Java ThreadGroup suspend()用法及代碼示例

ThreadGroup 類的 suspend() 方法用於掛起線程組中的所有線程。

用法

public final void suspend()

此方法不返回任何值。

異常

SecurityException：如果不允許當前線程訪問線程組或線程組中的任何線程，則拋出此異常。

例子1

class NewThread extends Thread 
{
    NewThread(String threadname, ThreadGroup tg)
    {
        super(tg, threadname);
    }
    public void run()
    {
        for(int i = 0;i < 10;i++) 
        {
            i++;
        }
        System.out.println(Thread.currentThread().getName() + " completed executing");
    }
}
public class ThreadGroupSuspendExp 
{
    public static void main(String arg[]) throws InterruptedException,
        SecurityException, Exception
    {
        // creating the threadGroup
        ThreadGroup tg1 = new ThreadGroup("Parent thread");
        ThreadGroup tg2 = new ThreadGroup(tg1, "Child thread");

        // creating a thread 
        NewThread t1 = new NewThread("Thread-1", tg1);
        System.out.println("Starting of Thread-1");
        t1.start();
        // creating another thread 
        NewThread t2 = new NewThread("Thread-2", tg2);
        System.out.println("Starting of Thread-2");
        t2.start();
       
        // this will suspend all the threads
        tg1.suspend();
    }
}

輸出：

Starting of Thread-1
Starting of Thread-2

相關用法

注：本文由純淨天空篩選整理自 Java ThreadGroup suspend() method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。