6. Which of these can not be used for a variable name in Java?

1. 1. identifier

   
   
   

   2. identifier & keyword

   
   
   

   3. keyword

   
   
   

   4. None of these

   
   
   

   5. NA

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Keywords are specially reserved words which can not be used for naming a user defined variable, example : class, int, for etc.

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7. Literal can be of which of these data types?

1. 1. float

   
   
   

   2. boolean

   
   
   

   3. integer

   
   
   

   4. all of the mentioned

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Literal can be integer, float and boolean.

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8. Literals in java must be appended by which of these?

1. 1. L

   
   
   

   2. L and I

   
   
   

   3. D

   
   
   

   4. l

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Data type long literals are appended by an upper or lowercase L.

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9. Which of these can be returned by the operator & ?

1. 1. Integer

   
   
   

   2. Integer or Boolean

   
   
   

   3. Character

   
   
   

   4. Boolean

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   We can use binary ampersand operator on integers/chars (and it returns an integer) or on booleans (and it returns a boolean).

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10. Which of these is long data type literal?

1. 1. 99671246

   
   
   

   2. ABCDEFG

   
   
   

   3. 0x99fffa

   
   
   

   4. 0x99fffL

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Data type long literals are appended by an upper or lowercase L. 0x99fffL is hexadecimal long literal.

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