenge
Solving the limitations of the Future interface, we have the CompletableFuture API with methods to build reliable high-performant software.
Rafael del Nero
4,182 viewsTake 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.
Rafael del Nero
5,409 viewsThe 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!
Rafael del Nero
3,018 viewsOptional 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.
Rafael del Nero
3,706 viewsNew 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 …