(Dirty?) Tricks in Java 22 - Inside Java Newscast #64
Java 22 has many language features that Java 8 could only dream of - let's see what (dirty) tricks we can play with them: We'll see how to pattern-match `Optional`, how to expand a sealed type hierarchy, why nested switches may (?) be good for documentation, and how a reverse `instanceof` check is both elegant and questionable. We'll also go into text block line endings and filtering streamy by type.
~~~ Links ~~~
* Java 17 to 20 Pattern Matching Full tutorial with Records, Instanceof and Switch: • Java 17 to 20 Pattern Matching Full t...
* How can you use flatMap to filter a stream? • How can you use flatMap to filter a s...
* Where to use Optional: • Where to use Optional - Inside Java N...
* Text Blocks: • Text Blocks - JEP Café #5
~~~ Chapters ~~~
0:00 Intro
1:13 Expandable Sealed Types
3:00 Nesting Switches
5:22 Reverse Instanceof
6:36 Filter A Stream By Type
7:38 JDK 22 Launch Stream
https://dev.java/community/java-22-la...
8:11 Switching Over Optional
9:53 Text Block Line Endings
12:04 Good or Dirty?
12:58 Outro
Tags: #Java, #Java22, #OpenJDK
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