36. Which of these packages contain all the Java’s built in exceptions?

1. 1. java.net

   
   
   

   2. java.lang

   
   
   

   3. java.util

   
   
   

   4. java.io

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   java.util

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37. Which of these exceptions will be thrown if we use null reference for an arithmetic operation?

1. 1. IllegalAccessException

   
   
   

   2. ArithmeticException

   
   
   

   3. IllegalOperationException

   
   
   

   4. NullPointerException

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   If we use null reference anywhere in the code where the value stored in that reference is used then NullPointerException occurs.

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38. Which of these class is used to create user defined exception?

1. 1. RunTime

   
   
   

   2. java.lang

   
   
   

   3. System

   
   
   

   4. Exception

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Exception class contains all the methods necessary for defining an exception. The class contains the Throwable class.

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39. What is the output of this program?
    

    public class exception_Example 
        {
            public static void main(String args[]) 
            {
                try 
                {
                    int array[] = {1, 2,3 , 4, 5};
                    for (int k = 0; k < 7; ++k) 
                        System.out.print(array[k]);
                }
                catch(ArrayIndexOutOfBoundsException e) 
                {
            	System.out.print("5");        	
                }
            }
        }
    

1. 1. 123455

   
   
   

   2. 123

   
   
   

   3. 12345

   
   
   

   4. 123450

   
   
   

   5. 120345

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   When array index goes out of bound then ArrayIndexOutOfBoundsException exception is thrown by the system.

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40. Which of these classes is used to define exceptions?

1. 1. System

   
   
   

   2. Abstract

   
   
   

   3. Throwable

   
   
   

   4. Exception

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Exception

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