JDK 8 introduced a lot of new features and improvements in the platform from Lamda expressions, Stream collection types,
Functional interfaces, Type annotations, Nashorn etc.
Guava library from Google provided some support for functional programming idioms prior to JDK 8.
I have been using Guava for some of my projects. So here is a small write up on
how new functionality added in JDK 8 makes it...