diff --git a/src/main/java/com/example/vpr_javafx/Data.java b/src/main/java/com/example/vpr_javafx/Data.java
new file mode 100644
index 0000000..5b3dc5b
--- /dev/null
+++ b/src/main/java/com/example/vpr_javafx/Data.java
@@ -0,0 +1,364 @@
+package com.example.vpr_javafx;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * Data is a class to edit files.
+ *
+ * @author Madeleine Vigier
+ * @version 1.3
+ */
+public class Data {
+    private String pathRead;
+
+    public Data(String pathRead) {
+        this.pathRead = pathRead;
+    }
+
+    /**
+     * readUser() is a method to split user.txt into lines and save them in an arraylist
+     *
+     * @return Arraylist userList
+     * @author Madeleine Vigier, Sabine Gubitz
+     */
+    public ArrayList<com.example.vpr_javafx.User> readUser() {
+        List<String> rows = getRows();
+        ArrayList<com.example.vpr_javafx.User> userList = new ArrayList<>();
+
+        for (String row : rows) {
+            String[] parts = row.split(";");
+
+            String nameParent1 = parts[0];
+            String nameParent2 = parts[1];
+            String billAddress = parts[2];
+            String phonenumber = parts[3];
+            String nameChildren = parts[4];
+            String password = parts[5];
+            userList.add(new com.example.vpr_javafx.User(nameParent1, nameParent2, billAddress, phonenumber, nameChildren, password));
+        }
+        return userList;
+
+    }
+
+
+    /**
+     * readMenue() is a method to split menue.txt into lines and save them in an arraylist
+     *
+     * @return Arraylist menuelist
+     * @author Madeleine Vigier, Sabine Gubitz
+     */
+    public ArrayList<com.example.vpr_javafx.Menu> readMenu() {
+
+        List<String> rows = getRows();
+        ArrayList<com.example.vpr_javafx.Menu> menuList = new ArrayList<>();
+
+
+        for (String row : rows) {
+
+            String[] parts = row.split(";");
+
+
+            String date = parts[0];
+            String dish = parts[1];
+            String sideDish = parts[2];
+            String typ = parts[3];
+            String ingredient = parts[4];
+
+            List<String> ingredients = new ArrayList<>();
+
+            if (!ingredient.isEmpty()) {
+                ingredients.add("a"); //eggs
+            }
+
+            ingredient = parts[5];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("d"); //peanuts
+            }
+            ingredient = parts[6];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("m"); //fish
+            }
+            ingredient = parts[7];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("g"); //grains
+            }
+            ingredient = parts[8];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("f"); //crustaceans
+            }
+            ingredient = parts[9];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("n"); //lupines
+            }
+            ingredient = parts[10];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("c"); //milk
+            }
+            ingredient = parts[11];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("k"); //nuts
+            }
+            ingredient = parts[12];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("j"); //sulfurDioxideAndSulfite
+            }
+            ingredient = parts[13];
+
+            if (!ingredient.isEmpty()) {
+                ingredients.add("l"); //celeriac
+            }
+            ingredient = parts[14];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("h"); //mustards
+            }
+            ingredient = parts[15];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("i"); //sesame
+            }
+            ingredient = parts[16];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("b");//soy
+            }
+            ingredient = parts[17];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("e");//molluscs
+            }
+            ingredient = parts[18];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("4"); //antioxidant
+            }
+            ingredient = parts[19];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("5");
+            }
+            ingredient = parts[20];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("6"); //flavourEnhancer
+            }
+            ingredient = parts[21];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("8"); // preservatives
+            }
+            ingredient = parts[22];
+
+            if (!ingredient.isEmpty()) {
+                ingredients.add("3"); //nitrate
+            }
+            ingredient = parts[23];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("1");//picklingSalt
+            }
+            ingredient = parts[24];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("7"); //artificialSweetener
+            }
+            ingredient = parts[25];
+            if (!ingredient.isEmpty()) {
+                ingredients.add("2"); //phosphate
+
+            }
+            String end = parts[26]; //endpoint
+
+            menuList.add(new com.example.vpr_javafx.Menu(date, dish, sideDish, typ, ingredients));
+        }
+        return menuList;
+    }
+
+
+    /**
+     * readOrder() is a method to split order.txt into lines and save them in an arraylist
+     *
+     * @return Arraylist orderlist
+     * @author Madeleine Vigier, Sabine Gubitz
+     */
+    public ArrayList<com.example.vpr_javafx.Order> readOrder() {
+
+        ArrayList<com.example.vpr_javafx.Order> orderList = new ArrayList<>();
+        List<String> rows = getRows();
+
+        for (String row : rows) {
+            String[] parts = row.split(";");
+
+            String date = parts[0];
+            String user = parts[1];
+            String mealtype = parts[3];
+            String deserttype = parts[5];
+            orderList.add(new com.example.vpr_javafx.Order(date, user, mealtype, deserttype));
+        }
+        return null;//orderList
+
+    }
+
+    /**
+     * The method writeData writes the data of a List into a txt file.
