Question 1

Programs that can handle all kinds of user errors, without allowing damage, and can do it immediately, correctly, and smoothly, are called robust.

Accepted Answer

False

Question 2

Programs that can handle all kinds of user errors are called elegant.

Accepted Answer

Elegant programs are those that can handle all kinds of user errors gracefully, not all kinds of errors.

Question 3

A common acronym in the computer field is GIGO, standing for &#34;going in, going out.&#34;

Accepted Answer

GIGO stands for "Garbage In, Garbage Out," indicating that the quality of output is determined by the quality of the input.

Question 4

A menu system limits the choices a user can make so that only valid options are processed.

Accepted Answer

A menu system is designed to present users with a list of options or commands that are available for them to choose from, effectively limiting their choices to only those that are valid and can be successfully processed by the system.

Question 5

When prompting users to enter a character, you should allow uppercase or lowercase input.

Accepted Answer

Allowing both uppercase and lowercase input improves user experience by making the interface more flexible and accommodating to different user input habits.

Question 6

When you use a menu system, the most common model is a menu that stays onscreen to use repeatedly, instead of a menu that allows users to make only one choice.

Accepted Answer

The most common model for menu systems in user interfaces is one where the menu stays onscreen, allowing users to make multiple selections or to use it repeatedly, rather than a menu that disappears after one choice is made. This approach enhances usability by providing consistent access to options.

Question 7

When creating a menu system, you should display an error message, as a form of data validation, if the user does not enter a valid choice (including the exit choice).

Accepted Answer

Displaying an error message for invalid input, including the exit choice, is a good practice in data validation. It informs the user of the mistake and guides them towards making a correct choice, enhancing the user experience and preventing potential errors in the program's execution.

Question 8

To create a menu that is used more than once, a repetition structure that encloses the selection structure is more suitable, and you can also add a choice for the user to exit the menu.

Accepted Answer

Using a repetition structure (like a loop) around a selection structure (like if-else statements) allows the menu to be displayed multiple times until the user decides to exit, making it more user-friendly and efficient for repeated use.

Question 9

Consistency is important for good programming design and readability.

Accepted Answer

Consistency in programming design and readability helps in maintaining a uniform coding style, making it easier for developers to understand, debug, and collaborate on code.

Question 10

In JavaScript, functions are listed second, in the <body> section of HTML.

Accepted Answer

In JavaScript, functions can be defined and invoked in various places, including within the or sections of an HTML document, or in external JavaScript files linked to the HTML document. There's no rule that functions must be listed second or specifically in the section.

Question 11

When modules and functions are used as menu-processing choices, you can design a menu system easily by using the top-down method of program design.

Accepted Answer

The answer of When modules and functions are used as...

Question 12

The Case structure is a variation of the If/Else structure.

Accepted Answer

The answer of The Case structure is a variation of...

Question 13

Text data (data of the String type) consists of almost anything the user can type at the keyboard.

Accepted Answer

The answer of Text data (data of the String type)...

Question 14

isNumeric(str) is a string manipulation function.

Accepted Answer

The answer of isNumeric(str) is a string manipulation function....

Question 15

isLetter(str) is a string manipulation function.

Accepted Answer

The answer of isLetter(str) is a string manipulation function....

Question 16

JavaScript converts a number to a string format automatically if the number needs to be displayed as text.

Accepted Answer

The answer of JavaScript converts a number to a string...

Question 17

Function calls start with the function name and are followed by the arguments (which can be constants or variables) in parentheses.

Accepted Answer

The answer of Function calls start with the function name...

Question 18

Method calls start with the method name and are followed by a dot, the object name, and parentheses for enclosing arguments.

Accepted Answer

The answer of Method calls start with the method name...

Question 19

In JavaScript, strings are not considered objects.

Accepted Answer

The answer of In JavaScript, strings are not considered objects....

Question 20

In some programming languages, when a user presses Enter without typing anything, the input variable's value is set to a constant called NULL.

Accepted Answer

The answer of In some programming languages, when a user...

Question 21

Typical exception types are &#34;invalid format&#34; and &#34;attempted division by zero.&#34;

Accepted Answer

The answer of Typical exception types are &#34;invalid format&#34; and...

Question 22

In a do-while loop, the closing brace is followed by the keyword end, the condition, and a semicolon.

Accepted Answer

The answer of In a do-while loop, the closing brace...

Question 23

In JavaScript, conditions are enclosed in parentheses.

Accepted Answer

The answer of In JavaScript, conditions are enclosed in parentheses....

Question 24

Keywords (such as if, else, do, and while) are uppercase in JavaScript.

Accepted Answer

The answer of Keywords (such as if, else, do, and...

Question 25

One way to validate an e-mail address is to see whether the character @ occurs in the string.

Accepted Answer

The answer of One way to validate an e-mail address...

Question 26

____ is a method in which data is processed noninteractively, requiring prior data validation.&#10;A) Exception handling&#10;B) Batch processing&#10;C) Validation looping&#10;D) Interactive processing

Accepted Answer

The answer of ____ is a method in which data...

Question 27

Transaction processing is done immediately, so it is referred to as ____.&#10;A) batch processing&#10;B) coupling&#10;C) short-circuit evaluation&#10;D) interactive processing

Accepted Answer

The answer of Transaction processing is done immediately, so it...

Question 28

Interactive processing is also known as ____.&#10;A) batch processing&#10;B) coupling&#10;C) short-circuit evaluation&#10;D) real-time processing

Accepted Answer

The answer of Interactive processing is also known as ____.&#10;A)...

Question 29

A(n) ____ is a pop-up box that requires the user to click OK before proceeding.&#10;A) blue box&#10;B) submenu&#10;C) alert box&#10;D) black box

Accepted Answer

The answer of A(n) ____ is a pop-up box that...

