An overview of the five key language features introduced between Java 12 and the long-term support release of Java 17.
The switch expression modernizes conditional logic by returning a value, using arrow syntax, and ensuring exhaustive cases.
Text blocks use triple quotes to create multiline strings, eliminating the need for manual concatenation and escaping characters.
Records provide a concise syntax for creating immutable data classes, automatically generating constructors, accessors, and essential methods.
Sealed classes and interfaces restrict which other classes can extend or implement them, enabling more precise domain modeling and exhaustive pattern matching.
Pattern matching simplifies object deconstruction by combining type checks and variable extraction in constructs like `instanceof` and switch expressions.
A practical example demonstrates how to combine sealed interfaces, records, and switch expressions to refactor complex asynchronous logic into more readable code.
The Q&A session addresses framework support for records in Spring and JPA, the absence of a builder pattern, comparisons to Kotlin, and recent changes to the Java Memory Model.
27:49Ron Veen
47:15Daniel Strmečki
1:11:05Mohamed Taman
45:30Michael Inden
30:21Ron Veen
57:45Jonathan Vila
55:30Christian Woerz
1:07:36Josh Long
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Jobs that call for the skills explored in this talk.
wunschlösung GmbH
Jena, Germany
wunschlösung GmbH
Jena, Germany
Employer&Employee
Berlin, Germany