+     *
+     * @author Felix Wöstemeyer
+     *
+     * @param pathWrite   determines the filename of the file that will be written
+     * @param listToWrite determines which ArrayList is to be used for writing the file
+     */
+    public void writeData(String pathWrite, ArrayList<String> listToWrite) {
+        try {
+            if (new File(pathWrite).exists()) {
+                for (String zeile : listToWrite) {
+                    new FileWriter(pathWrite).write(zeile);
+                }
+            }else
+            {
+                Scanner scanner = new Scanner(System.in);
+                System.out.println("Der Pfad oder die  Datei "+ pathWrite +" existiert nicht!\nMöchten Sie unter dem Pfad "+ pathWrite+ " eine neue Datei erstellen? (Y/N)");
+                if(scanner.nextLine().equals("Y")){
+                    new File(pathWrite).createNewFile();
+                    System.out.println("Die Datei "+ pathWrite+" wurde erfolgreich erstellt");
+                }else if(!scanner.nextLine().equals("N") && !scanner.nextLine().equals("Y")){
+                    System.out.println("Es ist ein Fehler mit ihrer Antwort aufgetreten!");
+                }
+            }
+        }catch(IOException e){
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * The method gets the rows by reading all lines of the path
+     *
+     * @return ArrayList rows
+     * @author Madeleine Vigier
+     */
+    private List<String> getRows() {
+        Path path = Paths.get(pathRead);
+        List<String> rows = new ArrayList<>();
+        try {
+            rows = Files.readAllLines(path);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return rows;
+    }
+
+    /**
+     * The method validates the user input
+     *
+     * @return boolean inputValid
+     * @author Kevin Maier
+     */
+    private boolean validateData(String password, String phoneNumber)
+    {
+        boolean inputValid = false;
+        boolean phoneNumberMatchFound;
+        boolean passwordMatchFound;
+        boolean phoneNumberValid = false;
+        boolean passwordValid = false;
+
+        Pattern phoneNumberPattern = Pattern.compile("[0-9]*");
+        Pattern passwordPattern = Pattern.compile("^(?=.*[A-Za-z])(?=.*\\d)[A-Za-z\\d]{8,}$");
+
+        Scanner reader = new Scanner(System.in);
+
+        while(password.isEmpty() || phoneNumber.isEmpty())
+        {
+            System.out.println("Login fehlgeschlagen. Eingabe ist leer, versuchen Sie es erneut.");
+            System.out.println("");
+            System.out.print("Telefonnummer: ");
+            phoneNumber = reader.nextLine();
+            System.out.print("Passwort: ");
+            password = reader.nextLine();
+        }
+
+        Matcher phoneNumberMatcher = phoneNumberPattern.matcher(phoneNumber);
+        Matcher passwordMatcher = passwordPattern.matcher(password);
+
+        phoneNumberMatchFound = phoneNumberMatcher.find();
+        passwordMatchFound = passwordMatcher.find();
+
+        while (!inputValid) {
+            if (!phoneNumberMatchFound || phoneNumber.length() != 15) {
+                System.out.println("Login fehlgeschlagen. Die eingegebene Handynummer ist nicht valide.");
+                System.out.println("");
+                System.out.print("Telefonnummer: ");
+                phoneNumber = reader.nextLine();
+                System.out.print("Passwort: ");
+                password = reader.nextLine();
+            } else {
+                phoneNumberValid = true;
+            }
+
+            if (!passwordMatchFound || password.length() < 6 || password.length() > 20) {
+                System.out.println("Login fehlgeschlagen. Das eingegebene Passwort ist nicht valide.");
+                System.out.println("");
+                System.out.print("Telefonnummer: ");
+                phoneNumber = reader.nextLine();
+                System.out.print("Passwort: ");
+                password = reader.nextLine();
+            } else {
+                passwordValid = true;
+            }
+
+            if (phoneNumberValid && passwordValid) {
+                inputValid = true;
+            }
+        }
+        return inputValid;
+    }
+
+    /**
+     * The method changes the orders.txt file by removing canceled orders
+     *
+     * @return ArrayList\<Order> changedOrderList
+     * @author Felix Düsterhaus
+     */
+
+    public ArrayList<com.example.vpr_javafx.Order> changeOrder(String userLogin) {
+
+        /*
+        File orderFile = new File("C:/Unterricht/VPR/orders.txt");
+        if (orderFile.delete()) {
+            System.out.println("Datei gelöscht: " + orderFile.getName());
+        } else {
