bukkit scheduler documentation spigot code example

Example 1: spigot run task later

// 20L = 1 Second
Bukkit.getScheduler().runTaskLater(main, new Runnable() {
	public void run() {
		System.out.println("Plugin has been enabled for 5 seconds!");
	}
}, 100L);

Example 2: bukkit scheduled task

Bukkit.getScheduler().scheduleSyncRepeatingTask(instance, new Runnable() {
  @Override
  public void run() {
    //Your Code Here
  }
}, 0L, 20L);