Given: 3. public class TestDays { 4. public enum Days { MON, TUE, WED }; 5. public static void main(String[] args) { 6. for(Days d : Days.values() ) 7. ; 8. Days [] d2 = Days.values(); 9. System.out.println(d2[2]); 10. } 11. } What is the result? (Choose all that apply.)

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  1. TUE

  2. Wed

  3. The output is unpredictable

  4. Compilation fails due to an error on line 4

  5. Compilation fails due to an error on line 6

  6. Compilation fails due to an error on line 8

Show answer
Correct Option: B

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) TUE - This option is incorrect. The output of the program is not TUE.

Option B) Wed - This option is correct. The output of the program is indeed "Wed" because the array d2 is assigned the values of the Days enum using the values() method. The values() method returns an array containing the enum constants in the order they were declared. In this case, the constants are declared as MON, TUE, WED, so d2[2] corresponds to WED.

Option C) The output is unpredictable - This option is incorrect. The output of the program is predictable and will always be "Wed".

Option D) Compilation fails due to an error on line 4 - This option is incorrect. There is no error on line 4. The enum Days is correctly declared and used.

Option E) Compilation fails due to an error on line 6 - This option is incorrect. There is no error on line 6. The for-each loop iterates over the enum constants correctly.

Option F) Compilation fails due to an error on line 8 - This option is incorrect. There is no error on line 8. The Days enum values are correctly assigned to the d2 array.

The correct answer is B) Wed. This option is correct because the program outputs "Wed" due to the assignment of Days enum values to the d2 array.

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