Solved Get String From Config.

So i'm making a sell plugin but I want only items the server owner puts into a config file to be sellable. I figured I could easily have my plugin do this by asking this config shown here for the plugin.getConfig().getString("Item1").toUpperCase(). This way I would have the string STONE and i could use that in this code.
if(inv.getItem(x).getType().equals(Material.(plugin.getConfig().getString("Item1").toUpperCase()))){
The thing is though. It says "Material cannot be resolved to a variable". Any ideas on how I could get this to work? Thank you!

# Fist plugin
# Version 1.0
Welcome Message: 'Hello'

Code:

#####SellItems#####
Item1: Stone
  Cost: 10
Item2: Grass
  Cost: 10
Item3: String
  Cost 10

 

Code:java

 
Material.getMaterial(name)
 

or

Code:java

 
Material.matchMaterial(name)
 

Get the material like this.

 

@Brendan22

Code:java

if(inv.getItem(x).getType().equals(Material.(plugin.getConfig().getString("Item1").toUpperCase()))){

If this is the code you're trying to use, there is one thing you must understand, you cannot reference a method/variable the usual way using a String, like you can in some more primitive languages. For example, the compiler will not allow you to do MyClass.myMethodNameInAVariable, even though the "myMethodNameInAVariable" variable might be set to a method that exists for that class, because it's simply impossible to make sure that this works in a consistent way.

. What you should do in this case is the Material.matchMaterial method, passing in the same String as above.

 

I believe a thread similar to this was opened just a few days ago. Loop through the keys in the config section, this would require you to have a parent key. However, you have misinterpreted how the YAML syntax works. You can always use a syntax checker for your appropriate format. If you use the linked tool, you can see it gives the error "(<unknown>): mapping values are not allowed in this context at line 3 column 7". You would want to make yours like this:

Code:

#####SellItems#####
items:
  STONE:
    cost: 10
  GRASS:
    cost: 10
  STRING:
    cost: 10

However, you must make sure the item name is a valid Material according to the bukkit documentation. In order to loop through the children of the parent key ("items"), use FileConfiguration#getConfigurationSection("items").getKeys(false). This will return a collection with all the item names as String-s. In your case the collection would contain: "STONE", "GRASS", and "STRING". You can easily loop through this collection and proceed:

Code:

double price = 0.0;
for(String key : FileConfiguration#getConfigurationSection("items").getKeys(false)) {
  price = FileConfiguration#getDouble("items." + key + ".cost");
  System.out.println("Price for " + key.toLowerCase() + " is " + price + ".");
}

 

Thank you for the feedback! Sorry for the delayed response most of my house was inaccessible yesterday (water pipe damage). I will try your suggestions soon and thank you again!

 

@AlvinB @JanTuck @DoggyCode™
Thank you guys for the help. Your suggestions worked.

Code:java

 
package b.brendan.sellmanager.commands;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.inventory.Inventory;
 
import b.brendan.sellmanager.SellManager;
 
public class sellhand implements CommandExecutor {
private SellManager instance = SellManager.getSellManager();
    private SellManager plugin;
    public sellhand(SellManager pl) {plugin = pl;}
 
    @SuppressWarnings("deprecation")
    @EventHandler
public boolean onCommand(CommandSender sender, Command command, String label, String[] args){
 
     Player player = (Player) sender;
     Inventory inv = player.getInventory();
     int total = 0;
     int x = player.getInventory().getHeldItemSlot();
 
     //checks the config for a matching item. If it exists then the loop stops and adds the config cost of that item to the total.
       if(inv.getItem(x) != null ){
         for(int i = 1; i <= plugin.getConfig().getInt("ItemAmount"); i++){
           if(inv.getItem(x) != null ){
              if(inv.getItem(x).getType().equals(Material.getMaterial(plugin.getConfig().getString("Item" + Integer.toString(i)).toUpperCase()))){
                int y = inv.getItem(x).getAmount();
                  total+=(y * plugin.getConfig().getInt("Cost" + Integer.toString(i)));
                  inv.clear(player.getInventory().getHeldItemSlot());}
              else{player.sendMessage(ChatColor.GREEN + "That item is not sellable");return true;}
        }}}
 
     //will run if no item is initially in hand
      else{player.sendMessage(ChatColor.GREEN + "You need an item in your hand!");return true;}
 
     //will run if there is a sellable item in hand
     instance.economy.depositPlayer(player.getName(), total);
     player.sendMessage(ChatColor.GREEN + "Recieved:" + ChatColor.RED  + " $" + total);
     total = 0;
 
      return true;
}}