Teaches you the ins and outs of Java 9 (not the module system, though). The links below take you to the demo in this project, the JEP responsible for introducing the feature, and to other sources if available.
The scripts are written for Linux but should look similar on other operating systems. They do need three symlinks, though:
java9links tojavain the JDK 9 installjavac9links tojavacin the JDK 9 installjar9links tojarin the JDK 9 install
The language changes are rather small and there is no real point in doing any exercises - it suffices to take a look.
- private interface methods (JEP 213)
- try-with-resources on effectively final variables (JEP 213)
- diamond operator for anonymous classes (JEP 213)
@SaveVarargson private non-final methods (JEP 213)- no warnings for deprecated imports (JEP 211)
StreamimprovementsOptionalimprovements- collection factory methods (instead of collection literals; JEP 269)
- stack walking (JEP 259, post on SitePoint including benchmarks)