Java 8 Guides and Tutorials - A lot of awesome examples using Java 8 features like Stream, Lambda, Functional Interface, Date and Time API and much more ...

☕【Java 新特性系列】Java 版本任你发，我用 Java 8 。但是多学点这种奇巧的装 X 技巧总没错，何况有些新语法说不定是真香呢。

Java 8 enables us to add non-abstract method implementations to interfaces by utilizing the default keyword. This feature is also known as virtual extension methods. ```javaFormula formula = new ...