2023 The ability to use methods without knowing the details of their contents is a feature of 2 A constructor | Assignment Collections

Computer Science 2023 computer work

2023 The ability to use methods without knowing the details of their contents is a feature of 2 A constructor | Assignment Collections

The ability to use methods without knowing the details of their contents is a feature of ____.
 
2.
A constructor may require ____.
 
3.
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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4.
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.
 
5.
Everything is an object, and every object is a member of a ____.
 
6.
A ____ is a segment of code that can handle an exception that might be thrown by the try block that precedes it.
 
7.
The memory location known as the ____ is where the computer stores the list of method locations to which the system must return.
 
8.
When appropriate, specialized ____ classes provide an elegant way for you to handle error situations.
 
9.
Creating multiple methods with the same name, which will act differently and appropriately when used with different types of objects, is known as polymorphism.
 
10.
The call stack is where the computer stores the list of exceptions.
 
11.
A(n) ____ is one instance of a class.
 
12.
The object-oriented techniques to manage errors such as dividing a value by 0 comprise the group of methods known as ____.
 
13.
Simple non-array variables are usually passed to methods by ____.
 
14.
What is one item that must be included in a method’s header if it can receive a parameter?
 
15.
Libraries are collections of classes that serve related purposes.
 
16.
Programmers refer to hidden implementation details as existing in a ____.
 
17.
____ is the process of creating a new, derived class from a base class.
 
18.
When a variable is declared within a method, it ceases to exist when the method ends.
 
19.
A method’s ____ consists of the method’s statements.
 
20.

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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21.
When illegal division by 0 takes place, an Exception object is not created automatically by the object-oriented language application.
 
22.
You can write as many constructors for a class as you want, as long as they all have different ____ lists.
 
23.
Overloaded methods have the same name and parameter lists.
 
24.
When a main() method needs to use another method, it calls, or invokes it.
 
25.
Multiple inheritance is the capability to inherit more than one method from a parent class.
 
26.
A method can be used more than once within a program or in other programs.
 
27.
Global variables are known to the entire class.
 
28.
Methods are sometimes called ____.
 
29.
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.
 
30.

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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31.
A class diagram consists of a ____ divided into three sections.
 
32.
An instance method or constructor may be overloaded by providing the same name and ____ argument list.
 
33.
Class diagrams are a type of ____ diagram.
 
34.
A(n) ____ statement indicates the end of the catch block in the pseudocode.
 
35.
An object is a category of things.
 
36.
When a data field is private, it is said to be ____ to any class other than the one in which it is defined.
 
37.
Methods can be ____ correctly by providing different parameter lists for methods with the same name.
 
38.
____ variables and constants are those that are known to an entire class.
 
39.
A ____ is one that sends an exception object out of a method so it can be handled elsewhere.
 
40.
A method is a program module that contains a series of statements that carry out a task.
 
41.
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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42.
Unreachable code statements are program statements that only execute if there is an exception.
 
43.
A child class contains all the data fields and ____ of its parent.
 
44.
A parent class is the same thing as a base class.
 

 

 

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