✂️ Java

(most recent on top)

OS X Installation of multiple Java versions

• Running Multiple Java & JDKs on OS X | Technical Series
• Jenv not setting JAVA_HOME · Issue #44 · gcuisinier/jenv · GitHub

… basic installation

brew tap caskroom/cask
brew install Caskroom/cask/java

… environment management

brew install jenv

# .bash_profile
export JENV_ROOT=/usr/local/var/jenv
if which jenv > /dev/null; then eval "$(jenv init -)"; fi

… add installed versions

jenv add /Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home/
jenv add /Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home/

… no JAVA_HOME with jenv

jenv enable-plugin sbt

Java 8 new language features

• What’s New in JDK 8
• Java 8 Tutorial

• Default Methods for theerfaces
• Lambda expressions
• Functional Interfaces
• Method and Constructor References
• Lambda Scopes
• Built-in Functional Interfaces
• Streams
• Parallel Streams
• Map
• Date API
• Annotations

Java 7 new language features

• Java SE 7 Features and Enhancements
• A look at Java 7’s new features - O’Reilly Radar
• New Java 7 Language Features | Javalobby

• Diamond Operator
• Using strings in switch statements
• Automatic resource management
• Numeric literals with underscores
• Improved exception handling
• Working with Path
• File change notifications

Java 6 new language features

• Java SE 6 Features and Enhancements
• Java 6.0 New Features, Part 1 : Introduction[ ]{.Apple-converted-space}
• Java 6.0 New Features, Part 2 : Pluggable Annotation Processing API
• The Java 6.0 Compiler API

• Common Annotations
• Scripting Language for the Java Platform
• Pluggable Annotation Processing API
• Streaming API for XML
• Compiler API

Java 5 new language features

• J2SE(TM) 5.0 New Features
• What’s New in Java 1.5?

• Generics
• For/in loop
• Autoboxing/Unboxing
• Typesafe Enums
• Varargs
• Static Import
• Annotations (Metadata)