Java中实现多线程有两种途径：继承Thread类或者实现Runnable接口。Runnable是接口，建议用接口的方式生成线程，因为接口可以实现多继承，况且Runnable只有一个run方法，很适合继承。在使用Thread的时候只需继承Thread，并且new一个实例出来，调用 start()方法即可以启动 ...

Although jstack (Java Stack Trace) is a useful tool for learning more about a how a Java thread is behaving, VisualVM is an even easier method for obtaining the same type of information. It is easy to ...