Deck 3: Methods and Behaviors

Question 1

The name of the method,modifiers,return type,and the types of its formal parameters make up the signature of the method.

Answer 1

False

Question 2

A standard convention used by programmers for naming classes is to use an action verb phrase.

Answer 2

False

Question 3

Methods may be defined in any order and placed anywhere in the file,in or outside of the class.

Answer 3

False

Question 4

A standard convention used by C# programmers is to use Pascal case style for class,data member identifiers,and method identifiers.

Question 5

Methods are the members of a class that perform an action,and through writing methods you describe the behavior of data.

Question 6

The accessibility modifier identifies what type of value is returned when the method is completed.

Question 7

The entries found inside the parentheses of the method heading are called the access modifiers.

Question 8

The body of a method can include statements that declare other methods.

Question 9

If a method does not return a value,the void keyword is placed inside the parentheses in the method heading.

Question 10

The Read( )method is different from the ReadLine( )method in that the Read( )returns an int and the ReadLine( )returns a string argument.

Question 11

A semicolon is placed on the end of a method heading following the parameter list.

Question 12

Console applications require a Main( )method,unlike Windows applications that do not require a Main( )method.

Question 13

One required entry for a method heading is the return type.

Question 14

The definition of the method includes the entry inside the curly braces,which is sometimes called the body of the method.

Question 15

In order to hold the screen when the program runs,programmers often add Console.Read( )as a last statement.

Question 16

The Console class is defined in the System namespace.

Question 17

The following are examples of the access modifiers available in C#: public,personal,protected.

Question 18

In order to call a static method from another class,the class name must be used with the method name.

Question 19

The Write( ),WriteLine( ),Read( ),and ReadLine( )methods are all overloaded.

Question 20

In order to indicate a value is constant and cannot be changed,the keyword constant is added.

Question 21

The definition of the method ____.

A) is the same as the heading for the method
B) is the body of the method
C) includes everything between the curly braces
D) includes the heading and the body

Question 22

The most restrictive access modifier that offers accessibility only within the body of the class is ____.

A) internal
B) public
C) protected
D) private

Question 23

Ceiling( ),Pow( ),and Floor( )are all static members of the Console class.

Question 24

Console.WriteLine("Final Grade = {0:N2}",
CalculateGrade(90, 75, 83));
In the statement above,CalculateGrade(90,75,83)is ____.

A) a method call
B) a method declaration
C) an identifier for the class
D) a parameter for the WriteLine( ) method

Question 25

The return type is physically placed ____.

A) immediately preceding the name of the method
B) inside the method
C) as the first entry in the method heading
D) immediately following the name of the method

Question 26

Both out and ref parameter types cause a method to refer to the same variable that was passed into the method.

Question 27

Methods that use the static modifier are called class methods.

Question 28

Console.WriteLine("Final Grade = {0:N2}",
CalculateGrade(90, 75, 83));
The {0:N2} above indicates the ____.

A) first argument should display no digits to the right of the decimal
B) first argument should display two digits to the right of the decimal
C) the argument should be displayed with 0 digits to the left of the decimal and two digits to the right of the decimal
D) the argument should be displayed with 0 digits to the right of the decimal and two digits to the left of the decimal

Question 29

The definition for a method includes just the heading.The signature includes the heading and the body of the method.

Question 30

The Parse( )method returns the number representation of its string argument.

Question 31

Console.WriteLine("Final Grade = {0:N2}",
CalculateGrade(90, 75, 83));
In the statement above,the values placed inside the parentheses following CalculateGrade are ____.

A) arguments to the method
B) formal parameters of the method
C) printed at runtime
D) values being returned from the method

Question 32

C# offers both call by value and call by reference parameters.Call by value is the default type.

Question 33

Which of the following is a user-defined method?

A) Parse( )
B) Write( )
C) Main( )
D) Pow( )

Question 34

____ is added to hold the screen when the program runs.

A) Hold( )
B) return
C) Read( )
D) Pause( )

Question 35

A namespace is really nothing more than a group of statements placed together under a single
name.

Question 36

Methods can be defined globally outside of a class in C#.

Question 37

One way to ensure that you have one entry and one exit from a method is to include a single return statement as the last statement in the method.

Question 38

When a distinction is made between parameters and arguments,____.

A) actual arguments appear in the method heading
B) parameters are the values used to call the method
C) formal parameters appear in the method heading
D) actual arguments are part of the formal parameters

Question 39

The first line of a method is called the ____ of the method.

