Java is a class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Tengine is a web server which is based on the Nginx HTTP server.
Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.