Question 30

In JavaScript, constants are declared in the ____ section before any function definitions so that they're available to the ____ section. A)

,

B) , C) , D)
,

Accepted Answer

The answer of In JavaScript, constants are declared in the...

Question 31

In JavaScript, the toUpperCase() function is called by using the ____ format.&#10;A) object.method()&#10;B) alert.object()&#10;C) object.parameter()&#10;D) var.object()

Accepted Answer

The answer of In JavaScript, the toUpperCase() function is called...

Question 32

A module is sometimes called a ____ because those looking at the module do not need to know what it contains internally, as long as they know the module's purpose and how to use it.&#10;A) blue box&#10;B) red box&#10;C) white box&#10;D) black box

Accepted Answer

The answer of A module is sometimes called a ____...

Question 33

A(n) ____ serves as a placeholder in your program until you develop the code.&#10;A) stub&#10;B) array&#10;C) decision table&#10;D) subscript

Accepted Answer

The answer of A(n) ____ serves as a placeholder in...

Question 34

A(n) ____ enables you to test your program so that you can make sure the module is called correctly.&#10;A) stub&#10;B) decision table&#10;C) array&#10;D) subscript

Accepted Answer

The answer of A(n) ____ enables you to test your...

Question 35

A(n) ____ is a loop that checks for valid input and repeats until valid input has been entered.&#10;A) indeterminate loop&#10;B) posttest loop&#10;C) validation loop&#10;D) pretest loop

Accepted Answer

The answer of A(n) ____ is a loop that checks...

Question 36

Functions that operate on strings are called ____.&#10;A) validation functions&#10;B) exceptions&#10;C) multilevel functions&#10;D) string manipulation functions

Accepted Answer

The answer of Functions that operate on strings are called...

Question 37

The function ____ returns True if the text can be converted to a number.&#10;A) isNumeric(str)&#10;B) numberToString(num)&#10;C) isLetter(str)&#10;D) stringToNumber(str)

Accepted Answer

The answer of The function ____ returns True if the...

Question 38

JavaScript has a function called ____ that returns a True value if a string cannot be converted to a number.&#10;A) isNumeric(str)&#10;B) isNaN()&#10;C) numberToString(num)&#10;D) isLetter(str)

Accepted Answer

The answer of JavaScript has a function called ____ that...

Question 39

The ____ returns the number of characters in a string.&#10;A) isNaN()&#10;B) numChars(str)&#10;C) number(str)&#10;D) length(str)

Accepted Answer

The answer of The ____ returns the number of characters...

Question 40

The ____ returns a substring of the original string, starting with the position specified by the start argument and including the number of characters specified by numChars.&#10;A) isNaN()&#10;B) substring(str, start, numChars)&#10;C) isNaN().&#10;D) length(str)

Accepted Answer

The answer of The ____ returns a substring of the...

Question 41

You can use string manipulation functions to check every character in a string, a process sometimes called ____ a string.&#10;A) traversing&#10;B) interactive processing&#10;C) batch processing&#10;D) exception handling

Accepted Answer

The answer of You can use string manipulation functions to...

Question 42

In object-oriented programming, ____ is a method that allows for errors to be detected without having to write error-checking code at every point of input.&#10;A) exception handling&#10;B) batch processing&#10;C) interactive processing&#10;D) string manipulation

Accepted Answer

The answer of In object-oriented programming, ____ is a method...

Question 43

In JavaScript, the ____ statement should be accompanied by an error message, which is not enclosed in parentheses.&#10;A) throw&#10;B) case&#10;C) try&#10;D) catch

Accepted Answer

The answer of In JavaScript, the ____ statement should be...

Question 44

In JavaScript, the ____ block checks to see what the error message is before proceeding.&#10;A) throw&#10;B) case&#10;C) try&#10;D) catch

Accepted Answer

The answer of In JavaScript, the ____ block checks to...

Question 45

A(n) ____ presents a main menu, and then leads users to submenus.&#10;A) black box&#10;B) object&#10;C) multilevel menu&#10;D) alert box

Accepted Answer

The answer of A(n) ____ presents a main menu, and...

Question 46

A(n) ____ can be designed without using modules, but top-down design is easier when you use modules as a starting point for designing a menu.&#10;A) black box&#10;B) object&#10;C) multilevel menu&#10;D) alert box

Accepted Answer

The answer of A(n) ____ can be designed without using...

Question 47

A graphical tool called a(n) ____ can help you keep track of which modules call other modules.&#10;A) UML diagram&#10;B) hierarchy chart&#10;C) decision table&#10;D) flowchart

Accepted Answer

The answer of A graphical tool called a(n) ____ can...

Question 48

A(n) ____ is useful for seeing a program's overall structure as well as providing a guide for making changes.&#10;A) decision table&#10;B) UML diagram&#10;C) hierarchy chart&#10;D) flowchart

Accepted Answer

The answer of A(n) ____ is useful for seeing a...

Question 49

&#10;&#10;-The accompanying diagram is known as a ____.&#10;A) hierarchy chart&#10;B) truth table&#10;C) decision table&#10;D) flowchart

Accepted Answer

The answer of  &#10;&#10;-The accompanying diagram is known as...

Question 50

JavaScript has a built-in method, ____, that takes a character as an argument and returns the position in a string where the character occurs or -1 if the character isn't found.&#10;A) isNaN()&#10;B) indexOf()&#10;C) isNumeric(str)&#10;D) length(str)

Accepted Answer

The answer of JavaScript has a built-in method, ____, that...

Deck 9: Menus and Data Validation