import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class Main {
public static void main(String[] args) {
ThreadPoolExecutor executor = new ThreadPoolExecutor(5, 10, 15, TimeUnit.SECONDS,
new ArrayBlockingQueue<Runnable>(5), new ThreadPoolExecutor.CallerRunsPolicy());
}
}
线程池executor在空闲状态下的线程个数是?