41. Which of the following exceptions is thrown by every method of Runtime class?

1. 1. SystemException

   
   
   

   2. RuntimeException

   
   
   

   3. IOException

   
   
   

   4. SecurityException

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Every method of Runtime class throws SecurityException.

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42. Which of these classes encapsulate runtime environment?

1. 1. System

   
   
   

   2. ClassLoader

   
   
   

   3. Class

   
   
   

   4. Runtime

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Runtime

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43. Which of these is a super class of wrappers Double and Float?

1. 1. Float

   
   
   

   2. Number

   
   
   

   3. Digits

   
   
   

   4. Long

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Number is an abstract class containing subclasses Double, Float, Byte, Short, Integer and Long.

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44. Which of these methods loads the specified dynamic library?

1. 1. library()

   
   
   

   2. loadlibrary()

   
   
   

   3. load()

   
   
   

   4. loadlib()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   load() methods loads the dynamic library whose name is specified.

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45. Which of these methods initiates garbage collection?

1. 1. garbage()

   
   
   

   2. Systemgarbagecollection()

   
   
   

   3. gc()

   
   
   

   4. garbagecollection()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   gc()

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