Listeners (CraftBukkit)

listeners.java

//let's say we're replacing this:

public MyChatListener extends ChatListener {
    public void onPlayerChat(PlayerChatEvent event) {
        //do something
    }
}

//We'll change it to this:

public class MyCustomListener implements Listener {
    @EventHandler
    public void onPlayerSaySomething(PlayerChatEvent e) {
        //do something
    }
}