11. If we try to add Enum constants to a TreeSet, what sorting order will it use?
    

1. 1. Sorted in alphabetical order of Enums
      

   
   
   

   2. Sorted in the order of declaration of Enums

   
   
   

   3. Sorted based on order() method

   
   
   

   4. Sorted in descending order of names of Enums

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Tree Set will sort the values in the order in which Enum constants are declared.

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12. What will ordinal() method provide?
    

    
    enum Season {
            WINTER, SPRING, SUMMER, FALL
        };
        System.out.println(Season.WINTER.ordinal());
    

1. 1. 1

   
   
   

   2. 0

   
   
   

   3. 3

   
   
   

   4. 2

   
   
   

   5. -1

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   ordinal() method provides number to the variables defined in Enum.

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13. Can we create instance of Enum outside of Enum itself?
    

1. 1. False

   
   
   

   2. 1

   
   
   

   3. True
      

   
   
   

   4. 0

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   Enum does not have public constructor.

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14. What is the order of variables in Enum?
    

1. 1. Descending order

   
   
   

   2. Random order

   
   
   

   3. depends on the order() method

   
   
   

   4. Ascending order

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   The compareTo() method is implemented to order the variable in ascending order.

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15. What is the numerical range of a char data type in Java?
    

1. 1. -128 to 127
      

   
   
   

   2. 0 to 256

   
   
   

   3. 0 to 65535

   
   
   

   4. 0 to 32767

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Char occupies 16-bit in memory, so it supports 2^16 i:e from 0 to 65535.

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