Sec

src/main/java/mathlearning/service/MultipleChoiceGenerator/MultipleChoiceGenerator.java

@@ -32,17 +32,19 @@ public class MultipleChoiceGenerator {
     private void SetChoiceList(){
         for(int i = 0 ; i < this.AnswerList.length ; i++){
             Random random = new Random();
+            String[] choiceNo = {"A.","B.","C.","D."};
             String[] choices = new String[4];
             double correctChoice = Double.parseDouble(this.AnswerList[i]);
             int position = random.nextInt(4);
-            choices[position] = String.format("%.2f", correctChoice);
+            choices[position] = choiceNo[position] +  String.format("%.2f", correctChoice);
+
 
             for(int j = 0 ; j < 4 ; j++){
                 if(j != position){
                     double choice = correctChoice;
                     double offset = random.nextInt(41) - 20;
                     choice += offset;
-                    choices[j] = String.format("%.2f", choice);
+                    choices[j] =choiceNo[j] + String.format("%.2f", choice);
                 }
             }