说明：  toBeBetterJavaer,一份通俗易懂、风趣幽默的Java学习指南,内容涵盖Java基础、Java并发编程、Java虚拟机、Java企业级开发、Java面试等核心知识点。学Java,就认准二哥的Java进阶之路
(ToBeBetterJavaer, an easy to understand, funny and humorous Java learning guide, covering core knowledge points such as Java basics, Java concurrent programming, Java Virtual Machine, Java enterprise development, Java interview, etc. To learn Java, identify your second brother s path to Java advancement)