ConfigFile

Hi, i don't know how to create config.yml

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Code:

private FileConfiguration customConfig = null;
    private File customConfigFile = null;
    
    public void reloadCustomConfig() {
        if (customConfigFile == null) {
        customConfigFile = new File(getDataFolder(), "customConfig.yml");
        }
        customConfig = YamlConfiguration.loadConfiguration(customConfigFile);
     
        InputStream defConfigStream = this.getResource("customConfig.yml");
        if (defConfigStream != null) {
            YamlConfiguration defConfig = YamlConfiguration.loadConfiguration(defConfigStream);
            customConfig.setDefaults(defConfig);
        }
    }
    public FileConfiguration getCustomConfig() {
        if (customConfig == null) {
            this.reloadCustomConfig();
        }
        return customConfig;
    }
    public void saveCustomConfig() {
        if (customConfig == null || customConfigFile == null) {
        return;
        }
        try {
            getCustomConfig().save(customConfigFile);
        } catch (IOException ex) {
            this.getLogger().log(Level.SEVERE, "Could not save config to " + customConfigFile, ex);
        }
    }
    public void saveDefaultConfig() {
        if (!configFile.exists()) {            
             this.plugin.saveResource(fileName, false);
         }
    }

This is what i put in the main class before onEnable.

 

FileConfiguration config;
inside onenable:
config = getConfig();
config.set("whatever", true);
saveConfig();
profit