Question 1

A parameter variable's scope is the ____________ in which the parameter variable is declared.

Accepted Answer

A parameter variable is declared within the parentheses of a method where it is used as a placeholder for an argument passed to the method. Therefore, its scope is limited to that specific method only.

Question 2

When you pass an argument to a method, the argument's data type must be ____________ with the receiving parameter's data type.

Accepted Answer

The data type of the argument must be assignment compatible with the receiving parameter's data type, meaning that the argument's data type can be implicitly converted or promoted to the receiving parameter's data type. It does not have to be identical, but it must be compatible.

Question 3

Which one of the following statements correctly calls a method named ShowName?

Accepted Answer

B) ShowName(); is the correct syntax for calling a method named ShowName in most programming languages like Java, C#, and others. The syntax includes the method name followed by parentheses.

Question 4

A __________ is a variable that receives an argument that is passed into a method.

Accepted Answer

A parameter is a variable that receives an argument that is passed into a method. It allows for the method to accept different values and perform the necessary operations on them. B is incorrect because an argument is the actual value passed into a method, while a parameter is the variable that receives the argument. C is incorrect because a reference refers to the memory location of an object, and is not directly related to the passing of arguments into a method. D is incorrect because one of the choices must be correct.

Question 5

Data values passed a method when it is called are known as ____________.

Accepted Answer

Arguments are the actual data values passed to a method when it is called. Parameters are the variables in the definition of the method that receive the arguments.

Question 6

When an argument is ____________, only a copy of the argument's value is passed into the parameter variable.

Accepted Answer

When an argument is passed by value, only a copy of the argument's value is passed into the parameter variable. This means that any modifications made to the parameter variable will not affect the original argument.

Question 7

The ____________ is a collection of statements that are performed when a method is executed.

Accepted Answer

The method body is the portion of the code that contains the statements that are executed when a method is called. It is the heart of the method and determines what the method does. The other choices are not accurate descriptions of the code that is executed when a method is called.

Question 8

When you want a method to be able to change the value of a variable that is passed to it as an argument, the variable must be ____________.

Accepted Answer

When a variable is passed by reference, any changes made to the parameter inside the method will also affect the original variable outside the method. This allows for the method to change the value of the variable that is passed to it.

Question 9

It is a standard convention among C# programmers to use ____________ for method names because it differentiates method names from variable and field names.

Accepted Answer

Pascal case capitalizes the first letter of each word in a method name, making it easier to differentiate from variable and field names.

Question 10

The memory address that is saved by the system when a method is called and is the location to which the system should return after a method ends is known as the ____________.

Accepted Answer

This is commonly known as the return address or return point, and it is a crucial component of the call stack. When a method is called, the system stores the address of the instruction immediately following the method call, so that it can resume execution at that point after the method returns.

Question 11

A method containing a(n) ____________ allows you to specify which parameter variable the argument should be passed to.

Accepted Answer

Named arguments allow you to explicitly specify which parameter a specific argument should be assigned to. This can make code more readable and less error-prone, as it reduces confusion about the order of parameters. The other options are not relevant to this concept.

Question 12

When a ____________ is provided for a parameter, it is possible to call the method without explicitly passing an argument into the parameter.

Accepted Answer

When a default argument is provided for a parameter, it means that the parameter already has a predetermined value, and if no other value is passed into that parameter, then the default value is used instead. This way, it is possible to call the method without explicitly passing an argument into the parameter.

Question 13

When you call a ____________ method, it executes statements it contains and then returns a value back to the program statement that called it.

Accepted Answer

A value-returning method is designed to execute statements and return a value back to the program statement that called it. This is often used when a method needs to perform a calculation or manipulate data in some way and then pass the result back to the calling statement for further processing. The other options are not the best answer as void methods do not return a value and recursive methods call themselves repeatedly, not returning a value after each call. The "public" keyword is not relevant to the question as it refers to the access level of the method, not its return type.

Question 14

When a method contains multiple parameters, they are often referred to collectively as a(n) ____________.

Accepted Answer

Multiple parameters in a method are collectively referred to as a parameter list.

Question 15

The benefit from dividing code into methods known as ____________ is gained as follows: After you write code to perform a task once, you can use the code again every time your program needs to perform the same task.

Accepted Answer

Code reuse refers to the practice of utilizing existing code for a particular functionality instead of having to write new code every time. Dividing code into methods facilitates code reuse by providing a modular structure, making it easier to identify and reuse specific segments of pre-existing code.

Question 16

When you call a ____________ method, it executes its code and returns without passing any value back to the program statement that called it.

Accepted Answer

A void method does not return any value back to the program statement that called it.

Question 17

Programmers commonly use a technique known as ____________ to divide an algorithm into smaller parts, which are then implemented as methods.

Accepted Answer

Top-down design is the process of breaking down a larger problem into smaller, more manageable subproblems. This technique is commonly used in programming to organize code into reusable methods or functions.

Question 18

The ____________, which appears at the beginning of a method definition, lists several important things about the method, including the method's name and list of parameters.

Accepted Answer

The method header appears at the beginning of a method definition and includes important information such as the method's name and list of parameters.

Question 19

In general terms, a program that is broken into smaller units of code such as methods, is known as a____________.

Accepted Answer

A modularized program is broken down into individual modules or units, with each module performing a specific task or set of related tasks. This approach can make the program easier to maintain and modify, as changes can be made to individual modules without affecting the rest of the program. The other options are less commonly used terms and do not accurately describe the concept of breaking a program into smaller units of code.

Question 20

Dividing a large problem into several smaller problems that are easily solved is sometimes called ____________.

Accepted Answer

Dividing a large problem into smaller problems is known as the "divide and conquer" approach. This approach makes it easier to solve complicated problems by breaking them down into simpler, more manageable parts. Programmatic simplification, top-down design, and parallel design are related concepts, but they speak to slightly different approaches to problem-solving.

Quiz 6: Modularizing Your Code with Methods