(1)http://docs.oracle.com/javase/8/docs/technotes/guides/language/enhancements.html#javase8
(2)https://www.ibm.com/developerworks/cn/java/j-lo-jdk8newfeature/
(3)http://rensanning.iteye.com/blog/2037246
(4)http://www.cnblogs.com/figure9/p/java-8-lambdas-insideout-language-features.html
(1)是英文官方文档,(2)是一份中文文档,结合(3)一起看,(2)总结得更系统,(3)分析得更细致,而关于java8为什么要引入
这些新特性,以及一些读后的FAQ,可以看(4)