How to use TimerTask with lambdas?

Question

As you hopefully know you can use lambdas in Java 8, for example to replace anonymous methods.

An example can be seen here of Java 7 vs Java 8:

Runna         


        

Answer 1

While Marko's answer is perfectly correct, I prefer my implementation:

public class FunctionalTimerTask extends TimerTask {

    Runnable task;

    public FunctionalTimerTask(Runnable task) {
        this.task = task;
    }

    @Override
    public void run() {
        task.run();
    }
}

 public static class Task {
    public static TimerTask set(Runnable run) {
        return new FunctionalTimerTask(() -> System.err.println("task"));
    }
}

 Timer timer = new Timer(false);
 timer.schedule(Task.set(() -> doStuff()), TimeUnit.SECONDS.toMillis(1));

This gives you more control over the timer, and you have a static utility class. Idealy give it a name that won't conflict with other common thread class, so not Task, Job, Timer.