diff --git a/client/app/src/main/java/main/CreateEventController.java b/client/app/src/main/java/main/CreateEventController.java
index f3923e8..d77c407 100644
--- a/client/app/src/main/java/main/CreateEventController.java
+++ b/client/app/src/main/java/main/CreateEventController.java
@@ -30,7 +30,6 @@ public class CreateEventController {
     public Label labelError;
 
 
-
     public CreateEventController() {
     }
 
@@ -42,7 +41,7 @@ public class CreateEventController {
     @FXML
     protected void createBtnClick(ActionEvent actionEvent) {
         try {
-            if(datePickerDate.getValue() == null){
+            if (datePickerDate.getValue() == null) {
                 throw new IllegalArgumentException("Bitte w\u00e4hle ein Datum aus");
             }
 
@@ -54,7 +53,7 @@ public class CreateEventController {
                     textStart.getText(),
                     textEnd.getText(),
                     datePickerDate.getValue().atStartOfDay(),
-                    (int)DataController.USER_ID
+                    (int) DataController.USER_ID
             );
 
             System.out.println(event.getAsUrlParam());
diff --git a/client/app/src/main/java/main/Launcher.java b/client/app/src/main/java/main/Launcher.java
index fd5d4c8..38c385d 100644
--- a/client/app/src/main/java/main/Launcher.java
+++ b/client/app/src/main/java/main/Launcher.java
@@ -1,7 +1,7 @@
 package main;
 
 public class Launcher {
-    
+
     public static void main(String[] args) {
         MainApplication.main(args);
     }
diff --git a/client/app/src/main/java/main/MainApplication.java b/client/app/src/main/java/main/MainApplication.java
index 2522e16..6efcaa1 100644
--- a/client/app/src/main/java/main/MainApplication.java
+++ b/client/app/src/main/java/main/MainApplication.java
@@ -15,19 +15,21 @@ public class MainApplication extends Application {
         FXMLLoader fxmlLoader = new FXMLLoader(MainApplication.class.getResource("main-view.fxml"));
 
         Scene scene = new Scene(fxmlLoader.load(), 1200, 700);
-        scene.getStylesheets().add(Objects.requireNonNull(MainApplication.class.getResource("main-view.css")).toExternalForm());
+        scene.getStylesheets().add(Objects.requireNonNull(
+                MainApplication.class.getResource("main-view.css")).toExternalForm());
         stage.setTitle("SharePlaner");
         stage.setScene(scene);
 
         FXMLLoader fxmlLoaderLogin = new FXMLLoader(MainApplication.class.getResource("../users/login.fxml"));
         Scene sceneLogin = new Scene(fxmlLoaderLogin.load(), 650, 500);
-        sceneLogin.getStylesheets().add(Objects.requireNonNull(MainApplication.class.getResource("../users/login.css")).toExternalForm());
+        sceneLogin.getStylesheets().add(Objects.requireNonNull(
+                MainApplication.class.getResource("../users/login.css")).toExternalForm());
         Stage stageLogin = new Stage();
         stageLogin.setTitle("Anmelden");
         stageLogin.setScene(sceneLogin);
         stageLogin.showAndWait();
 
-        if(DataController.USER_ID >= 0){
+        if (DataController.USER_ID >= 0) {
             stage.show();
         }
     }
diff --git a/client/app/src/main/java/main/MainController.java b/client/app/src/main/java/main/MainController.java
index cda918d..c7092a7 100644
--- a/client/app/src/main/java/main/MainController.java
+++ b/client/app/src/main/java/main/MainController.java
@@ -73,7 +73,7 @@ public class MainController {
     }
 
