18 Questions
What is an array in C#?
A group of variables with the same type that are reference types
How can you refer to a specific element in an array?
By providing the name of the reference to the array and the element's index
How do you create an array in C#?
By using the 'new' operator and specifying the number of elements
What class are arrays considered as in C#?
System.Array
What is the format for declaring an array in C#?
type identifier = new type [integral value];
Why are arrays typically created with the 'new' keyword in C#?
To instantiate an object of a user-defined class
In the given code snippet, what is the total value of all elements in the 'array'?
772
What is the purpose of using the 'foreach' statement in C#?
To iterate through an array and provide read-only access
What is the main limitation of the iteration variable used in a 'foreach' loop?
It can only be used for assignment operations
When should the 'foreach' statement be used with arrays?
When every array element needs to be accessed
What does the 'var' keyword indicate in C#?
A variable of unknown type
Which of the following is NOT a valid use case for the 'foreach' statement with arrays?
Modifying array elements
What is the purpose of the 'params' keyword in C#?
Indicates the number of arguments that can vary in a method
In C#, where should the 'params' keyword be placed in the method heading?
It must be the last parameter listed
What does a parallel array refer to in C#?
Two or more arrays that have a relationship
How are arrays commonly used in classes in C#?
As fields or instance variables in classes
What is the output of the 'DisplayItems(1, 2, 3, 5);' method call?
[1, 2, 3]
What does the 'ModifyElement(array)' method attempt to do in C#?
Access a specific element in the array for modification
Test your knowledge on arrays in C# with this quiz. Questions cover topics such as iterating over arrays using foreach loop and calculating the total of array elements. Get ready to enhance your C# skills!
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