Prefer thread pool over multithreading

Preferred thread pool , Instead of multithreading
/**
* corePoolSize: The number of threads is maintained for a long time Number of core threads , Number of commonly used threads
* maximumPoolSize: The maximum number of threads , Maximum number of threads
* keepAliveTime: Thread duration exceeded ：60s
* Queuing of tasks :ArrayBlockingQueue It's a blocking queue , An array based blocking queue : fifo , Bounded queues , Queues do not support empty elements
*/
private static ExecutorService executor = new ThreadPoolExecutor(10, 10,
60L, TimeUnit.SECONDS, new ArrayBlockingQueue(10));

//ex:2
private static ThreadFactory threadFactory = new ThreadFactoryBuilder().build();
private static ExecutorService executorService = new ThreadPoolExecutor(10, 10,
        60L, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(10),
        threadFactory, new ThreadPoolExecutor.AbortPolicy());