Java ThreadGroup setMaxPriority() 方法

2024 年 11 月 11 日 | 阅读 1 分钟

ThreadGroup 类的 setMaxPriority() 方法用于设置线程组的最大优先级。

语法

参数

pri: 这是线程组的新优先级。

示例

class NewThread extends Thread 
{
    NewThread(String threadname, ThreadGroup tgob)
    {
        super(tgob, threadname);
    }
    public void run()
    {
        for (int i = 0; i < 10; i++) 
        {
            try
            {
                Thread.sleep(10);
            }
            catch (InterruptedException ex) {
                System.out.println("Thread " + Thread.currentThread().getName() + " interrupted"); }
        }
        System.out.println(Thread.currentThread().getName() + " [priority = " + 
           Thread.currentThread().getPriority() + "]");
        System.out.println(Thread.currentThread().getName()+" finished execution");
    }
} 
public class ThreadGroupSetPriorityExp
{
    public static void main(String arg[]) throws InterruptedException,
        SecurityException, Exception
    {
        // creating the thread group
        ThreadGroup tg1 = new ThreadGroup("Parent threadGroup");
        ThreadGroup tg2 = new ThreadGroup(tg1, "child threadGroup");
        tg1.setMaxPriority(Thread.MAX_PRIORITY-3);
        tg2.setMaxPriority(Thread.MIN_PRIORITY);
        
        // creating a thread
        NewThread t1 = new NewThread("Thread-1", tg1);
        t1.setPriority(Thread.MAX_PRIORITY);
        System.out.println(t1.getName() + " starts");
        t1.start();
        
        // creating another thread
        NewThread t2 = new NewThread("Thread-2", tg2);
        t2.setPriority(Thread.MAX_PRIORITY);
        System.out.println(t2.getName() + " starts");
        t2.start();
    }
}

输出

Thread-1 starts
Thread-2 starts
Thread-1 [priority = 7]
Thread-2 [priority = 1]
Thread-2 finished execution
Thread-1 finished execution

下一个主题Java-threadgroup-stop-method

Java ThreadGroup setMaxPriority() 方法

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Java ThreadGroup setMaxPriority() 方法

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参数

示例

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