?? hilopri.java
字號:
class Clicker implements Runnable
{
int click=0;
Thread t;
private volatile boolean running=true;
public Clicker(int p)
{
t=new Thread(this);
t.setPriority(p);
}
public void run()
{
while(running)
{
click++;
}
}
public void stop()
{
running=false;
}
public void start()
{
t.start();
}
}
public class HiLoPri
{
public static void main(String[] args)
{
Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
Clicker hi=new Clicker(Thread.NORM_PRIORITY+2);
Clicker lo=new Clicker(Thread.NORM_PRIORITY-2);
lo.start();
hi.start();
try
{
Thread.sleep(10000);
}
catch(InterruptedException e)
{
System.out.println("Main thread interrupted.");
}
hi.stop();
lo.stop();
try
{
hi.t.join();
lo.t.join();
}
catch(InterruptedException e)
{
System.out.println("InterruptedException caught");
}
System.out.println("Low-priority thread:"+lo.click);
System.out.println("High-priority thread:"+hi.click);
}
}
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