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Java Fundamentals - Threads

Threads

  • ExecutorService
Creates a thread pool and wait until all the elements had completed his job

ExcecutorService es = Executors.newFixedThreadPool( number_of_threads_to_work_);


submit add and execute the thread
es.submit( thread_class );

Avoid to add more work to the ExecutorService
es.shutdown()

  • Synchonized

To be used in a method to a piece of code to make not thread safe classes in safe classes to be used by threads

public void synchonized add(number ){
   // This method will be blocked to be used by one thread at the time
}

public void add(){
  //
  synchonized ( number ) {
 
 // The code inside this block will be tread safe
 // The code can inlcude synchonized methods
   }

}



  • Blocking Queues
LinkedBlockingQueue
PriorityBlockingQueue




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