一个关于Java多线程的技术文档，简单介绍了线程的概念，线程的创建，线程的调度，线程的优先级等基本概念，并配有相应的代码讲解。-Java multi-threaded on a technical documentation, briefly introduced the concept of threads, thread creation, thread scheduling, thread priority, the basic concepts and explain with a corresponding code.