+            System.out.println("Fehler, " + orderFile.getName() + " nicht gelöscht.");
+        }
+        */
+
+        ArrayList<com.example.vpr_javafx.Order> changedOrderList = new ArrayList<>();
+        List<String> rows = getRows();
+        int changedEntries = 0;
+
+        for (String row : rows) {
+            String[] parts = row.split(";");
+
+            String date = parts[0];
+            String user = parts[1];
+            String mealtyp = parts[2];
+            String deserttyp = parts[3];
+            if(!userLogin.equals(user)) {
+                changedOrderList.add(new com.example.vpr_javafx.Order(date, user, mealtyp, deserttyp));
+            } else {
+                changedEntries++;
+            }
+        }
+
+        try {
+            FileWriter writer = new FileWriter("orders2.txt");
+            for(com.example.vpr_javafx.Order str: changedOrderList) {
+                writer.write(str + System.lineSeparator());
+            }
+            writer.close();
+            System.out.println("Daten gelöscht");
+            System.out.println(changedEntries + " Einträge entfernt.");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return changedOrderList;
+    }
+}
+
diff --git a/src/main/java/com/example/vpr_javafx/LoginDatei.java b/src/main/java/com/example/vpr_javafx/LoginDatei.java
new file mode 100644
index 0000000..50ca177
--- /dev/null
+++ b/src/main/java/com/example/vpr_javafx/LoginDatei.java
@@ -0,0 +1,42 @@
+package com.example.vpr_javafx;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.HashMap;
+import java.util.List;
+
+public class LoginDatei
+{
+    private final String dateiname;
+
+    public LoginDatei(String dateiname)
+    {
+        this.dateiname = dateiname;
+    }
+
+    public HashMap<String, String> readFile()
+    {
+        try {
+            List<String> lines = Files.readAllLines(Paths.get(dateiname));
+
+            HashMap<String, String> user = new HashMap<>();
+
+            for (int i = 0; i < lines.size(); i++)
+            {
+                String[] parts = lines.get(i).split(";");
+
+                String phoneNumber = parts[3];
+                String password = parts[5];
+
+                user.put(phoneNumber, password);
+            }
+
+            return user;
+
+        } catch (IOException e) {
+            e.printStackTrace();
+            return new HashMap<>();
+        }
+    }
+}
diff --git a/src/main/java/com/example/vpr_javafx/Menu.java b/src/main/java/com/example/vpr_javafx/Menu.java
new file mode 100644
index 0000000..5fe5db1
--- /dev/null
+++ b/src/main/java/com/example/vpr_javafx/Menu.java
@@ -0,0 +1,73 @@
+package com.example.vpr_javafx;
+
+import java.util.List;
+
+/**
+ * Menu is a class to built a menu
+ *
+ * @author Madeleine Vigier
+ * @version 1.1
+ */
+public class Menu {
+    String date;
+    String dish;
+    String sideDish;
+    String type;
+    List<String> ingredients;
+
+
+    /**
+     * constructor
+     *
+     * @param date        date of meal
+     * @param dish        meal
+     * @param sideDish    side dish
+     * @param type        vegan, vegetarian or meat
+     * @param ingredients list of ingredients
+     */
+    public Menu(String date, String dish, String sideDish, String type, List<String> ingredients) {
+        this.date = date;
+        this.dish = dish;
+        this.sideDish = sideDish;
+        this.type = type;
+        this.ingredients = ingredients;
+    }
+
+    /**
+     * The method get Date() gets the date
+     *
+     * @return date
+     * @author Madeleine Vigier
+     */
+    public String getDate() {
+        return date;
+    }
+
+    /**
+     * The method getTyp() gets the typ of the meal
+     *
+     * @return typ e.g. Vegan
+     * @author Madeleine Vigier
+     */
+    public String getType() {
+        if (type.contains("DessertV") || type.contains("Dessert")) {
+            return "";
+        } else {
+
+            return type;
+        }
+    }
+
+
+    /**
+     * The method toString() returns a String formated to save in a File
+     *
+     * @return a String with dish, sideDish, list of ingredients and the typ of the menu
+     * @author Madeleine Vigier, Felix Wöstemeyer
+     */
+    @Override
+    public String toString() {
+        return date+";"+dish+";"+sideDish+";"+type+";"+ingredients;
+    }
+}
+
diff --git a/src/main/java/com/example/vpr_javafx/Order.java b/src/main/java/com/example/vpr_javafx/Order.java
new file mode 100644
index 0000000..1775a2e
--- /dev/null
+++ b/src/main/java/com/example/vpr_javafx/Order.java
@@ -0,0 +1,28 @@
+package com.example.vpr_javafx;
+
+/**
+ * The class Order is an object class that holds the constructor for order objects.
