杨猛先生是一名具有近10年开发经验的高级软件工程师，他曾服务于用友致远、SAP上海研究院及多家硅谷创业公司，具有丰富的企业级应用开发经验。他也在若干大学、企业讲授Java编程语言、数据结构与算法等课程。业余时间，他喜欢和朋友、孩子们一起踢球，在绿茵场上挥洒汗水。他对分享自己的经验心得充满激情，希望通过自己的努力帮助到更多Java初学者，让他们可以更加有效地学习，更快速地进步。他也是YouTube频道、资讯网站Java Never Sleep的创建者。

Nathanael Yang is a Senior Software Engineer with 10 years industry experience. He worked for UFIDA Seeyon, SAP Labs China and several Silicon Valley Start-Ups. He also teaches Java programming language, Data Structure and Algorithms in several companies and universities. In the spare time he likes to play soccer with his friends and son. He is passionate in sharing his knowledge and experience to help Java beginners to learn faster and better with friendly, funny and challenging courses he created. You may get to know more about him through his personal website and YouTube channel "Java Never Sleep".