Array and Loops in C#

What is an array in C#?

• A collection of elements with different types.

• A collection of elements with the same type.

• A dynamic collection of elements.

How do you declare an array of integers in C# with a size of 10?

• int[] numbers = new int();

• int[10] numbers;

• int[] numbers = new int[10];

What is the index of the first element in an array in C#?

• 0

• 1

• -1

Which loop is more suitable when the number of iterations is known beforehand?

• • for loop

• while loop

• do-while loop

In a for loop, what does the third expression control?

• Initialization

• Condition

• Iteration

How do you access the element at index 3 in an array named data?

• data[3]

• data(3)

• data.at(3)

What is the purpose of the foreach loop in C#?

• To iterate over the elements of an array or collection.

• To execute a block of code repeatedly until a condition is met.

• To define a function that can be called within a loop.

Which loop guarantees that the code block is executed at least once?

• for loop

• while loop

• do-while loop

What happens if the condition in a while loop is initially false?

• The loop runs indefinitely.

• The loop runs once.

• The loop does not run.

What is the output of the following code snippet?

• 12345

• 54321

• 01234