+ *
+ * @author Sabine Gubitz
+ * @version 1.2
+ */
+
+public class Order {
+    String date; //date for the meal, not the day it was ordered
+    String user; //phone number of the user account
+    String mealtype; //meat, vegi or vegan
+    String desserttype; //desert or vegan desert
+
+    Order(String date, String user, String mealtype, String desserttype)
+    {
+        this.date = date;
+        this.user = user;
+        this.mealtype = mealtype;
+        this.desserttype = desserttype;
+    }
+
+    @Override
+    public String toString(){
+        return date+";"+user+";"+mealtype+";"+desserttype;
+    }
+}
diff --git a/src/main/java/com/example/vpr_javafx/User.java b/src/main/java/com/example/vpr_javafx/User.java
new file mode 100644
index 0000000..50da10a
--- /dev/null
+++ b/src/main/java/com/example/vpr_javafx/User.java
@@ -0,0 +1,87 @@
+package com.example.vpr_javafx;
+
+/**
+ * User class creates User Objects
+ *
+ * @author Madeleine Vigier
+ * @version 1.2
+ */
+public class User {
+    private String nameParent1;
+    private String nameParent2;
+    private String billAddress;
+    private String phoneNumber;
+    private String nameChildren;
+    private String password;
+
+    /**
+     * constructor
+     *
+     * @param nameParent1 name of the first parent of the child
+     * @param nameParent2 name of the second parent of the child
+     * @param billAddress the address the bill should be sent to
+     * @param phoneNumber phonenumber of one of the parents and also the username
+     * @param nameChildren name of the children
+     * @param password password of the user
+     * @author Madeleine Vigier
+     */
+    public User(String nameParent1, String nameParent2, String billAddress, String phoneNumber, String nameChildren, String password) {
+        this.nameParent1 = nameParent1;
+        this.nameParent2 = nameParent2;
+        this.billAddress = billAddress;
+        this.phoneNumber = phoneNumber;
+        this.nameChildren = nameChildren;
+        this.password = password;
+    }
+
+    /**
+     * the method getPhonenumber() gets the Phonenumber
+     *
+     * @return Phonenumber
+     * @author Madeleine Vigier
+     */
+    public String getPhonenumber() {
+        return phoneNumber;
+    }
+
+    /**
+     * the method getPassword() gets the password
+     *
+     * @return password
+     * @author Madeleine Vigier
+     */
+    public String getPassword() {
+        return password;
+    }
+
+    /**
+     * the method getNameParent1() gets nameParent1
+     *
+     * @return nameParent1
+     * @author Madeleine Vigier
+     */
+    public String getNameParent1() {
+        return nameParent1;
+    }
+
+    /**
+     * the method getNameParent2() gets nameParent2
+     *
+     * @return nameParent2
+     * @author Madeleine Vigier
+     */
+    public String getNameParent2() {
+        return nameParent2;
+    }
+
+    /**
+     * the methode toString() returns a String representation of an object
+     *
+     * @return a String with nameParent1, nameparent2, billAdress, phonenumber, nameChildren, password
+     * @author Madeleine Vigier
+     */
+    @Override
+    public String toString() {
+        return nameParent1 + ";" + nameParent2 + ";" + billAddress + ";" + phoneNumber + ";" + nameChildren + ";" + password;
+    }
+}