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Test - CS192 Programming Essentials 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 Creating multiple methods with the same name

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Test - CS192 Programming Essentials 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 Creating multiple methods with the same name

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Programming Essentials


1.


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.


 


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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. True or False


3.


A(n) ____ is one instance of a class.


 A) method


 B) object


 C) instantiation


 D) attribute


 


 


4.The call stack is where the computer stores the list of exceptions.


 A) True


 B) False


5.


Multiple inheritance is the capability to inherit more than one method from a parent class.


 A) True


 B) False


6.


Simple non-array variables are usually passed to methods by ____.


 A) value


 B) reference


 C) type


 D) class


7.


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


 


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8.


A method can be used more than once within a program or in other programs.


 A) True


 B) False


9.


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


10.


An object is a category of things.


 A) True


 B) False


11.


A child class contains all the data fields and ____ of its parent.


 A) parameters


 B) classes


 C) methods


 D) procedures


12.


Libraries are collections of classes that serve related purposes.


 A) True


 B) False


13.


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


14.


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


15.


A method’s ____ consists of the method’s statements.


 A) body


 B) space


 C) space


 D) group


16.


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


17.


When a variable is declared within a method, it ceases to exist when the method ends.


 A) True


 B) False


18.


A constructor may require ____.


 A) parameters


 B) methods


 C) objects


 D) inheritance


19.


A class diagram consists of a ____ divided into three sections.


 A) square


 B) rectangle


 C) circle


 D) triangle


20.


Overloaded methods have the same name and parameter lists.


 A) True


 B) False


21.


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 endcatch statement, and a return statement.


 A) True


 B) False


22.


When illegal division by 0 takes place, an Exception object is not created automatically by the object-oriented language application.


 A) True


 B) False


23.


Global variables are known to the entire class.


 A) True


 B) False


24.


Programmers refer to hidden implementation details as existing in a ____.


 A) white box


 B) white hole


 C) black box


 D) black hole


25.


When a data field is private, it is said to be ____ to any class other than the one in which it is defined.


 A) uninheritable


 B) implicit


 C) unreachable


 D) inaccessible


26.


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


27.


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


28.


When appropriate, specialized ____ classes provide an elegant way for you to handle error situations.


 A) Exception


 B) Error


 C) Constructor


 D) Event


29.


A method is a program module that contains a series of statements that carry out a task.


 A) True


 B) False


30.


When a main() method needs to use another method, it calls, or invokes it.


 A) True


 B) False


31.


Methods can be ____ correctly by providing different parameter lists for methods with the same name.


 A) updated


 B) tested


 C) overloaded


 D) passed


32.


A parent class is the same thing as a base class.


 A) True


 B) False


33.


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


34.


Design a class named CustomerRecord 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. psuedocode) that defines the class.


 


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35.


Class diagrams are a type of ____ diagram.


 A) Unified Illustration Language


 B) Unified Modeling Language


 C) Object-Oriented Modeling Language


 D) Unified Pseudocode Language


36.


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


37.


Methods are sometimes called ____.


 A) segments


 B) modules


 C) classes


 D) routines


38.


The ability to use methods without knowing the details of their contents is a feature of ____.


 A) abstraction


 B) encapsulation


 C) inheritance


 D) construction


39.


____ is the process of creating a new, derived class from a base class.


 A) Accessibility


 B) Encapsulation


 C) Inheritance


 D) Polymorphism


40.


Everything is an object, and every object is a member of a ____.


 A) class


 B) method


 C) case


 D) process


41.


What will be the output of the below program? List what will be outputed 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


 


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42.


Unreachable code statements are program statements that only execute if there is an exception.


 A) True


 B) False


43.


____ variables and constants are those that are known to an entire class.


 A) Global


 B) Local


 C) Universal


 D) Comprehensive


44.


A(n) ____ statement indicates the end of the catch block in the pseudocode.


