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    <p>I have implemented my own algorithm and it works just perfect, though it has a lot of duplicated codes:</p> <pre><code>public static List&lt;Question&gt; getQuestions(List&lt;Question&gt; availableQuestions, int quizDifficulty, int numberOfQuestion) { if(availableQuestions.size() &lt; numberOfQuestion) throw NotEnoughQuestionsException(); List&lt;Question&gt; questions = new ArrayList&lt;Question&gt;(numberOfQuestion); Map&lt;Integer, List&lt;Question&gt;&gt; map = new HashMap&lt;Integer, List&lt;Question&gt;&gt;(); for(int i = 1; i &lt;= 10; i++) map.put(i, new ArrayList&lt;Question&gt;()); for(Question question : availableQuestions) map.get(question.getDifficulty()).add(question); int L1 = map.get(1).size(); // number of questions with level 1 int L2 = map.get(2).size(); int L3 = map.get(3).size(); int L4 = map.get(4).size(); int L5 = map.get(5).size(); int L6 = map.get(6).size(); int L7 = map.get(7).size(); int L8 = map.get(8).size(); int L9 = map.get(9).size(); int L10 = map.get(10).size(); final int L1_TO_L8 = 0; final int L1_TO_L9 = 1; final int L1_TO_L10 = 2; final int L2_TO_L9 = 3; final int L2_TO_L10 = 4; final int L3_TO_L10 = 5; int status; if(difficulty == 0) // Easy (level 1 to level 8) { int missing = questionsCount - (L1+L2+L3+L4+L5+L6+L7+L8); if(missing &gt; 0) // not enough questions in L1 through L8 { if(missing - L9 &gt; 0) // we must include all the level { status = L1_TO_L10; } else // enough questions in L1 through L9 { status = L1_TO_L9; } } else // enough questions in L1 through L8 { status = L1_TO_L8; } } else if(difficulty == 2) // Hard (level 3 to level 10) { int missing = questionsCount - (L3+L4+L5+L6+L7+L8+L9+L10); if(missing &gt; 0) // not enough questions in L3 through L10 { if(missing - L2 &gt; 0) // we must include all the level { status = L1_TO_L10; } else // enough questions in L2 through L10 { status = L2_TO_L10; } } else // enough questions in L3 through L10 { status = L3_TO_L10; } } else /*if(difficulty == 1)*/ // Normal (level 2 to level 9) { int missing = questionsCount - (L2+L3+L4+L5+L6+L7+L8+L9); if(missing &gt; 0) // not enough questions in L2 through L9 { if(missing - L1 &gt; 0) // we must include all the level { status = L1_TO_L10; } else // enough questions in L1 through L9 { status = L1_TO_L9; } } else // enough questions in L2 through L9 { status = L2_TO_L9; } } if(status == L1_TO_L8) // Look into level 1 through level 8 only { int q = 0; for(int level = 1; level &lt;= 8 &amp;&amp; q &lt; numberOfQuestion; level += 8 * q &lt;= numberOfQuestion * level? 0 : 1) { if(level == 1) { if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} } else if(level == 2) { if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} } else if(level == 3) { if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} } else if(level == 4) { if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} } else if(level == 5) { if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } else if(level == 6) { if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } else if(level == 7) { if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } else if(level == 8) { if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } } } else if(status == L1_TO_L9) { int q = 0; for(int level = 1; level &lt;= 9 &amp;&amp; q &lt; numberOfQuestion; level += 9 * q &lt;= numberOfQuestion * level? 0 : 1) { if(level == 1) { if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 2) { if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 3) { if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 4) { if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 5) { if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 6) { if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } else if(level == 7) { if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } else if(level == 8) { if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } else if(level == 9) { if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 1)){q++; continue;} } } } else if(status == L2_TO_L9) { int q = 0; for(int level = 2; level &lt;= 9 &amp;&amp; q &lt; numberOfQuestion; level += 9 * q &lt;= numberOfQuestion * level? 0 : 1) { if(level == 2) { if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 3) { if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 4) { if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 5) { if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} } else if(level == 6) { if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } else if(level == 7) { if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } else if(level == 8) { if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } else if(level == 9) { if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } } } else if(status == L2_TO_L10) { int q = 0; for(int level = 2; level &lt;= 10 &amp;&amp; q &lt; numberOfQuestion; level += 10 * q &lt;= numberOfQuestion * level? 0 : 1) { if(level == 2) { if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 3) { if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 4) { if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 5) { if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 6) { if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 7) { if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } else if(level == 8) { if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } else if(level == 9) { if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } else if(level == 10) { if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 2)){q++; continue;} } } } else if(status == L3_TO_L10) { int q = 0; for(int level = 3; level &lt;= 10 &amp;&amp; q &lt; numberOfQuestion; level += 10 * q &lt;= numberOfQuestion * level? 0 : 1) { if(level == 3) { if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 4) { if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 5) { if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 6) { if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} } else if(level == 7) { if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} } else if(level == 8) { if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} } else if(level == 9) { if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} } else if(level == 10) { if(check(readyQuestionsList, map, 10)){q++; continue;} if(check(readyQuestionsList, map, 9)){q++; continue;} if(check(readyQuestionsList, map, 8)){q++; continue;} if(check(readyQuestionsList, map, 7)){q++; continue;} if(check(readyQuestionsList, map, 6)){q++; continue;} if(check(readyQuestionsList, map, 5)){q++; continue;} if(check(readyQuestionsList, map, 4)){q++; continue;} if(check(readyQuestionsList, map, 3)){q++; continue;} } } } else /*if(status == L1_TO_L10)*/ { // same idea is implemented here } return questions; } private boolean check(List&lt;Question&gt; readyQuestionsList, Map&lt;Integer, List&lt;Question&gt;&gt; map, int level) { if(map.get(level).size() &gt; 0 &amp;&amp; map.get(level).get(0) != null) { readyQuestionsList.add(map.get(level).remove(0)); return true; } return false; } </code></pre>
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    1. POMake 3 levels of difficulties in a quiz app
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      1. PTQuestion
    1. PTAnswer
    1. USEng.Fouad
    1. USEng.Fouad
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    1. This table or related slice is empty.
    1. POMake 3 levels of difficulties in a quiz app
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      1. PTQuestion
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    1. VO
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      1. PO
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      1. VTModeratorReview
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      1. VTUndeletion
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