Solved How can I add Listener?

I want to add the Listener.
What should I do it?
Should I create two classes?
Except that things,I want to learn how to make a plug-in for my world. What should I do? Or what steps should be done?
Thank you for your help.

 

What Listener do you want?

Normally, you would do something like this:

Code:

public class MainClass extends JavaPlugin implements Listener{
}

This will let you use code such as

Code:

@EventHandler
public void onPlayerChat(AsyncPlayerChatEvent event){
if(event.getMessage().contains("potato"){
event.getPlayer().sendMessage("Potato");
}
}

There is also something called a block listener. I recommend you research here.

 

Yes you would ideally have a separate class to separate the events logically, for example I have PlayerListener and VehicleListener etc; But you can be as specific as you'd like.
Create your class that implements the Listener interface.
Make sure you register that new class:

Code:

(plugin).getServer().getPluginManager().registerEvents(new PlayerListener(), (plugin)); 

All events must have a @EventHandler annotation for them to work with Bukkit.

 

I want one to monitor what the player is doing, such as the player entering an instruction, or destroying the box, and passing it to the main class file.
I use two classes to Distinguish.
Then use
getLogger().info();
or other code?

I know

Code:

(plugin).getServer().getPluginManager().registerEvents(new PlayerListener(), (plugin)); 

But I can use it finish my idea.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

@liaosunny
https://bukkit.gamepedia.com/Plugin_Tutorial
https://bukkit.gamepedia.com/Event_API_Reference

 

@caderapee
Thank you for you