Check and set Config

Hello, I have some problems with configs, i've made a inventory GUI here's the code:

Code:

@EventHandler
    public void onInterractGui(InventoryClickEvent event) {
        Player player = (Player) event.getWhoClicked();
        if (!main.choix.contains(player.getName()))
            return;
        switch (event.getCurrentItem().getType()) {
        case IRON_SWORD:
            chevalier(player);
            player.closeInventory();
            break;
default:
            break;
        }
    }

And this is the second part

Code:

public void chevalier(Player player) {
 
        String Classe = "Classe." + player.getName();
        String CurrentClasse = "CurrentClasse." + player.getName();
 
        if (getConfig().contains(Classe + "chevalier")) {
 
            player.sendMessage(ChatColor.GOLD + "Votre nouvelle classe est"
                    + ChatColor.DARK_BLUE + "Chevalier");
            getConfig().set(CurrentClasse, Integer.valueOf("chevalier"));
            saveConfig();
 
            player.closeInventory();
            main.choix.remove(player.getName());
        }
    }

Sorry but i'm a beginner and i don't know how to make this works :/
Thanks for help

 

What's the problem?

 

In the bit of code below, i think you may have missed out a . in the 6th line. I have posted a possible correction below.

Code:java

public void chevalier(Player player) {
 
String Classe = "Classe." + player.getName();
String CurrentClasse = "CurrentClasse." + player.getName();
 
if (getConfig().contains(Classe + "chevalier")) {
 
player.sendMessage(ChatColor.GOLD + "Votre nouvelle classe est"
+ ChatColor.DARK_BLUE + "Chevalier");
getConfig().set(CurrentClasse, Integer.valueOf("chevalier"));
saveConfig();
 
player.closeInventory();
main.choix.remove(player.getName());
}
}

Code:java

if (getConfig().contains(Classe + ".chevalier")) {

 

The problem is when i click on the iron sword the inventory is close but nothing after