added icon

src/me/teridax/jcash/Main.java

@@ -1,11 +1,15 @@
 package me.teridax.jcash;
 
+import me.teridax.jcash.gui.IconProvider;
 import me.teridax.jcash.gui.Loader;
 import me.teridax.jcash.gui.account.AccountController;
 import me.teridax.jcash.gui.login.LoginController;
 import me.teridax.jcash.lang.Locales;
 
+import javax.imageio.ImageIO;
 import javax.swing.*;
+import java.awt.*;
+import java.io.IOException;
 import java.util.Objects;
 import java.util.logging.*;
 
@@ -33,6 +37,7 @@ public final class Main {
         this.window.setTitle(translate("Cashmachine"));
         this.window.setLocationByPlatform(true);
         this.window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        this.window.setIconImage(IconProvider.getWindowIcon());
     }
 
     public static void main(String[] args) {
@@ -152,4 +157,8 @@ public final class Main {
         window.setContentPane(new JLabel(translate("you're logged out")));
         window.setVisible(false);
     }
+
+    public JFrame getWindow() {
+        return this.window;
+    }
 }

src/me/teridax/jcash/gui/IconProvider.java

@@ -0,0 +1,30 @@
+package me.teridax.jcash.gui;
+
+import me.teridax.jcash.Main;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.util.Objects;
+
+import static me.teridax.jcash.Logging.LOGGER;
+
+public class IconProvider {
+
+    private static final Image DEFAULT_IMAGE = new BufferedImage(256, 256, BufferedImage.TYPE_INT_RGB);
+
+    public static Image getWindowIcon() {
+        return loadIcon("res/register.png");
+    }
+
+    private static Image loadIcon(String path) {
+        try {
+            var is = Objects.requireNonNull(IconProvider.class.getResourceAsStream(path));
+            return ImageIO.read(is);
+        } catch (Exception e) {
+            LOGGER.severe("Unable to load icon " + path + " because: " + e.getMessage());
+        }
+
+        return DEFAULT_IMAGE;
+    }
+}

src/me/teridax/jcash/gui/Loader.java

@@ -1,6 +1,7 @@
 package me.teridax.jcash.gui;
 
 import me.teridax.jcash.Logging;
+import me.teridax.jcash.Main;
 import me.teridax.jcash.banking.management.BankingManagementSystem;
 
 import javax.swing.*;
@@ -35,7 +36,7 @@ public class Loader {
         fileChooser.setDialogType(JFileChooser.OPEN_DIALOG);
         fileChooser.setAcceptAllFileFilterUsed(false);
 
-        if (fileChooser.showDialog(null, translate("Load database")) == APPROVE_OPTION) {
+        if (fileChooser.showDialog(Main.getInstance().getWindow(), translate("Load database")) == APPROVE_OPTION) {
             // parse file content
             try {
                 return BankingManagementSystem.loadFromCsv(fileChooser.getSelectedFile().toPath());

src/me/teridax/jcash/gui/account/AccountView.java

@@ -51,7 +51,7 @@ public class AccountView extends JPanel {
 
         this.balance.setText(StringDecoder.LOCAL_NUMBER_FORMAT.format(account.getBalance()) + " €");
 
-        this.type.setText(account.getClass().getSimpleName());
+        this.type.setText(translate(account.getClass().getSimpleName()));
         if (account instanceof CurrentAccount) {;
             this.typeSpecialLabel.setText(translate("Overdraft"));
             this.typeSpecialProperty.setText( StringDecoder.LOCAL_NUMBER_FORMAT.format(((CurrentAccount) account).getOverdraft()) + " €");

src/me/teridax/jcash/gui/res/image-sources.md

@@ -0,0 +1,2 @@
+https://pixabay.com/vectors/register-cash-register-modern-23666/
+![register](https://cdn.pixabay.com/photo/2012/04/01/17/34/register-23666_960_720.png)

src/me/teridax/jcash/gui/takeoff/TakeoffDialog.java

@@ -1,6 +1,7 @@
 package me.teridax.jcash.gui.takeoff;
 
 import me.teridax.jcash.Logging;
+import me.teridax.jcash.Main;
 import me.teridax.jcash.banking.accounts.Account;
 
 import static javax.swing.JOptionPane.ERROR_MESSAGE;
@@ -31,7 +32,7 @@ public class TakeoffDialog {
             view.dispose();
         } catch (IllegalArgumentException ex) {
             Logging.LOGGER.severe("Could not take off money: " + ex.getMessage());
-            showMessageDialog(null, "Reason: " + ex.getMessage(), translate("Could not take off money"), ERROR_MESSAGE);
+            showMessageDialog(Main.getInstance().getWindow(), "Reason: " + ex.getMessage(), translate("Could not take off money"), ERROR_MESSAGE);
         }
     }
 }

src/me/teridax/jcash/gui/transfer/TransferDialog.java

@@ -1,6 +1,7 @@
 package me.teridax.jcash.gui.transfer;
 
 import me.teridax.jcash.Logging;
+import me.teridax.jcash.Main;
 import me.teridax.jcash.banking.accounts.Account;
 import me.teridax.jcash.banking.management.BankingManagementSystem;
 
@@ -39,7 +40,7 @@ public class TransferDialog {
             this.transferView.dispose();
         } catch (IllegalArgumentException ex) {
             Logging.LOGGER.severe("Could not transfer: " + ex.getMessage());
-            showMessageDialog(null, translate("Invalid account"), translate("Could not transfer"), ERROR_MESSAGE);
+            showMessageDialog(Main.getInstance().getWindow(), translate("Invalid account"), translate("Could not transfer"), ERROR_MESSAGE);
         }
     }
 }

src/me/teridax/jcash/lang/languages.csv

@@ -14,8 +14,8 @@ PLZ,PLZ,PLZ,NPA,邮政编码
 City,Ort,Ubicación,Ville,城市
 Password,Passwort,contraseña,Mot de passe,密码
 Login,Anmelden,Inicio de sesión,S'inscrire,登录
-Current account,Girokonto,Cuenta corriente,Compte courant,活期账户
+CurrentAccount,Girokonto,Cuenta corriente,Compte courant,活期账户
-Savings account,Sparkonto,Cuenta de ahorro,Compte d'épargne,储蓄账户
+SavingsAccount,Sparkonto,Cuenta de ahorro,Compte d'épargne,储蓄账户
 Address,Adresse,Dirección,Adresse,地址
 Logout,Abmelden,desconectarse,Se désinscrire,退出登录
 Transfer,Überweisen,transferencia,Virement bancaire,转账