This document summarizes features of Java 8 and provides a sneak peek at Java 9. It outlines that the session will cover Lambda expressions, Stream API, Date and Time API, and Nashorn. It also lists expected new features in Java 9 like Project Jigsaw for modules, jshell for REPL, potential changes to the default garbage collector, support for HTTP 2.0, and new process APIs. Helpful links are provided for Java 9 early access, the Java module system, applying lambdas, and Nashorn documentation. Contact details are given at the end.

1. Features of Java 8
Java 9 sneak peak
Kanke Ishaku

2. Get started
• Java 8 installed:
http://www.oracle.com/technetwork/java/javase/do
wnloads/jdk8-downloads-2133151.html
• IDE of your choice
• To have access to slides:
http://www.slideshare.net/sugarkanke
• Git Repo: https://github.com/kanke/Java8Features

3. We will hopefully be covering:-
• Lambda
• Stream API
• Date and Time API
• Nashorn

4. Date and time Api
• Java.time package
• Fixes issues of Java
• New concepts of date and duration
• Dealing with time zones/formatting and computing
date from a given date

5. Nashorn
• REPL -
http://www.javarepl.com/console.html
• Navigate to JAVA_HOME/bin/jjs
directory
• ScriptEngine

6. Features expected to be released with Java 9
• Project Jigsaw - modular system in Java
• Java + REPL = jshell
• Will G1 be the new default garbage collector?
• Full support for HTTP 2.0 and a new HTTP client that
will replace HttpURLConnection
• The process API

7. Helpful links:
• Java 9 early access: https://jdk9.java.net/download/
• https://dzone.com/articles/the-java-module-system-first-
look
• http://zeroturnaround.com/rebellabs/java-8-explained-
applying-lambdas-to-java-collections/
• http://docs.oracle.com/javase/7/docs/technotes/guides/
scripting/programmer_guide/

8. Email: kanke.ishaku@live.com
LinkedIn: https://uk.linkedin.com/in/kankeishaku
Twitter: @sugarkanke
Git: https://github.com/kanke