Java server error

Hi everyone, I'm trying to make a Minecraft server with Java/Eclipse, and I have run into an error
EventHandle v1.0 attempted to register an invalid EventHandler method signature "public boolean me.raycharlesman.PlayerListener.onEnter(org.bukkit.command.CommandSender,org.bukkit.command.Command,java.lang.String,java.lang.String[])" in class me.raycharlesman.PlayerListener

This is my Main class:

Code:

package me.raycharlesman;

import org.bukkit.plugin.java.JavaPlugin;

public class MyFirstPlugin extends JavaPlugin {

    @Override
    public void onEnable() {
       new PlayerListener(this);
    }
  
    @Override
    public void onDisable() {
      
    }
  
}

And this is my listener:

Code:

package me.raycharlesman;

import org.bukkit.Server;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;


public class PlayerListener implements Listener {
  
    public PlayerListener(MyFirstPlugin plugin) {
        plugin.getServer().getPluginManager().registerEvents(this, plugin);
    }

    @EventHandler
    public boolean onEnter(CommandSender sender, Command cmd, String label, String[] args) {
      

        return getServer().dispatchCommand(getServer().getConsoleSender(), "summon LightningBolt" + args[3]);
    }

    private Server getServer() {
        // TODO Auto-generated method stub
        return null;
    }
  
}

Thank you in advance to anyone who helps me with this error.

 

@jackpdot You are mixing events and commands. You are also making a useless and null getServer.

 

It is possible mixing events and commands with constructors.

Also, use the static method getServer() that comes with Bukkit, not yours. The one you made returns nothing.

 

@jackpdot
I just want to highlight this part:

Are you sure you mean making your server with Java, or do you mean making a Plugin with Java? Because, if it is the first, this thread needs to be moved to BukkitAlternatives or Offtopic.

Also, there is no "onEnter" method in Bukkit. Unless you plan on making your own command system, you need to use onCommand.

 

Formatted code:

Code:

package me.raycharlesman;

import org.bukkit.Server;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;


public class PlayerListener implements Listener {

    public PlayerListener(MyFirstPlugin plugin) {
        plugin.getServer().getPluginManager().registerEvents(this, this);
    }

   
  
public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {

     Player p = (Player) sender; // sets the sender as Player (p)

// Make your own commands here:

// example:

if (cmd.getName().equalsIgnoreCase("test")) {
                p.sendMessage(ChatColor.RED + "Congratz, this is your first command!");


            }

        return true;
    }


  

}

*Dont forget plugin.yml *!!

 

-snip-