Intro To Class, Objects And Methods
17 Questions
| Total Attempts: 309
.
Questions and Answers
- 1.How many classes are there in a program/app?
- A.
2
- B.
2 or more
- C.
One or more
- D.
0 or 1
- 2.Which of the following simple types should be used for monetary values?
- A.
Decimal
- B.
Float
- C.
Int
- D.
Double
- 3.Not all statements that performed tasks are located in method Main.
- A.
True
- B.
False
- 4.The int type should be used for monetary amounts.
- A.
True
- B.
False
- 5.An object's property can have which of the following accessors?
- A.
Get
- B.
Set
- C.
A and b
- D.
None
- 6.Which one refers to the data represented by an object's instance variables?
- A.
Behaviours
- B.
Attributes
- C.
Methods
- D.
Information
- 7.Each object of class is identical except for the values and references it holds.
- A.
True
- B.
False
- 8.Methods always return a value or reference.
- A.
True
- B.
False
- 9.Instance variables and local variables both represent the attributes of a class.
- A.
True
- B.
False
- 10.In UML class diagrams, the + sign
- A.
Signifies that the section can be expanded
- B.
Is the public visibility symbol
- C.
Stands for addition
- D.
None of the above
- 11.Method headers contain all of the following except:
- A.
Access modifer
- B.
Left brace
- C.
Method name
- D.
Return type
- 12.Every #C app is composed of at least one:
- A.
Public method
- B.
Data member
- C.
Public class declaration
- D.
Imported class
- 13.C# is known as an extensible language because it declares all classes ahead of time.
- A.
True
- B.
False
- 14.The keyword new is used to create a new method of a class.
- A.
True
- B.
False
- 15.Which of the following method headers does the following method call match?
- A.
Action ()
- B.
Action (int x, double y, string z)
- C.
Action (string x, double y, int z)
- D.
Action (string x, int y, double z)
- 16.How would the following method header be represented in a UML class diagram?
- A.
+ DisplayMessage ()
- B.
+ DisplayMessage ( string )
- C.
+ DisplayMessage ( courseName: string)
- D.
+ DisplayMessage ( courseName )
- 17.The comma-seperated values specified in a method called are:
- A.
Arguments
- B.
References
- C.
Objects
- D.
Parameters
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