[1.7.2] Editing an Already Existing Configuration File?

[TLHPoE]

In my code, I create a configuration file in the world. My current problem, is editing values that are inside of it.

package net.rpg.helper;

import java.io.File;

import net.minecraft.world.World;
import net.minecraftforge.common.config.Configuration;

public class CoinHelper {
private static Configuration coinData;

public static void load(World w) {
	coinData = new Configuration(new File("./saves/" + w.getWorldInfo().getWorldName() + "/rpgdata.dat"));
	coinData.load();
}

public static void save() {
	coinData.save();
}

public static void setCoins(String n, int amt) {
	coinData.get("Coin Data", n, amt); //Doesn't work
	save();
}

public static void storePlayer(String n) {
	coinData.get("Coin Data", n, 0); 
}

public static int getCoins(String n) {
	return coinData.get("Coin Data", n, 0).getInt();
}
}

 

Is there a way to edit the values? The way I'm using in my code doesn't work.

[Draco18s]

coinData.get("Coin Data", n, amt).set(amt)?

[TLHPoE]

Thanks, that worked.