How to write Scheduler in Java

import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 * This Class is Used to Run Every after 15 min
 *
 * @author ananddw
 **/
public class TestScheduler{

    public static void main(String[] args) {
        new TestScheduler().start();
    }

    public void start() {

        System.out.println(" scheduler starts");

        Executors.newSingleThreadScheduledExecutor().scheduleWithFixedDelay(new Runnable() {
            @Override
            public void run() {
                try {
                    //Need to Call Your Method which will execute every after 15 min
                    System.out.println(new java.util.Date());
                } catch (Throwable e) {
                    System.out.println("--Error in  Schduler--");
                    e.printStackTrace();
                }
            }
        }, 0, 15, TimeUnit.MINUTES);
    }
}