USER

obtaining player data

public boolean userExist(UUID uuid)
{
        if(Bukkit.getPluginManager().getPlugin("UltraBreeds") == null) return false;

        User user = UltraBreeds.getInstance().getBreedsManager().getUserSearch InAllBreeds(uuid);

        return user != null;

}

This method checks if the cached data exists for that player.

The most important thing is to obtain the player's class:

public User getUser(UUID uuid)
{
        if(Bukkit.getPluginManager().getPlugin("UltraBreeds") == null) return false;

        User user = UltraBreeds.getInstance().getBreedsManager().getUserSearchInAllBreeds(uuid);

        return user;

}

The player data contains a lot of important information (stats, max stamina, current stamina, stamina, endurance, strength and stamina).