Java 9 to Java 17: Master 12 Essential Features in 60 Min

Java 9 to Java 17: Master 12 Essential Features in 60 Min free download

Master Production-Ready Java 17 Features Through Practical Examples

This comprehensive crash course is designed for Java developers who want to quickly master 12 essential additions to the Java language between Java 9 and Java 17. While Java has evolved significantly since Java 9 with numerous platform changes, these twelve carefully selected features will become your go-to tools in daily programming tasks, helping you write cleaner, more efficient code that modern employers expect.

The course is driven completely using examples, every feature explained via code in around 5 minutes.

In some of the examples, we will utilize JUnit, OpenJFX, Jackson, and OpenCSV - You don't need to know any of these libraries. The focus will be on the 12 features.

Basic knowledge of Maven and JUnit is required.

You will also get to reinforce your learning by solving a bunch of interesting exercises.

We will master the following essential features:

• Collection Factory Methods - Create unmodifiable collections with elegant one-liner syntax

• Stream API Enhancements - Utilize powerful new methods in the Collectors class for flat mapping and filtering elements in complex stream pipelines

• Local-Variable Type Inference (var) - Write more concise, readable code while maintaining type safety

• Enhanced String & Files APIs - Leverage handy new methods in String, Files class, and the Predicate, Path interfaces for common operations

• Teeing Collector - Perform dual operations on every Stream element and merge results efficiently

• Switch Expressions - Replace verbose switch statements with clean, expression-based syntax

• Helpful NullPointerExceptions - Detect the exact cause of NPEs with precise error messages that save debugging time

• Text Blocks - Represent multi-line strings naturally without escape character clutter

• Pattern Matching for instanceof - Eliminate redundant casting and improve code readability

• Records - Create immutable data carriers with zero boilerplate code

• Sealed Classes - Control inheritance hierarchies precisely and close your type system

  
  

By course completion, you'll have practical experience with Modern Java features that distinguish experienced developers from those still using legacy approaches. These features will significantly boost your productivity, make your code more maintainable, and give you the confidence to discuss modern Java development in technical interviews and team discussions.

These features will help you be a more productive programmer.