Java Thread resume()方法

Thread類的resume()方法僅用於suspend()方法。 此方法用於恢復使用suspend()方法掛起的線程。此方法允許掛起的線程再次啟動。

public final void resume()

異常

• SecurityException：如果當前線程無法修改線程。

示例

public class JavaResumeExp extends Thread
{
    public void run()
    {
        for(int i=1; i<5; i++)
        {
            try
            {
                // thread to sleep for 500 milliseconds
                 sleep(500);
                 System.out.println(Thread.currentThread().getName());
            }catch(InterruptedException e){System.out.println(e);}
            System.out.println(i);
        }
    }
    public static void main(String args[])
    {
        // creating three threads
        JavaResumeExp t1=new JavaResumeExp ();
        JavaResumeExp t2=new JavaResumeExp ();
        JavaResumeExp t3=new JavaResumeExp ();
        // call run() method
        t1.start();
        t2.start();
        t2.suspend(); // suspend t2 thread
        // call run() method
        t3.start();
        t2.resume(); // resume t2 thread
    }
}

執行上面示例代碼，得到以下結果：

Thread-0
1
Thread-2
1
Thread-1
1
Thread-0
2
Thread-2
2
Thread-1
2
Thread-0
3
Thread-2
3
Thread-1
3
Thread-0
4
Thread-2
4
Thread-1
4