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