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In java, isAlive () and join () are two different methods that are used to check whether a thread has finished its execution or not. The isAlive () method returns true if the thread upon which it is called is still running otherwise it returns false. final boolean isAlive() But, join () method is used more commonly than isAlive ().
Jun 6, 2013 · 5. The join() method is used to wait for a thread to complete execution. The join() method of a Thread instance can be used to "join" the start of a thread's execution to the end of another thread's execution so that a thread will not start running until another thread has ended.
A thread is considered alive when the start () method of thread class has been called and the thread is not yet dead. This method returns true if the thread is still running and not finished. Syntax. public final boolean isAlive () Return. This method will return true if the thread is alive otherwise returns false.
Java Fork/Join Program. The following program illustrates the working of the fork/join in Java. System.out.println ("The number " + searchEle + " is found " + freq + " times. "); The number 50 is found 5 times. Explanation: In the code, we have extended the abstract class RecursiveTask. The compute () method of the class contains the ...
Apr 13, 2024 · The join () method is an instance method, and it is always called by an object of Thread class. The general syntax to call join () method in Java program is as follows: ThreadName.join(); // ThreadName is a reference variable of Thread class. Calling join () method halts the execution of current thread (calling thread) until the ThreadName ...
Direct Known Subclasses: ForkJoinWorkerThread. public class Thread extends Object implements Runnable. A thread is a thread of execution in a program. The Java virtual machine allows an application to have multiple threads of execution running concurrently. Thread defines constructors and a Thread.Builder to create threads.
Jan 6, 2016 · 27. Thread.currentThread().join() blocks the current thread forever. In your example, that prevents the main from exiting, unless the program is killed, e.g. with CTRL+C on Windows. Without that line, the main method would exit right after the server is started.
