MultiThreading Vs ThreadPoolExecutor
java, java.util.concurrent, multithreading, threadpoolexecutor
Solution
A `ThreadPoolExecutor` is just a high level API that enables you to run tasks in multiple threads while not having to deal with the low level Thread API. So it does not really make sense to differentiate between multithreading and ThreadPoolExecutor.
There are many flavours of `ThreadPoolExecutor`s, but most of them allow more than one thread to run in parallel. Typically, you would use an Executor Service and use the `Executors` factory.
For example, a `ExecutorService executor = Executors.newFixedThreadPool(10);` will run the tasks you submit in 10 threads.
Problem
I have used multithreading in many of applications I wrote . While reading more I came across `ThreadPoolExecutors`. I couldn't not differentiate between the two scenario wise . Still what I understand is I should use multithreading when I have a task I want to divide a task in to multiple small tasks to utilize CPU and do the work faster . And use `ThreadPoolExecutor` when I have a set to tasks and each task can be run independent of each other. Please correct me if I am wrong . Thanks