 A) finalcatch


 B) finally


 C) endcatch


 D) stop

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Details

 

Programming Essentials

1.

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.

 

HTML Editor

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. True or False

3.

A(n) ____ is one instance of a class.

 A) method

 B) object

 C) instantiation

 D) attribute

 

 

4.The call stack is where the computer stores the list of exceptions.

 A) True

 B) False

5.

Multiple inheritance is the capability to inherit more than one method from a parent class.

 A) True

 B) False

6.

Simple non-array variables are usually passed to methods by ____.

 A) value

 B) reference

 C) type

 D) class

7.

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

 

HTML Editor

8.

A method can be used more than once within a program or in other programs.

 A) True

 B) False

9.

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

10.

An object is a category of things.

 A) True

 B) False

11.

A child class contains all the data fields and ____ of its parent.

 A) parameters

 B) classes

 C) methods

 D) procedures

12.

Libraries are collections of classes that serve related purposes.

 A) True

 B) False

13.

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

14.

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

15.

A method’s ____ consists of the method’s statements.

 A) body

 B) space

 C) space

 D) group

16.

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

17.

When a variable is declared within a method, it ceases to exist when the method ends.

 A) True

 B) False

18.

A constructor may require ____.

 A) parameters

 B) methods

 C) objects

 D) inheritance

19.

A class diagram consists of a ____ divided into three sections.

 A) square

 B) rectangle

 C) circle

 D) triangle

20.

Overloaded methods have the same name and parameter lists.

 A) True

 B) False

21.

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 endcatch statement, and a return statement.

 A) True

 B) False

22.

When illegal division by 0 takes place, an Exception object is not created automatically by the object-oriented language application.

 A) True

 B) False

23.

Global variables are known to the entire class.

 A) True

 B) False

24.

Programmers refer to hidden implementation details as existing in a ____.

 A) white box

 B) white hole

 C) black box

 D) black hole

25.

When a data field is private, it is said to be ____ to any class other than the one in which it is defined.

 A) uninheritable

 B) implicit

 C) unreachable

 D) inaccessible

26.

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

27.

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

28.

When appropriate, specialized ____ classes provide an elegant way for you to handle error situations.

 A) Exception

 B) Error

 C) Constructor

 D) Event

29.

A method is a program module that contains a series of statements that carry out a task.

 A) True

 B) False

30.

When a main() method needs to use another method, it calls, or invokes it.

 A) True

 B) False

31.

Methods can be ____ correctly by providing different parameter lists for methods with the same name.

 A) updated

 B) tested

 C) overloaded

 D) passed

32.

A parent class is the same thing as a base class.

 A) True

 B) False

33.

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

34.

Design a class named CustomerRecord 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. psuedocode) that defines the class.

 

HTML Editor

35.

Class diagrams are a type of ____ diagram.

 A) Unified Illustration Language

 B) Unified Modeling Language

 C) Object-Oriented Modeling Language

 D) Unified Pseudocode Language

36.

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

37.

Methods are sometimes called ____.

 A) segments

 B) modules

 C) classes

 D) routines

38.

The ability to use methods without knowing the details of their contents is a feature of ____.

 A) abstraction

 B) encapsulation

 C) inheritance

 D) construction

39.

____ is the process of creating a new, derived class from a base class.

 A) Accessibility

 B) Encapsulation

 C) Inheritance

 D) Polymorphism

40.

Everything is an object, and every object is a member of a ____.

 A) class

 B) method

 C) case

 D) process

41.

What will be the output of the below program? List what will be outputed 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

 

HTML Editor

42.

Unreachable code statements are program statements that only execute if there is an exception.

 A) True

 B) False

43.

____ variables and constants are those that are known to an entire class.

 A) Global

 B) Local

 C) Universal

 D) Comprehensive

44.

A(n) ____ statement indicates the end of the catch block in the pseudocode.

 A) finalcatch

 B) finally

 C) endcatch

 D) stop

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