In this post we’ll learn about CompletableFuture class in Java along with examples to understand the functionalities this class provides. CompletableFuture in Java CompletableFuture is used for asynchronous computation of the task where the task is executed by a separate thread and the result is returned when it is ready.…
Java programming language provides two ways to implement a class whose instances are to be executed by a thread. By implementing Runnable interface By implementing Callable interface Since there are two options so they must have some difference in the features they offer, that’s what we’ll discuss in this post;…
ScheduledThreadPoolExecutor in Java adds functionality to schedule commands to run after a given delay, or to execute periodically. Since ScheduledThreadPoolExecutor is an ExecutorService so it uses thread from a thread pool to execute tasks. Java ScheduledThreadPoolExecutor ScheduledThreadPoolExecutor class is part of Java Executor framework with in the Java concurrent API.…
ThreadPoolExecutor in Java is used to execute each submitted task using one of possibly several pooled threads. When an instance of ThreadPoolExecutor is created a thread pool is also created and one of the thread from this pool of threads is used to execute tasks. Java ThreadPoolExecutor ThreadPoolExecutor class is…
In this Java executor tutorial we’ll learn how to use Executor, ExecutorService, ScheduledExecutorService and their thread pool implementations to effectively manage threads in a large scale application. Java Executor API While using Java multi-threading for creating thread, there is a close connection between the task being done by a new…
In this post we’ll see two of the interesting features of the concurrent API, Callable and Future in Java. Callable in Java Consider a scenario where you have a big computation and you want to split it into multiple sub-tasks which are executed by multiple threads with each thread working…
ConcurrentLinkedDeque in Java implements Deque interface and is part of java.util.concurrent package. ConcurrentLinkedDeque in Java is an unbounded concurrent deque which is thread-safe. It stores its elements as linked nodes where each node stores a reference to both previous and next nodes. How ConcurrentLinkedDeque differs from the blocking Deque implementations…
ConcurrentLinkedQueue in Java implements Queue interface and is part of java.util.concurrent package. ConcurrentLinkedQueue in Java is an unbounded queue which is thread-safe. It stores its elements as linked nodes where each node stores a reference to the next node. How ConcurrentLinkedQueue differs from the BlockingQueue implementations like ArrayBlockingQueue, PriorityBlockingQueue is…
LinkedTransferQueue in Java is an implementation of the TransferQueue interface and is part of java.util.concurrent package. It was added in Java 7. TransferQueue interface in Java TransferQueue interface which extends BlockingQueue interface adds the capability where producers may wait for consumers to receive elements. In BlockingQueue implementations like ArrayBlockingQueue, PriorityBlockingQueue…
LinkedBlockingDeque in Java is an implementation of BlockingDeque interface and is part of java.util.concurrent package. LinkedBlockingDeque, just like LinkedBlockingQueue, is an optionally-bounded blocking queue which means the capacity for the queue can be specified thus making it bounded or it can be left unspecified in which case capacity of the…