SingleThread

/**
 * SingleThreadPool
 * 线程池中只有一个线程
 * 作用,保证线程执行的时序性
 */
public class T09_SingleThreadPool {

    public static void main(String[] args) {
        ExecutorService service = Executors.newSingleThreadExecutor();
        for (int i = 0; i < 5; i++) {
            final int j = i;
            service.execute(() -> {
                System.out.println(j + " " + Thread.currentThread().getName());
            });
        }
    } 
}