Java线程：线程的调度-优先级
Java线程：线程的调度-优先级?与线程休眠类似，线程的优先级仍然无法保障线程的执行次序。只不过，优先级高的线程获取CPU资源的概率较大，优先级低的并非没机会执行。?线程的优先级用1-10之间的整数表示，数值越大优先级越高，默认的优先级为5。?在一个线程中开启另外一个新线程，则新开线程称为该线程的子线程，子线程初始优先级与父线程相同。?/**?
* Java线程：线程的调度-优先级?
*?
* @author leizhimin 2009-11-4 9:02:40?
*/?
public?class?Test {?
????????public?static?void?main(String[] args) {?
????????????????Thread t1 =?new?MyThread1();?
????????????????Thread t2 =?new?Thread(new?MyRunnable());?
????????????????t1.setPriority(10);?
????????????????t2.setPriority(1);?

????????????????t2.start();?
????????????????t1.start();?
????????}?
}?

class?MyThread1?extends?Thread {?
????????public?void?run() {?
????????????????for?(int?i = 0; i < 10; i++) {?
????????????????????????System.out.println("线程1第"?+ i +?"次执行！");?
????????????????????????try?{?
????????????????????????????????Thread.sleep(100);?
????????????????????????}?catch?(InterruptedException e) {?
????????????????????????????????e.printStackTrace();?
????????????????????????}?
????????????????}?
????????}?
}?

class?MyRunnable?implements?Runnable {?
????????public?void?run() {?
????????????????for?(int?i = 0; i < 10; i++) {?
????????????????????????System.out.println("线程2第"?+ i +?"次执行！");?
????????????????????????try?{?
????????????????????????????????Thread.sleep(100);?
????????????????????????}?catch?(InterruptedException e) {?
????????????????????????????????e.printStackTrace();?
????????????????????????}?
????????????????}?
????????}?
}?线程1第0次执行！?
线程2第0次执行！?
线程2第1次执行！?
线程1第1次执行！?
线程2第2次执行！?
线程1第2次执行！?
线程1第3次执行！?
线程2第3次执行！?
线程2第4次执行！?
线程1第4次执行！?
线程1第5次执行！?
线程2第5次执行！?
线程1第6次执行！?
线程2第6次执行！?
线程1第7次执行！?
线程2第7次执行！?
线程1第8次执行！?
线程2第8次执行！?
线程1第9次执行！?
线程2第9次执行！?

Process finished with exit code 0?