java8
博客:java8 streams系列
地址:https://www.ibm.com/developerworks/cn/java/j-java-streams-1-brian-goetz/index.html?ca=drs-
博客:java stream api详解
地址:https://www.ibm.com/developerworks/cn/java/j-lo-java8streamapi/
博客:方法引用
地址:https://www.cnblogs.com/JohnTsai/p/5806194.html