Storing input to array

Question

I am creating this quiz app and I'm having a little bit of trouble in storing the data and loading/displaying it afterwards. I will try to be as detailed as much as I can in explain my questions.

It's supposed to be this way

five text fields
1 for question
4 for choices
after user clicks save
the question will be stored in an array
new questions will be stored in the same array as the old questions

The way I structured the question and answers are like this:

Quiz is their parent
save button is not within quiz

I want to store/save the questions with its choices in an array so i can load them for future use.

EXTRA QUESTION:

Is there a way that I can randomize the order for the answers(when displayed)

For example inputs are

What is 2+2
1
2
3
4

Then it will display

What is 2+2
3
2
4
1

[EDIT]

Below is the class that accepts the user input for the question.

  public class NewQuestion{
 
     public static void getQuestion(string newQuestion)
     {
         Debug.Log("input" + newQuestion);
         string question = newQuestion;
     }
     
 }

Below is one of the classes that accepts the input for the answers.

 public class choiceA : MonoBehaviour
 { 
     public void getAnswerA(string A)
     {
         Debug.Log("input" + A);
         string optionA = A;
     }
 
 }

Below is the class where I am trying to call all the inputs when I click a save button.

  [System.Serializable]
         public class OnClickSave : MonoBehaviour
         {
         
             public string question;
             public string optionA;
             public string optionB;
             public string optionC;
             public string optionD;
         
             public ArrayList[] items;
 }

Answer 1

Thank you for updating your question. It's actually one of the better one's I've seen on this website, it was just a bit difficult to see where you were going. This is only part of the question answered, I'm just posting this here as an update;

 using UnityEngine;
 using System.Collections;
 using System.Runtime.Serialization.Formatters.Binary;
 using System.IO;
 
 [System.Serializable]
 public class Data
 {
     public int questionNumber;
     public string question;
     public string optionA;
     public string optionB;
     public string optionC;
     public string optionD;
 }
 
 public class DataTest : MonoBehaviour
 {
 
     public Data[] inputData;
 
     public Data[] data;
     
     // Update is called once per frame
     void Update ()
     {
         if (Input.GetButtonDown ("Fire1")) {
             data = new Data[inputData.Length];
 
             foreach (Data d in inputData)
                 Save (d, true);
         }
 
         if (Input.GetButtonDown ("Fire2"))
             data = Load ();
     }
 
     void Save (Data d, bool s)
     {
         data[d.questionNumber] = d;
 
         if (s)
         {
             BinaryFormatter bf = new BinaryFormatter();
             FileStream file = File.Create(Application.dataPath + "/data.dat");
             bf.Serialize(file, data);
             file.Close();
         }
     }
 
     Data[] Load ()
     {
         if (File.Exists (Application.dataPath + "/data.dat"))
         {
             BinaryFormatter bf = new BinaryFormatter ();
             FileStream file = File.Open (Application.dataPath + "/data.dat", FileMode.Open);
             Data[] d = (Data[])bf.Deserialize (file);
             file.Close ();
             return d;
         }
         else
         {
             return new Data[1];
         }
     }
 }

This class should allow for the saving and loading of data. The great thing about this is, because we are using a custom class as a serializable container, we can save and load data as that format, meaning we don't have to do type conversions, etc. I'll work on the rest of the question when I have time.

Storing input to array

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