Thread.sleep waits more than expected

Question

The following code:

long msBefore = System.currentTimeMillis();
//Thread.currentThread().setPriority(Thread.MAX_PRIORITY);
try
{Thread.sleep(200);
} catch (I         


        

Answer 1

You're not taking into account the time it spends processing.

    try {
        long processingStart = System.currentTimeMillis();

        long processingFinish = System.currentTimeMillis();
        long processTime = 600 - (processingFinish - processingStart);
        Thread.sleep(processTime);

    } catch (InterruptedException ex) {

    }