Tell Us What You Know About Iterator Class?

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⟩ Tell us what you know about Iterator class?

A container class hold group of objects and iterator class is used to traverse through the objects maintained by a container class. The iterator class provides access to the classes inside a container. They are objects that point to other objects. Iterator points to one element in a range, and then it is possible to increment it so that it points to the next element.

There are several different types of iterators:

input_iterator

output_iterator

forward_iterator

bidirectional_iterator

random_iterator

reverse_iterator

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Which of the following statements are true about Catch handler?

1.	It must be placed immediately after try block T
2.	It can have multiple parameters
3.	There must be only one catch handler for every try block
4.	There can be multiple catch handler for a try block T
5.	Generic catch handler can be placed anywhere after try block.

a. Only 1, 4, 5	
b. Only 1, 2, 3	
c. Only 1, 4	
d. Only 1, 2

In nested try blocks, there is no need to specify catch handler for inner try block. Outer catch handler is sufficient for the program.

a. True	
b. False

Generic catch handler is represented by ______________.

a. catch(..,)	
b. catch(---)	
c. catch(…)	
d. catch( void x)

Attempting to throw an exception that is not supported by a function call results in calling _____________ library function.

a. indeterminate()	
b. unutilized() 
c. unexpected()	
d. unpredicted()

Throwing an unhandled exception causes standard library function _______________ to be invoked.

a. stop()	
b. aborted()	
c. terminate()	
d. abandon()

How can we restrict a function to throw certain exceptions?

a. Defining multiple try and catch block inside a function
b. Defining generic function within try block
c. Defining function with throw clause
d. It is not possible in CPP to restrict a function

A try block can be nested under another try block - 

a. Yes	
b. No

Return type of uncaught_exception() is________________.

a. int	
b. bool	
c. char *	
d. double

Catch handler can have multiple parameters.

a. True	
b. False

The code of statements which may cause abnormal termination of the program should be written under_________ block.

a. try	
b. catch	
c. Finally	
d. None of these

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