Question 1

Under what circumstances will a method receive the actual memory address of a passed array, and be able to alter values in the original array?

Accepted Answer

In programming languages like Java, arrays are passed by reference, meaning the method receives the actual memory address of the array, allowing it to alter the original array's values.

Question 2

What are the two most common accessibility levels in C#?

Accepted Answer

The answer of What are the two most common accessibility...

Question 3

For a method that accepts a parameter, what are the components of the parameter definition that must be included in the method declaration? Show an example of a method declaration with a parameter.

Accepted Answer

The answer of For a method that accepts a parameter,...

Question 4

When a method resides entirely within another method, and can only be called from within the containing method, what is the method known as?

Accepted Answer

A local function is a function defined within another function and can only be called from within the containing function.

Question 5

Write a DisplaySalesTax() method that receives the sales amount and tax rate as doubles, and calculates and displays the sales tax.The method does not return a value.

Accepted Answer

The answer of Write a DisplaySalesTax() method that receives the...

Question 6

When a variable or constant is required by multiple methods in a GUI program, where should it be defined?

Accepted Answer

Defining the variable or constant outside of the methods but inside the Form class allows it to be accessed by multiple methods within the same class, promoting reusability and maintainability.

Question 7

When writing an event-handling method in a GUI application, what should you consider about a variable's scope?

Accepted Answer

The answer of When writing an event-handling method in a...

Question 8

If no method access specifier is defined for Main(), what will it be by default?

Accepted Answer

By default, if no access specifier is defined for a method in C#, it is private.

Question 9

Describe how nested method calls work.For example, if you have three nested method calls, which method executes first and how are return values propagated? Is there a limit to how many method calls can be nested?

Accepted Answer

The answer of Describe how nested method calls work.For example,...

Question 10

What are the components of a C# method declaration?

Accepted Answer

The answer of What are the components of a C#...

Question 11

When you place a button named okButton on a Form in the IDE and double-click it, what method header is generated automatically? (Note that if you are using Visual Studio 2019, each method name will start with an uppercase letter.)

Accepted Answer

In Visual Studio, when you double-click a button in the designer, it generates an event handler method with the signature "private void okButton_Click(object sender, EventArgs e)" by default.

Question 12

What characters are placed after the data type in a method's parameter list to indicate that a method parameter is an array?

Accepted Answer

[] indicates that a method parameter is an array.

Question 13

What statement is used to cause a value to be sent back to the calling method?

Accepted Answer

The return statement is used to cause a value to be sent back to the calling method.

Question 14

What are the components of a C# method?

Accepted Answer

The answer of What are the components of a C#...

Question 15

Explain how to write a Main() method that accepts parameters.Why might this format be used?

Accepted Answer

The answer of Explain how to write a Main() method...

Question 16

How are the parameters for a Click() method received?

Accepted Answer

The Click() method is typically an event handler in GUI frameworks, and it automatically receives parameters when the corresponding button is pressed, such as the sender object and event arguments.

Question 17

What is the term used to describe the calling of a method from within another method?

Accepted Answer

Nested method calling refers to the practice of calling one method from within another method.

Question 18

What will a Click() method that responds to button clicks be by default, due to the fact that it is associated with an object that is a Form?

Accepted Answer

The Click() method is nonstatic by default because it is associated with an instance of a Form object, meaning it operates on a specific instance rather than the class itself.

Question 19

The keyword static is used with Main() methods in console applications because the method is associated with its containing class and not with an object.Why are Form methods, such as a Click() method that responds to button clicks, nonstatic?

Accepted Answer

The answer of The keyword static is used with Main()...

Quiz 7: Using Methods