     @FXML
-    protected void onTodayClick(){
+    protected void onTodayClick() {
         weekOffset = 0;
         setDates();
         updateEvents();
@@ -89,9 +89,11 @@ public class MainController {
     @FXML
     protected void onAddBtnClick() {
         try {
-            FXMLLoader fxmlLoader = new FXMLLoader(MainApplication.class.getResource("create-event.fxml"));
+            FXMLLoader fxmlLoader = new FXMLLoader(
+                    MainApplication.class.getResource("create-event.fxml"));
             Scene scene = new Scene(fxmlLoader.load(), 650, 650);
-            scene.getStylesheets().add(Objects.requireNonNull(MainApplication.class.getResource("create-event.css")).toExternalForm());
+            scene.getStylesheets().add(Objects.requireNonNull(
+                    MainApplication.class.getResource("create-event.css")).toExternalForm());
             Stage stage = new Stage();
             stage.setTitle("Termin erstellen");
             stage.setScene(scene);
@@ -182,7 +184,8 @@ public class MainController {
 
         LocalDateTime eventDate = event.getDate();
 
-        int day = (int) Duration.between(weekStartDateTime.toLocalDate().atStartOfDay(), eventDate.toLocalDate().atStartOfDay()).toDays();
+        int day = (int) Duration.between(
+                weekStartDateTime.toLocalDate().atStartOfDay(), eventDate.toLocalDate().atStartOfDay()).toDays();
 
         if (day >= 0 && day < 7) {
             dayVBoxes[day].getChildren().add(vBox);
diff --git a/client/app/src/main/java/users/LoginController.java b/client/app/src/main/java/users/LoginController.java
index a8da804..0350460 100644
--- a/client/app/src/main/java/users/LoginController.java
+++ b/client/app/src/main/java/users/LoginController.java
@@ -19,20 +19,20 @@ public class LoginController {
     public Label passErrLabel;
 
     @FXML
-    protected void login(ActionEvent event){
-        if(userField.getText().trim().isEmpty()){
+    protected void login(ActionEvent event) {
+        if (userField.getText().trim().isEmpty()) {
             userErrLabel.setText("Bitte Usernamen eingeben!");
             passErrLabel.setText("");
             return;
         }
-        if(passField.getText().trim().isEmpty()){
+        if (passField.getText().trim().isEmpty()) {
             userErrLabel.setText("");
             passErrLabel.setText("Bitte Passwort eingeben!");
             return;
         }
 
         DataController dataController = new DataController();
-        if(!dataController.login(userField.getText(), passField.getText())){
+        if (!dataController.login(userField.getText(), passField.getText())) {
             userErrLabel.setText("Name und Passwort passen nicht zueinander!");
             passErrLabel.setText("Name und Passwort passen nicht zueinander!");
             return;
diff --git a/client/app/src/main/resources/main/create-event.fxml b/client/app/src/main/resources/main/create-event.fxml
index b3600c8..c56066c 100644
--- a/client/app/src/main/resources/main/create-event.fxml
+++ b/client/app/src/main/resources/main/create-event.fxml
@@ -5,7 +5,8 @@
 
 <?import javafx.collections.FXCollections?>
 <?import java.lang.String?>
-<GridPane xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml/1" fx:controller="main.CreateEventController">
+<GridPane xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml/1"
+          fx:controller="main.CreateEventController">
 
     <columnConstraints>
         <ColumnConstraints/>
@@ -13,16 +14,16 @@
         <ColumnConstraints/>
     </columnConstraints>
     <rowConstraints>
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
     </rowConstraints>
 
     <Label styleClass="mainLabel">Termin anlegen</Label>
@@ -44,9 +45,9 @@
     <ComboBox fx:id="ComboBoxPriotity" GridPane.columnIndex="1" GridPane.rowIndex="6" maxWidth="200" minWidth="200">
         <items>
             <FXCollections fx:factory="observableArrayList">
-                <String fx:value="gering" />
-                <String fx:value="mittel" />
-                <String fx:value="hoch" />
+                <String fx:value="gering"/>
+                <String fx:value="mittel"/>
+                <String fx:value="hoch"/>
             </FXCollections>
         </items>
     </ComboBox>
@@ -54,8 +55,8 @@
     <CheckBox fx:id="checkBoxIsPrivate" GridPane.columnIndex="1" GridPane.rowIndex="8"/>
     <Label fx:id="labelError" GridPane.columnIndex="1" GridPane.rowIndex="9"/>
 
