Shock! Even with the waiting time for cycling!

　　Yesterday analyze performance issues, see paragraphs similar to the code along the following lines:

long beginTime = System.current();
long interval = 36;

for (int i=0; i<100; i++)
{
    if (System.current()-beginTime<interval)
    {
        i--;
        continue;
    }

    ......
}

　　To wait for tens of milliseconds, so the CPU hard work ah. It is so creative.

　　Quickly into sleep ()