Java Thread getThreadGroup()用法及代码示例

线程类的getThreadGroup()方法用于返回该线程所属线程的线程组。如果此线程已死亡(已停止)，则此方法返回 null。

用法

public final ThreadGroup getThreadGroup()

该方法返回线程的线程组。

示例

class JavaGetThreadGroupExp implements Runnable {
    public void run() 
    {
        System.out.println("javatpoint");
    }
}
public class GetThreadGroup 
{
    public static void main(String[] args) 
    {
        // create thread groups
        ThreadGroup group = new ThreadGroup("ThreadGroup");
        ThreadGroup anotherGroup = new ThreadGroup(group, "AnotherGroup");
        
        // create threads and placed into thread group
        Thread t1 = new Thread(group, new JavaGetThreadGroupExp(), "Thread-1");
        Thread t2 = new Thread(anotherGroup, new JavaGetThreadGroupExp(), "Thread-2");

        // Start the threads
        t1.start();
        t2.start();
        
        // returns the Thread Group to which this thread belongs
        System.out.println(t1.getName() +" is a member of " + t1.getThreadGroup().getName());
        System.out.println(t2.getName()+ " is a member of "+ t2.getThreadGroup().getName());
    }
}

输出：

Thread-1 is a member of ThreadGroup
Thread-2 is a member of AnotherGroup
javatpoint
javatpoint

上面的例子使用Thread类的getThreadGroup()方法获取ThreadGroup的对象，然后使用getName()方法获取线程组的名称。

相关用法

注：本文由纯净天空筛选整理自 Java Thread getThreadGroup() method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。