via Although you don't have to take my word for it, eventually you're going to have to accept the truth. Thread#kill, Thread#raise, timeout.rb, net/protocol.rb all suffer from these problems. net/protocol.rb could be fixed to use nonblocking IO (sele

在java中创建线程的方式有两种：1, 继承Thread class 2, 实现 Runnable interface 对象锁 java中每一个对象都有一个唯一的对象锁，一个该对象的同步的方法(synchronized方法)在执行时必须要先获得这个对象锁，也就是说这个同步方法与该对象其它的同步方法是互斥的，从这个对象的角度来看，同步的方法就是原子的。 类锁 每一个类也拥有一个唯一的类锁，主要用于静态方法的同步，即同步的静态方法之间是互斥的，而类锁与对象锁是不冲突的，即对于同一个类的方法，同步的静

According to Greg Bollella, a distinguished engineer at Sun Microsystems and one of the authors of the real-time Java specification, real time means the ability to reliably an...