-    <HBox GridPane.columnIndex="1" GridPane.rowIndex="10" GridPane.columnSpan="2"  alignment="CENTER_RIGHT">
-        <Button onAction="#abortBtnClick" maxWidth="150" minWidth="150" >Abbrechen</Button>
+    <HBox GridPane.columnIndex="1" GridPane.rowIndex="10" GridPane.columnSpan="2" alignment="CENTER_RIGHT">
+        <Button onAction="#abortBtnClick" maxWidth="150" minWidth="150">Abbrechen</Button>
         <Button styleClass="mainButton" onAction="#createBtnClick" maxWidth="150" minWidth="150">Anlegen</Button>
     </HBox>
 
diff --git a/client/app/src/main/resources/main/main-view.fxml b/client/app/src/main/resources/main/main-view.fxml
index 31a3e46..aa1402c 100644
--- a/client/app/src/main/resources/main/main-view.fxml
+++ b/client/app/src/main/resources/main/main-view.fxml
@@ -5,15 +5,17 @@
 <?import javafx.scene.image.*?>
 <?import javafx.scene.layout.*?>
 
-<GridPane style="-fx-background-color: #424242;" xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml/1" fx:controller="main.MainController">
+<GridPane style="-fx-background-color: #424242;" xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml/1"
+          fx:controller="main.MainController">
     <columnConstraints>
-        <ColumnConstraints hgrow="NEVER" maxWidth="60.0" minWidth="60.0" />
-        <ColumnConstraints hgrow="ALWAYS" />
+        <ColumnConstraints hgrow="NEVER" maxWidth="60.0" minWidth="60.0"/>
+        <ColumnConstraints hgrow="ALWAYS"/>
     </columnConstraints>
     <rowConstraints>
-        <RowConstraints vgrow="SOMETIMES" />
+        <RowConstraints vgrow="SOMETIMES"/>
     </rowConstraints>
-    <VBox alignment="TOP_CENTER" prefHeight="200.0" prefWidth="100.0" spacing="5.0" style="-fx-background-color: #525E74;">
+    <VBox alignment="TOP_CENTER" prefHeight="200.0" prefWidth="100.0" spacing="5.0"
+          style="-fx-background-color: #525E74;">
         <ImageView fitHeight="50.0" fitWidth="50.0" pickOnBounds="true" preserveRatio="true">
 
         </ImageView>
@@ -29,39 +31,42 @@
     </VBox>
     <GridPane prefHeight="200.0" prefWidth="222.0" GridPane.columnIndex="1" GridPane.rowIndex="0">
         <columnConstraints>
-        <ColumnConstraints hgrow="ALWAYS" />
-            <ColumnConstraints />
-            <ColumnConstraints />
-            <ColumnConstraints />
-            <ColumnConstraints />
+            <ColumnConstraints hgrow="ALWAYS"/>
+            <ColumnConstraints/>
+            <ColumnConstraints/>
+            <ColumnConstraints/>
+            <ColumnConstraints/>
         </columnConstraints>
         <rowConstraints>
-            <RowConstraints />
-            <RowConstraints vgrow="ALWAYS" />
+            <RowConstraints/>
+            <RowConstraints vgrow="ALWAYS"/>
         </rowConstraints>
-        <Label fx:id="LabelMonth" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" styleClass="labelMonth" textFill="WHITE" GridPane.columnIndex="0" GridPane.rowIndex="0">
+        <Label fx:id="LabelMonth" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308"
+               styleClass="labelMonth" textFill="WHITE" GridPane.columnIndex="0" GridPane.rowIndex="0">
             Monat
             <padding>
-                <Insets left="5" />
+                <Insets left="5"/>
             </padding>
         </Label>
         <Button onAction="#onBackClick" GridPane.columnIndex="1" maxHeight="1.7976931348623157E308">zurück</Button>
         <Button onAction="#onTodayClick" GridPane.columnIndex="2" maxHeight="1.7976931348623157E308">heute</Button>
         <Button onAction="#onNextClick" GridPane.columnIndex="3" maxHeight="1.7976931348623157E308">weiter</Button>
 
