Reference no: EM13804832
1. When illegal division by 0 takes place, an Exception object is not created automatically by the object-oriented language application.
A) True
B) False
2. Creating multiple methods with the same name, which will act differently and appropriately when used with different types of objects, is known as polymorphism.
A) True
B) False
3. A ____ reference is an automatically created variable that holds the address of an object and passes it to an instance method whenever the method is called.
A) key
B) public
C) that
D) this
4. A method's ____ consists of the method's statements.
A) body
B) space
C) space
D) group
5. What is one item that must be included in a method's header if it can receive a parameter?
A) local parameter name
B) global parameter name
C) parameter's client
D) return data structure
6. A ____ is one that sends an exception object out of a method so it can be handled elsewhere.
A) catch statement
B) throw method
C) catch block
D) throw statement
7. Everything is an object, and every object is a member of a ____.
A) class
B) method
C) case
D) process
8. What will be the output of the below program? List what will be out-putted to the screen and explain your answer.
class Class_name
main()
// Declarations
num index
num SIZE = 10
num numbers[SIZE] = 0,0,0,0,0,0,0,0,0,0
index = 0
while index < SIZE
numbers[index]= index * 10
index = index + 1
endwhile
output "The Output is: "
while index > 0
index = index - 1
output numbers[index]
endwhile
return
endClass
9. ____ is the process of creating a new, derived class from a base class.
A) Accessibility
B) Encapsulation
C) Inheritance
D) Polymorphism
10. A method can be used more than once within a program or in other programs.
A) True
B) False
11. The object-oriented techniques to manage errors such as dividing a value by 0 comprise the group of methods known as ____.
A) exception handling
B) error handling
C) exception processing
D) error processing
12. You can write as many constructors for a class as you want, as long as they all have different ____ lists.
A) object
B) data field
C) method
D) parameter
13. Design a class named Customer Record that holds a customer number, name, and address. Include methods to set the values for each data field and output the values for each data field. Create the class diagram and write the code (not language specific, ie. Pseudo code) that defines the class.
14. A(n) ____ statement indicates the end of the catch block in the pseudo code.
A) final catch
B) finally
C) end catch
D) stop
15. Libraries are collections of classes that serve related purposes.
A) True
B) False
16. Write a method that will perform the a division operation (divide by) on the numbers passed to it in two variables (numerator, denominator) and outputs the results. Use a try-catch pair to output an error message if the illegal operation of divide by 0 occurs.
17. A (n) ____ is one instance of a class.
A) method
B) object
C) instantiation
D) attribute
18. A catch block consists of four different elements: the keyword catch, followed by parentheses that contain an exception type and identifier, statements that take action to handle the error condition, an end catch statement, and a return statement.
A) True
B) False
19. An object is a category of things.
A) True
B) False
20. Simple non-array variables are usually passed to methods by ____.
A) value
B) reference
C) type
D) class
21. When a main() method needs to use another method, it calls, or invokes it.
A) True
B) False
22. The ability to use methods without knowing the details of their contents is a feature of ____.
A) abstraction
B) encapsulation
C) inheritance
D) construction
23. A method is a program module that contains a series of statements that carry out a task.
A) True
B) False
24. ____ variables and constants are those that are known to an entire class.
A) Global
B) Local
C) Universal
D) Comprehensive
25. What is the screen output of the following code segment? Explain the reasoning behind your answer.
Test1 = 70
Test2 = 80
Test3 = 84
NumberOfTests = 3
Average = (Test1 + Test2 + Test3) / NumberOfTests
IF Average >= 90 THEN
Output "Great job"
Output "Your average is: ", Average
ELSE
IF Average >= 80 or Average <=89 THEN
Output "Nice work"
Output "Your average is: ", Average
ELSE
Output : "Your Average is:", Average
Output ", You will do better next time!"
ENDIF
26. Methods can be ____ correctly by providing different parameter lists for methods with the same name.
A) up dated
B) tested
C) overloaded
D) passed
27. A class diagram consists of a ____ divided into three sections.
A) square
B) rectangle
C) circle
D) triangle
28. When a data field is private, it is said to be ____ to any class other than the one in which it is defined.
A) un inheritable
B) implicit
C) unreachable
D) inaccessible
29. Overloaded methods have the same name and parameter lists.
A) True
B) False
30. A constructor may require ____.
A) parameters
B) methods
C) objects
D) inheritance
31. A parent class is the same thing as a base class.
A) True
B) False
32. Programmers refer to hidden implementation details as existing in a ____.
A) white box
B) white hole
C) black box
D) black hole
33. The call stack is where the computer stores the list of exceptions.
A) True
B) False
34. The memory location known as the ____ is where the computer stores the list of method locations to which the system must return.
A) method stack
B) location stack
C) call stack
D) store location
35. When appropriate, specialized ____ classes provide an elegant way for you to handle error situations.
A) Exception
B) Error
C) Constructor
D) Event
36. A child class contains all the data fields and ____ of its parent.
A) parameters
B) classes
C) methods
D) procedures
37. Multiple inheritance is the capability to inherit more than one method from a parent class.
A) True
B) False
38. Methods are sometimes called ____.
A) segments
B) modules
C) classes
D) routines
39. Class diagrams are a type of ____ diagram.
A) Unified Illustration Language
B) Unified Modeling Language
C) Object-Oriented Modeling Language
D) Unified Pseudo code Language
40. Unreachable code statements are program statements that only execute if there is an exception.
A) True
B) False
41. Global variables are known to the entire class.
A) True
B) False
42. When a variable is declared within a method, it ceases to exist when the method ends.
A) True
B) False
43. An instance method or constructor may be overloaded by providing the same name and ____ argument list.
A) a different
B) the same
C) a larger
D) a smaller
44. A ____ is a segment of code that can handle an exception that might be thrown by the try block that precedes it.
A) catch method
B) throw block
C) catch block
D) throw statement