Definitive Guide To Switch Expressions In Java 12
Java 12 introduces switch expressions. Together with a new lambda-style arrow syntax, this makes switch more expressive and less error-prone.
Java
Posts about concepts of the Java programming language. This does not include posts which merely employ Java to talk about something else.
Eleven Hidden Gems In Java 11
Think Java 11 is just a maintenance release? Think again! Here are eleven small but shiny additions to classes like String, Path, Files, Collection, Optional, and others that make coding a little more elegant.
Scripting Java 11, Shebang And All
From Java 11 on, you can execute a single source file without compiling it first. Beyond experimentation, you can write scripts this way. Even the shebang is supported!
Reactive HTTP/2 Requests And Responses In Java 11
With Java 11’s new reactive HTTP/2 API, request and response bodies can be handled with reactive streams, which gives you full control over the bytes going over the wire: you can throttle, stream, and even cancel early.
Java 11 HTTP/2 API Tutorial
Java 11 ships with a new, fluent HTTP/2 API. This tutorial explains the basic building blocks and how to send requests synchronously and asynchronously.
All You Need To Know For Migrating To Java 11
Migrating from Java 8 to Java 11? Then this post has got you covered. It discusses licensing, long-term support, update preparations, version requirements, common migration challenges, and more.
Unlocking Traits With ‘var’ In Java 10
With ‘var’ it is possible to ad-hoc combine traits into an instance that matches your exact requirements. This allows for pretty cool experimentation, but unfortunately has some serious downsides.
Tricks with ‘var’ and anonymous classes (that you should never use at work)
Local-variable type inference with `var` makes it easier to work with anonymous classes, for example to create ad-hoc fields and methods. But does that mean you should use them more often? I think not.
Unlocking Intersection Types With ‘var’ In Java 10
With ‘var’ it is much easier to work with intersection types in Java 10 and later. You still need non-trivial tricks with generics to declare intersection types, but thanks to ‘var’ it is now easy to create local variables of such types.
Improve Launch Times On Java 10 With Application Class-Data Sharing
On Java 10+, you can use application class-data sharing to reduce launch times, response time outliers, and memory footprint. By archiving class data with -Xshare:dump and loading it with -Xshare:on, the JVM’s class loading workload can be reduced considerably.