-        <GridPane fx:id="calendarGrid" gridLinesVisible="true"  styleClass="gridCalendar" GridPane.columnSpan="4" GridPane.columnIndex="0" GridPane.rowIndex="1">
+        <GridPane fx:id="calendarGrid" gridLinesVisible="true" styleClass="gridCalendar" GridPane.columnSpan="4"
+                  GridPane.columnIndex="0" GridPane.rowIndex="1">
             <columnConstraints>
-                <ColumnConstraints hgrow="ALWAYS" maxWidth="14.2857142857" minWidth="14.2857142857" percentWidth="14.2857142857" />
-                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857" />
-                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857" />
-                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857" />
-                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857" />
-                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857" />
-                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857" />
+                <ColumnConstraints hgrow="ALWAYS" maxWidth="14.2857142857" minWidth="14.2857142857"
+                                   percentWidth="14.2857142857"/>
+                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857"/>
+                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857"/>
+                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857"/>
+                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857"/>
+                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857"/>
+                <ColumnConstraints hgrow="ALWAYS" percentWidth="14.2857142857"/>
             </columnConstraints>
             <rowConstraints>
-                <RowConstraints maxHeight="55.0" minHeight="25.0" vgrow="NEVER" />
-                <RowConstraints percentHeight="-Infinity" vgrow="ALWAYS" />
+                <RowConstraints maxHeight="55.0" minHeight="25.0" vgrow="NEVER"/>
+                <RowConstraints percentHeight="-Infinity" vgrow="ALWAYS"/>
             </rowConstraints>
 
         </GridPane>
diff --git a/client/app/src/main/resources/users/login.fxml b/client/app/src/main/resources/users/login.fxml
index 48fd16e..1eddceb 100644
--- a/client/app/src/main/resources/users/login.fxml
+++ b/client/app/src/main/resources/users/login.fxml
@@ -10,20 +10,20 @@
         <ColumnConstraints/>
     </columnConstraints>
     <rowConstraints>
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
-        <RowConstraints vgrow="ALWAYS" />
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
+        <RowConstraints vgrow="ALWAYS"/>
     </rowConstraints>
 
     <Label GridPane.columnIndex="1">Anmelden</Label>
 
     <Label GridPane.rowIndex="1">Username</Label>
-    <TextField GridPane.columnIndex="1" GridPane.rowIndex="1" fx:id="userField" />
+    <TextField GridPane.columnIndex="1" GridPane.rowIndex="1" fx:id="userField"/>
     <Label styleClass="errorLbl" GridPane.columnIndex="2" GridPane.rowIndex="1" fx:id="userErrLabel"/>
 
     <Label GridPane.rowIndex="2">Paswort</Label>
-    <PasswordField GridPane.columnIndex="1" GridPane.rowIndex="2" fx:id="passField" />
+    <PasswordField GridPane.columnIndex="1" GridPane.rowIndex="2" fx:id="passField"/>
     <Label styleClass="errorLbl" GridPane.columnIndex="2" GridPane.rowIndex="2" fx:id="passErrLabel"/>
 
     <Button onAction="#abortBtnClick" GridPane.columnIndex="1" GridPane.rowIndex="3">Beenden</Button>
diff --git a/client/data/src/main/java/res/DataController.java b/client/data/src/main/java/res/DataController.java
index 88566b6..3492acd 100644
--- a/client/data/src/main/java/res/DataController.java
+++ b/client/data/src/main/java/res/DataController.java
@@ -24,16 +24,16 @@ public class DataController {
 
     private final HttpRequest httpRequest;
 
-    public DataController(){
+    public DataController() {
         httpRequest = new HttpRequest();
     }
 
-    public boolean login(String username, String password){
+    public boolean login(String username, String password) {
         try {
             USER_ID = Long.parseLong(httpRequest.sendPostRequest(
                     LOGIN_ENDPOINT,
                     "login=" + username
-                    + "&password=" + password
+                            + "&password=" + password
             ));
         } catch (Exception e) {
             e.printStackTrace();
@@ -42,7 +42,7 @@ public class DataController {
         return USER_ID >= 0;
     }
 
