DecimalFormat problem

I am trying to put the users balance to a two decimal double? But for some reason it keeps returning with one decimal place? any help?

Code:

package com.kassestral.plugins.currency;

import java.io.File;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.UUID;

import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.Player;

public class Account {

    Plugin plugin = Plugin.plugin;
   
    private double balance;
    private YamlConfiguration account;
    private File account_file;
    private DecimalFormat decimal = new DecimalFormat("0.00");
   
   
    public Account(Player player) {
        UUID UUID = player.getUniqueId();
        this.account_file = new File(plugin.getDataFolder() + File.separator + "accounts" + File.separator + UUID.toString() + ".yml");
        this.account = YamlConfiguration.loadConfiguration(account_file);
        this.balance = Double.valueOf(decimal.format(account.getDouble("balance")));
    }


    public double getBalance() {
        return this.balance;
    }


    public void setBalance(double amount) throws IOException {
        this.balance = Double.valueOf(decimal.format(amount));
        account.set("balance", this.balance);
        account.save(account_file);
    }
   
    public void addBalance(double amount) throws IOException {
        this.balance = this.balance + Double.valueOf(decimal.format(amount));
        account.set("balance", this.balance + Double.valueOf(decimal.format(amount)));
        account.save(account_file);
    }
   
    public void deductBalance(double amount) throws IOException {
        this.balance = this.balance - Double.valueOf(decimal.format(amount));
        account.set("balance", this.balance - Double.valueOf(decimal.format(amount)));
        account.save(account_file);
    }
   
    public boolean hasBalance(double amount) {
        if(this.balance >= amount) {
            return true;
        }
        else {
            return false;
        }
    }
   
}

 

@Kassestral Are you sure your exporting it correctly? It looks fine to me.

 

@Skionz I completely deleted the plugin and it's folder from the plugin's folder, I then re-exported it and still it doesn't work

 

@Kassestral

Try String.format() :

Code:java

package com.kassestral.plugins.currency;
 
import java.io.File;
import java.util.UUID;
 
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.Player;
 
public class AccountFactory {
 
    Plugin plugin;
 
    public AccountFactory(Plugin reference) {
        this.plugin = reference;
    }
 
    public Account loadOrCreate(Player player) {
        UUID id = player.getUniqueId();
        File accountFile = new File(plugin.getDatafolder() + File.separator + "accounts" + File.separator + UUID.toString() + ".yml");
        YamlConfiguration accountYml = YamlConfiguration.loadConfiguration(accountFile);
        double balance = accountYml.getDouble("balance", 0.0);
        return new Account(id, balance, accountFile, accountYml);
    }
 
}

Code:java

package com.kassestral.plugins.currency;
 
import java.io.File;
import java.io.IOException;
import java.util.UUID;
 
import org.bukkit.configuration.file.YamlConfiguration;
 
public class Account {
 
    private UUID id;
    private Balance balance;
    private File file;
    private YamlConfiguration config;
 
    public Account(UUID id, double amount, File file, YamlConfiguration config) {
        this.id = id;
        this.balance = amount;
        this.file = file;
        this.config = config;
    }
 
    public UUID getId() {
        return this.id;
    }
 
    public double getBalance() {
        return this.balance;
    }
 
    public String formatBalance() {
        return String.format("%.2f", balance);
    }
 
    public Account setBalance(double amount) {
        this.balance = amount;
    }
 
    public Account addBalance(double amount) {
        this.balance = balance + amount;
    }
 
    public Account deductBalance(double amount) {
        this.balance = balance - amount;
    }
 
    public boolean hasBalance(double amount) {
        return balance >= amount;
    }
 
    public boolean save() {
        config.set("balance", formatBalance());
        try {
            config.save(file);
        } catch (IOException ex) {
            ex.printStackTrace();
            return false;
        }
        return true;
    }
 
}