单选题

import java.util.concurrent.Arra...

Question

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？

A. 0

B. 5

C. 10

D. 不确定