A) signature
B) definition
C) heading
D) declaration

Question 40

The return keyword may not be included with a non-value returning method (void method).

Question 41

The Math class has a number of static methods located in the _____________ namespace.

A) Math
B) System
C) IO
D) Arithmetic

Question 42

Method names should be defined with meaningful names using ____.

A) camel case
B) singular nouns
C) upper case characters
D) verb phrases

Question 43

The ____ of an identifier is the region of the program in which that identifier is usable.

A) access
B) scope
C) modifier
D) declaration

Question 44

The ____ specifies what kind of information is returned when the body of the method is finished executing.

A) access modifiers
B) parameters
C) static modifier
D) returnType

Question 45

The return type for the method above is ____.

A) public
B) static
C) void
D) Main( )

Question 46

The ____ parameter type cannot be used unless the original argument is initialized before it is sent to the method.

A) ref
B) in
C) out
D) params

Question 47

A method that does not return any value on exit,____.

A) must be called with the void keyword
B) cannot include the return keyword
C) must be defined to have a void return type
D) is not allowed in C#

Question 48

A method used to convert from one base type to another is ____.

A) ChangeValue( )
B) Convert( )
C) ToDouble( )
D) Convert.ToDouble( )

Question 49

The result of the call to Math.Pow( )in the above statement is to store ________ in answer:

A) 9
B) 3, 2
C) 6
D) an error message

Question 50

The following members of the Math class,(Round( ),Max( ),Exp( )),must be called using the class name,because they are all ____.

A) static methods
B) objects
C) predefined methods
D) private methods

Question 51

Which of the following would be a valid call to the above method?

A) answer = Abs(-23);
B) answer = int Math.Abs(-23)
C) answer = Math.Abs(-23)
D) answer = int Abs(-23)

Question 52

Calls to ____ methods use the class identifier instead of the object identifier as the method qualifier.

A) value returning
B) static
C) private
D) predefined

Question 53

Which method returns the largest whole number less than or equal to the specified number?

A) Max( )
B) Ceiling( )
C) Floor( )
D) Largest( )

Question 54

In order to call or invoke a nonvalue-returning method,enter the ____.

A) access modifier followed by the method identifier and list of arguments
B) return type followed by the method identifier and list of parameters
C) method's identifier followed by list of arguments
D) access modifier, return type, and method's identifier followed by list of parameters

Question 55

When you assign a default value to a parameter,it then becomes a(n): ____.

A) named parameter
B) static parameter
C) method parameter
D) optional parameter

Question 56

An advantage of using named parameters is: ____.

A) program runs more efficiently because the named parameters can be accessed
B) program runs faster
C) you can send in values through using the names of the parameters instead of having to worry about getting the exact order
D) default values can be used

Question 57

Which of the following methods are not overloaded?

A) WriteLine( )
B) Write( )
C) ReadLine( )
D) Abs( )

Question 58

The Read( )method ____.

A) is a nonvalue-returning method
B) returns a string
C) returns a single char
D) returns an int

Question 59

The access modifier in the heading above is the keyword ____.

A) public
B) static
C) void
D) Main( )

Question 60

Which of the following is NOT a parameter type?

A) out
B) in
C) ref
D) params

Question 61

____________ is an overloaded method of the Math class that returns the larger of two
specified numbers.

Question 62

_____________access offers the fewest access limitations;there are basically no restrictions on accessing ____________ members or classes.

Question 63

When naming a(n)____________,use an action verb phrase.

Question 64

When you assign a default value to a parameter,it then becomes a(n)____________ parameter.

Question 65

Call by ____________ is the default parameter type.

Question 66

When a class or a class member does not specify a modifier,the default accessibility
level of _______________ is assumed.

Question 67

The ____________ type is always listed immediately preceding the name of the method.

Question 68

All programs consist of at least one ____________.

Question 69

The term ____________ is often used to indicate where an identifier has meaning and can be used

Question 70

Avoid writing long methods.Consider refactoring when the method exceeds ____________ lines of code

Question 71

All Main( )method headings must include the ____________ modifier meaning that the method belongs to the type itself rather than to a specific object of a class.

Question 72

Calls to ____________ methods must be placed at a location in your code where the value could be accepted when the method is finished.

Question 73

When naming local variable identifiers and parameters,use ____________.

Question 74

One option to holding the screen at the end of a program is to invoke Console.Read( ).Another option is to call ____________.It obtains the next character or function key from the user.

Question 75

____________ is used to indicate that no value is being returned from a method.