initial GUI

src/main/java/de/hs_mannheim/ui/Main.java

@@ -1,6 +1,50 @@
 package de.hs_mannheim.ui;
 
-public class Main {
+import de.hs_mannheim.facade.Application;
+
+import java.awt.*;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+
+public class Main extends JFrame {
+
     public static void main(String[] args) {
+
     }
-}
+
+    private Application facade;
+
+    private JFrame jframe;
+    private CardLayout cardLayout;
+    private JPanel panelLayout;
+
+    private JPanel logRegScreen;
+    private JButton loginButton;
+    private JButton registerButton;
+
+    private JPanel loginScreen;
+    private JPanel loginName;
+    private JPanel loginPassword;
+    private JButton loginConfirmButton;
+
+    private JPanel registerScreen; // Backend muss PLZ und Ort prüfen, sonst kann die Entfernung in Zukunft nicht
+    // berechnet werden
+    private JPanel registerName;
+    private JPanel registerPassword;
+    private JPanel registerOrt;
+    private JPanel registerPLZ;
+    private JPanel registerCarSpeed;
+    private JPanel registerBikeSpeed;
+    private JButton registerConfirmButton;
+    private JLabel errorMessage; // mal gucken, vllt auch nicht
+
+    private JPanel menu;
+    private JPanel searchPLZ;
+    private JPanel searchOrt;
+    private JButton searchConfirmButton;
+    private JButton threeRandomDestinationsButton;
+    private JButton logOutButton;
+}
+