Trisha Gee – Moving To Java 9: Better Design And Simpler Code

Description

Trisha Gee – Moving To Java 9: Better Design And Simpler Code

In Moving to Java 9 LiveLessons, Java Champion Trisha Gee introduces the key new features and shows how to migrate existing Java 8 applications to Java 9 in order to make use of these powerful features.

You will learn how Java 9 enables:
– More secure applications
– Better design through improved encapsulation and separation of concerns
– Cleaner, easier to read code

After quickly showing how to check your existing Java 8 code for compatibility before switching to Java 9, Trisha then reviews how Java 9 Modules work, what they are, why you might use them, and how to make your applications modular. In this training, she also covers what Reactive Streams are and how and where to use them, before moving on to look at JShell, the Java REPL.

Along the way, Trisha discusses the many advantages of switching to Java 9, including:
– Better use of memory
– Better performance of secure applications, locking, and graphics.
– Better use of hardware
– Better and easier to navigate documentation
– Prettier graphics, particularly for Windows and Linux
– Faster compilation

Before You Begin
Lesson 1: Getting Ready for Java 9
Learning objectives
1.1 Fixing Warnings in Java 8 and using JDeps
1.2 Compiling with Java 9

Lesson 2: The Java Platform Module System
Learning objectives
2.1 What is Jigsaw?
2.2 What is the Java Platform Module System (JPMS)?
2.3 Creating Modules
2.4 Assembling custom runtime images with jlink
2.5 Visualising dependacies
2.6 JPMS-Pros and Cons

Lesson 3: Reactive Programming with Java 9
Learning objectives
3.1 What is the Reactive Streams API?
3.2 Reactive Streams in Java 9
3.3 Using Reactive Streams
3.4 The Power of Reactive Programming
3.5 Reactive Streams vs Java 8 Streams

Lesson 4: JShell, the Java REPL
Learning objectives
4.1 What is a REPL what does it give us?
4.2 Using the REPL inside the IntelliJ IDEA

Lesson 5: API Changes in Java 9
Learning objectives
5.1 Convenience Factory Methods for Collections
5.2 Milling Project Coin
5.3 New Methods on the Streams API
5.4 New Methods on Optional
5.5 Stack Walking API
5.6 Process API Updates

Lesson 6: Other Interesting Changes
Learning objectives
6.1 Multi Release Jar Files
6.2 Updated Deprecation
6.3 Java Doc Updates
6.4 Java 9 Features that may impact your application

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