was released on 18th March 2014. That’s a long time ago but still many projects are running on Java 8. It’s because it was a major release with a lot of new features. Let’s look at all the exciting and major features of Java 8 with example code. Quick Overview of Java 8 Feat...
Java 8was released in early 2014. This tutorial list down importantJava 8 featureswith examples such as lambda expressions, Java streams, functional interfaces, default methods and date-time API changes. 1. Lambda Expressions Lambda expressionsare known to many of us who have worked on other popu...
Optionalisnot meant to be a mechanism to avoid all types of null pointers. e.g. The mandatory input parameters of methods and constructors will still have to be tested. Like when using null,Optionaldoes not help with conveying the meaning of an absent value. So the caller of the method ...
Introduction Java 8 Grouping with Collectors tutorial explains how to use the predefined Collector returned by groupingBy() method of java.util.stream.Collectors class with examples. The tutorial begins with explaining how grouping of stream elements works using a Grouping Collector. The concept of ...
Examples This example usesgroupingBy(classifier)method and converts the stream string elements to a map having keys as length of input strings and values as input strings. packagecom.logicbig.example.collectors; importjava.util.List; importjava.util.Map; ...
Java 9 Misc Features Java 9 JShell Recent Tutorials Spring - Validator Factory Methods Examples Spring - Getting completion callback using AsyncTaskExecutor submitCompletable() Spring - ConcurrentTaskExecutor Example Spring - ThreadPoolTaskExecutor Example Spring - Using AsyncListenableTaskExecutor and Lis...
The best way to read this book is with a Java 8 supporting IDE running so you can try out the new features.Code examples can be found on github.2. Lambda ExpressionsThe biggest new feature of Java 8 is language level support for lambda expressions (Project Lambda). A lambda expression ...
Code Examples for the book "On Java 8". Contribute to BruceEckel/OnJava8-Examples development by creating an account on GitHub.
This has the added benefit of being much faster than the versions using the explicit reduce and String::concat from the earlier examples, so it’s generally a better bet. BE READY The release of Java SE 8 swiftly approaches. With it come not only the new linguistic lambda expressions (...
The Java 8 Predicate is largely tied to functional programming, but it doesn't have to be. Here are some examples with lambdas to get the most out of the component and reduce the verbosity of your code.