[Added] Functionality for getting data from the database [NOTE: swapping seems to difficult for now, might have to go for a cache approach]

backend/src/main/java/com/ninjaws/quiz/models/QuestionDTO.java

@@ -0,0 +1,55 @@
+package com.ninjaws.quiz.models;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class QuestionDTO {
+
+    private String category;
+    private String difficulty;
+    private String type;
+    private String question;
+    
+    //* Hidden from the user */
+    private String correctAnswer;    
+    private List<String> incorrectAnswers;
+
+    @JsonProperty("answers")
+    public List<String> getAnswers() {
+        List<String> possibleAnswers = new ArrayList<>(incorrectAnswers);
+        possibleAnswers.add(correctAnswer);
+        Collections.shuffle(possibleAnswers);
+        return possibleAnswers;
+    }
+
+    @JsonProperty("correct_answer")
+    public void setCorrectAnswer(String correctAnswer) {
+        this.correctAnswer = correctAnswer;
+    }
+
+    @JsonProperty("incorrect_answers")
+    public void setIncorrectAnswer(List<String> incorrectAnswers) {
+        this.incorrectAnswers = incorrectAnswers;
+    }
+
+    @JsonProperty("correct_answer")
+    @JsonIgnore
+    public String getCorrectAnswer() {
+        return correctAnswer;
+    }
+
+    @JsonProperty("incorrect_answers")
+    @JsonIgnore
+    public List<String> getIncorrectAnswers() {
+        return incorrectAnswers;
+    }
+}