implemented the skip btn and that thas the aswer is shown

src/main/java/at/ionas999/questioncatalog/controller/AnswerTextController.java

@@ -1,4 +1,75 @@
 package at.ionas999.questioncatalog.controller;
 
+import at.ionas999.questioncatalog.model.Question;
+import at.ionas999.questioncatalog.model.QuestionCatalog;
+import at.ionas999.questioncatalog.services.QuestionCatalogService;
+import at.ionas999.questioncatalog.services.QuestionService;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.event.ActionEvent;
+import javafx.fxml.FXML;
+import javafx.scene.control.Button;
+import javafx.scene.control.ComboBox;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextArea;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+
 public class AnswerTextController {
+
+    @FXML
+    private ComboBox selectBox;
+    @FXML
+    private Button skipBtn;
+    @FXML
+    private Button showAnswerBtn;
+    @FXML
+    private TextArea textArea;
+    @FXML
+    private Label questionLabel;
+
+    private Question currentQuestion = null;
+    private ObservableList<QuestionCatalog> catalogs;
+    private ArrayList<Question> questions;
+    private int currentIdx = -1;
+    @FXML
+    private void initialize() throws SQLException {
+        this.catalogs = FXCollections.observableList(QuestionCatalogService.GetCatalogsWithoutQuestions());
+        selectBox.setItems(catalogs);
+        addObserverToSelectBox();
+    }
+    private void addObserverToSelectBox() {
+        selectBox.getSelectionModel().selectedItemProperty().addListener((observable, oldValue, newValue) -> {
+            if (newValue == null) {
+                return;
+            }
+
+            try {
+                this.questions = QuestionService.GetQuestionsFromCatalog(((QuestionCatalog) newValue).getId());
+                this.showNextQuestion();
+
+            } catch (SQLException e) {
+                throw new RuntimeException(e);
+            }
+        });
+    }
+
+    private void showNextQuestion()
+    {
+
+        this.currentIdx = ++this.currentIdx >= questions.size() ? 0 : this.currentIdx;
+
+        this.currentQuestion = this.questions.get(this.currentIdx);
+        this.questionLabel.setText(this.currentQuestion.getQuestion());
+    }
+
+    @FXML
+    private void onShowAnwerBtnClick(ActionEvent actionEvent) {
+    }
+
+    @FXML
+    private void onSkipBtnClick(ActionEvent actionEvent) {
+        this.showNextQuestion();
+    }
 }

src/main/resources/at/ionas999/questioncatalog/answerText.fxml

@@ -1,8 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
-<?import java.lang.*?>
-<?import java.util.*?>
-<?import javafx.scene.*?>
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
 
@@ -12,13 +8,15 @@
             fx:controller="at.ionas999.questioncatalog.controller.AnswerTextController">
     <children>
         <VBox spacing="20" alignment="CENTER">
-            <Label text="Here goes your question" style="-fx-font-size: 18;"/>
+            <Label fx:id="questionLabel" text="Here goes your question" style="-fx-font-size: 18;"/>
             <HBox alignment="CENTER">
-                <TextArea promptText="Type your answer here..." prefHeight="100.0" prefWidth="300.0"/>
-            </HBox>
-            <HBox spacing="10" alignment="CENTER">
-                <Button text="Skip"/>
+                <TextArea fx:id="textArea" promptText="Type your answer here..." prefHeight="100.0" prefWidth="300.0"/>
+                <Button text="Skip" fx:id="skipBtn" onAction="#onSkipBtnClick"/>
+                <Button text="Show Answer" fx:id="showAnswerBtn" onAction="#onShowAnwerBtnClick"/>
             </HBox>
         </VBox>
+        <HBox alignment="TOP_RIGHT" spacing="10.0" AnchorPane.topAnchor="10.0" AnchorPane.rightAnchor="10.0">
+            <ComboBox fx:id="selectBox" promptText="Select a Catalog"/>
+        </HBox>
     </children>
 </AnchorPane>