Java Coding Problems

ExecutorService

A more complex and comprehensive interface that provides many additional methods is ExecutorService. This is an enriched version of Executor. Java comes with a fully-fledged implementation of ExecutorService, named ThreadPoolExecutor. This is a thread pool that can be instantiated with a bunch of arguments, as follows:

ThreadPoolExecutor​(  int corePoolSize,  int maximumPoolSize,  long keepAliveTime,  TimeUnit unit,  BlockingQueue<Runnable> workQueue,  ThreadFactory threadFactory,  RejectedExecutionHandler handler)

Here is a short description of each of the arguments instantiated in the preceding code:

• corePoolSize: The number of threads to keep in the pool, even if they are idle (unless allowCoreThreadTimeOut is set)
• maximumPoolSize ...