Java Tutorial: Java Threads (How to check Thread is alive or not) ~ foundjava

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MyRunnable.java

public class MyRunnable implements Runnable
{

    public void run()
    {
        Thread t = Thread.currentThread();
        // tests if this thread is alive
        System.out.println(t.getName()+" - isAlive = " + t.isAlive());
    }
}

ThreadDemo.java

public class ThreadDemo
{

    public static void main(String args[]) throws InterruptedException
    {
        Thread t = new Thread(new MyRunnable());
        
        // this will call run() function
        t.start();
        
        // waits for this thread to die
        t.join();
        
        // tests if this thread is alive
        System.out.println(t.getName()+" - isAlive after join = " + t.isAlive());
    }
}

Output

Thread-0 - isAlive = true
Thread-0 - isAlive after join = false

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