-    public void createEvent(Event event){
+    public void createEvent(Event event) {
         try {
             System.out.println(httpRequest.sendPostRequest(ADD_EVENT_ENDPOINT, event.getAsUrlParam()));
         } catch (Exception e) {
@@ -50,7 +50,7 @@ public class DataController {
         }
     }
 
-    public void deleteEvent(int eventId){
+    public void deleteEvent(int eventId) {
         try {
             System.out.println(httpRequest.sendPostRequest(DELETE_EVENT_ENDPOINT, "eventId=" + eventId));
         } catch (Exception e) {
@@ -68,10 +68,10 @@ public class DataController {
             ObjectMapper objectMapper = new ObjectMapper();
             //String json = "{ \"color\" : \"Black\", \"type\" : \"BMW\" }";
 
-            for (Object obj : objectMapper.readValue(jsonResponse, Object[].class)){
+            for (Object obj : objectMapper.readValue(jsonResponse, Object[].class)) {
                 ArrayList<Object> list = new ArrayList<>();
                 if (obj.getClass().isArray()) {
-                    list = (ArrayList<Object>) Arrays.asList((Object[])obj);
+                    list = (ArrayList<Object>) Arrays.asList((Object[]) obj);
                 } else if (obj instanceof Collection) {
                     list = new ArrayList<>((Collection<?>) obj);
                 }
diff --git a/client/data/src/main/java/res/Event.java b/client/data/src/main/java/res/Event.java
index be598c2..54ac5e5 100644
--- a/client/data/src/main/java/res/Event.java
+++ b/client/data/src/main/java/res/Event.java
@@ -66,20 +66,21 @@ public class Event {
                  String end,
                  LocalDateTime date,
                  int ownerId
-    ) throws IllegalArgumentException{
-        if(name.length() < 3){
+    ) throws IllegalArgumentException {
+        if (name.length() < 3) {
             throw new IllegalArgumentException("Der Name muss eine L\u00e4nge von 3 haben.");
         }
         Pattern pattern = Pattern.compile("[A-Za-zÄÖÜäöü0-9 =!?+*/$%€.:,;_<>()-]*");
         Matcher matcher = pattern.matcher(name);
-        if(!matcher.matches()){
-            throw new IllegalArgumentException("Der Name Darf nur aus Zahlen, Buchstaben und folgenden Sonderzeichen bestehen: =!?+*/$%€.:,;_ <>()-");
+        if (!matcher.matches()) {
+            throw new IllegalArgumentException("Der Name Darf nur aus Zahlen, Buchstaben und " +
+                    "folgenden Sonderzeichen bestehen: =!?+*/$%€.:,;_ <>()-");
         }
-        if(priority < 0){
+        if (priority < 0) {
             throw new IllegalArgumentException("Bitte eine Priorit\u00e4t w\u00e4hlen.");
         }
         LocalDateTime today = LocalDateTime.now().toLocalDate().atStartOfDay();
-        if(Duration.between(today, date).isNegative()){
+        if (Duration.between(today, date).isNegative()) {
             throw new IllegalArgumentException("Das Datum muss in der Zukunft liegen.");
         }
 
diff --git a/client/data/src/main/java/res/HttpRequest.java b/client/data/src/main/java/res/HttpRequest.java
index 183efb8..c565e31 100644
--- a/client/data/src/main/java/res/HttpRequest.java
+++ b/client/data/src/main/java/res/HttpRequest.java
@@ -9,7 +9,7 @@ import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 
 public class HttpRequest {
-    public String sendPostRequest(String urlString, String urlParameters) throws Exception{
+    public String sendPostRequest(String urlString, String urlParameters) throws Exception {
         byte[] postData = urlParameters.getBytes(StandardCharsets.UTF_8);
         int postDataLength = postData.length;
 
@@ -46,7 +46,7 @@ public class HttpRequest {
         }
     }
 
-    public String sendGetRequest(String urlString) throws Exception{
+    public String sendGetRequest(String urlString) throws Exception {
         URL url = new URL(urlString);
         HttpURLConnection con = (HttpURLConnection) url.openConnection();
         con.setRequestMethod("GET");