import java.io.*;
import java.util.*;

public class nim {
   public static void main (String[] args) {
      ArrayList<Question> myList = new ArrayList<Question>();

      myList.add(new Question(new String[] {"Q1", "opA", "opB", "opC", "opD"}, 1));
      myList.add(new Question(new String[] {"Q2", "opA", "opB", "opC", "opD"}, 2));
      myList.add(new Question(new String[] {"Q3", "opA", "opB", "opC", "opD"}, 3));
      
      while(myList.size() > 0) {
         int rndNumber = (int) (Math.random() * myList.size());
         myList.get(rndNumber).Print();
         myList.set(rndNumber, myList.get(myList.size() - 1));
         myList.remove(myList.size() - 1);
      }

   }
}

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import java.io.*;

public class Question {
   String[] m_data;
   int m_answer;
   public Question(String[] data, int answer) {
      m_data = data;
      m_answer = answer;
   }
   
   public void Print() {
      for (int i=0; i<m_data.length; i++)
         System.out.println(m_data[i]);
   }
}

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[stathis@archlinux Desktop]$ javac nim.java Question.java
[stathis@archlinux Desktop]$ java nim
Q2
opA
opB
opC
opD
Q1
opA
opB
opC
opD
Q3
opA
opB
opC
opD
[stathis@archlinux Desktop]$