Using Java 17 latest features in real world projects

What if you could replace complex try-catch blocks with elegant, type-safe code? Learn how Java 17's sealed classes and pattern matching make it possible.

#1about 1 minute

Exploring new language features from Java 12 to 17

An overview of the five key language features introduced between Java 12 and the long-term support release of Java 17.

#2about 3 minutes

Using switch expressions for cleaner conditional logic

The switch expression modernizes conditional logic by returning a value, using arrow syntax, and ensuring exhaustive cases.

#3about 3 minutes

Simplifying multiline strings with text blocks

Text blocks use triple quotes to create multiline strings, eliminating the need for manual concatenation and escaping characters.

#4about 6 minutes

Creating immutable data carriers with records

Records provide a concise syntax for creating immutable data classes, automatically generating constructors, accessors, and essential methods.

#5about 4 minutes

Controlling class hierarchies with sealed classes

Sealed classes and interfaces restrict which other classes can extend or implement them, enabling more precise domain modeling and exhaustive pattern matching.

#6about 4 minutes

Deconstructing objects with pattern matching

Pattern matching simplifies object deconstruction by combining type checks and variable extraction in constructs like `instanceof` and switch expressions.

#7about 2 minutes

Refactoring asynchronous code with modern Java features

A practical example demonstrates how to combine sealed interfaces, records, and switch expressions to refactor complex asynchronous logic into more readable code.

#8about 6 minutes

Q&A on framework support, Kotlin, and the JMM

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.