Java 实例 - 查看线程优先级

以下实例演示了如何使用 getThreadId() 方法获取线程id：

Main.java 文件 public class Main extends Object { private static Runnable makeRunnable() { Runnable r = new Runnable() { public void run() { for (int i = 0; i < 5; i++) { Thread t = Thread.currentThread(); System.out.println("in run() - priority=" + t.getPriority()+ ", name=" + t.getName()); try { Thread.sleep(2000); } catch (InterruptedException x) { } } } }; return r; } public static void main(String[] args) { System.out.println("in main() - Thread.currentThread().getPriority()=" + Thread.currentThread().getPriority()); System.out.println("in main() - Thread.currentThread().getName()="+ Thread.currentThread().getName()); Thread threadA = new Thread(makeRunnable(), "threadA"); threadA.start(); try { Thread.sleep(3000); } catch (InterruptedException x) { } System.out.println("in main() - threadA.getPriority()="+ threadA.getPriority()); } } 以上代码运行输出结果为：

in main() - Thread.currentThread().getPriority()=5
in main() - Thread.currentThread().getName()=main
in run() - priority=5, name=threadA
in run() - priority=5, name=threadA
in main() - threadA.getPriority()=5
in run() - priority=5, name=threadA
in run() - priority=5, name=threadA
in run() - priority=5, name=threadA