Question

1.

The foreach construct provides an elegant mechanism that simplifies the code you need to write, but it can be used only under certain conditions—you can use foreach only to step through an __________ collection.

2.

The collection type in a foreach repetition statement represents _________.

	a.	the counter used for iteration
	b.	the reference used for iteration
	c.	an array or collection through which to iterate
	d.	the guard condition

3.

Variables can be initialized __________.

	a.	when they are declared
	b.	to their default values
	c.	in a constructor
	d.	All of the above

4.

To remove a value from a specific index in the ArrayList, use the _____ method.

	a.	Remove
	b.	Delete
	c.	RemoveAt
	d.	DeleteAt

5.

Which one of the following is not a feature of lambda expressions:

	a.	The body of a lambda expression can be a simple expression.
	b.	Lambda expressions can return values, but the return type must match that of the delegates they are being added to.
	c.	Variables defined in a lambda expression method do not go out of scope when the method finishes.
	d.	A lambda expression can access and modify all variables outside the lambda expression that are in scope when the lambda expression is defined.

Answer 1

Dear Student ,

As per the requirement submitted above , kindly find the below solution.

Question 1:

Answer :enumerable

Explanation :The foreach construct provides an elegant mechanism that simplifies the code you need to write, but it can be used only under certain conditions—you can use foreach only to step through an enumerable collection.

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Question 2:

Answer :c.an array or collection through which to iterate

Explanation :The collection type in a foreach repetition statement represents an array or collection through which to iterate.

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Question 3:

Answer :d.All of the above

Explanation :Variables can be initialized when they are declared or in the constructor or to their default values.

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Question 4:

Answer :c.RemoveAt

Explanation :RemoveAt() method is used to remove a value from a specific index in the ArrayList.

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