“基于接口而非实现编程”这条原则的英文描述是：“Program to an interface, not an implementation”。 我们理解这条原则的时候，千万不要一开始就与具体的编程语言挂钩，局限在编程语言的“接口”语法中（比如 Java 中的 interface 接口语法）。

男: 砸了你的摊, 逼着你离开, 最后知道真相的我眼泪掉下来, 砸了你的摊, 我背了良心债, 就算付出再多感情也再买不回来 ...

But things are changing in a big way with Java 8, and the programming community better be ready for it. "This is perhaps the biggest upgrade ever to the Java programming language," says Brian Goetz, ...