Information on threads

1. Runtime.getRuntime().availableProcessors();
2. Cached thread pool
   These are used for IO intensive operations

     Runnable job = () -> {
       try{
         Thread.sleep(20);
       }catch(InterruptedException e){
         System.println(e.printStackTrace());
       }
       Sysem.out.println(Thread.currentThread().getName());
     }
     
     ExecutorService executor = Executors.newCachedThreadPool(); // creating cached threadpool
     
     for(int i=0; i<10; i++){
      executor.execute(job); // executing the job with cached threadpool
     }
     
   

1. 
2. 
3. 
4. 
5. https://mkyong.com/java/java-scheduledexecutorservice-examples/

1. https://projectreactor.io/