Modern Java with IntelliJ IDEA

The current release cadence of a new version of Java every 6 months can be overwhelming. The releases might even contain preview features which are "complete" but may change with every new release until they finally stabilize. How can a real developer keep up with this? The good news is that your IDE can help. IntelliJ IDEA not only provides support for the latest versions of Java (even the ones that aren't released yet), it can also help us to discover and use the new language features. This way we can let the IDE help us to migrate to the latest and greatest, and we don't need to go researching for the relevant features every 6 months. In this session, Trisha will show the interesting language features in recent versions of Java, and show how IntelliJ IDEA makes these really easy to find and use.

Transcript

1. IntelliJ IDEA ©JetBrains. All rights reserved Modern Java with IntelliJ IDEA Trisha Gee (@trisha_gee) Java Champion & Java Advocacy Lead, JetBrains
2. Define “Modern Java”
3. https://www.jetbrains.com/lp/devecosystem-2020/java/ Despite the emergence of newer versions, Java 8 is still most beloved. It is used by 3/4 of Java developers. Java 11 is growing more popular. Compared to last year, its usage has increased by 10 percentage points.
4. https://flic.kr/p/8xhk74
5. Java 11 Long Term Support (LTS) Release; ~3 years support
6. Java 15 Current release; be prepared to upgrade in March 2021
7. IntelliJ IDEA can help you
9. Why bother?
10. Super happy with Java 8, thanks
11. Java 11 Long Term Support (LTS) Release
12. var
13. Convenience Factory Methods for Collections
14. Collecting to Unmodifable Collections
15. New Methods on Optional
16. Java 15 Current Release
17. Switch Expressions
18. Switch Expressions https://jb.gg/ij-jdk12
19. Text Blocks
20. Text Blocks https://jb.gg/ij-jdk13
21. Preview Features
24. Pattern Matching for instanceof
25. Pattern Matching for instanceof https://jb.gg/ij-jdk14
26. Records
27. Records https://jb.gg/ij-jdk14
28. Sealed Types
29. Sealed Types https://jb.gg/ij-jdk15
30. Tips for Migration
31. http://bit.ly/8-to-11
32. Address compiler warnings
33. Address compiler warnings …they are there for a reason
34. Update your dependencies
35. Update your dependencies And add new ones
36. Update your build tool
37. Update your build tool Updated Maven and Gradle required
38. Let your tools do the hard work
39. http://bit.ly/ij-modern-java @trisha_gee