Deck 3: Processing Data

Question 1

The TextBox tool is located in the ____________ group of the Toolbox.

A) Common Controls
B) Dialog
C) Components
D) Containers

Answer 1

A

Question 2

A common operation that performed on strings is ____________, or appending one string to the end of another string.

A) extending
B) combination
C) concatenation
D) affixing

Answer 2

C

Question 3

Assuming a string variable named city has already been declared, which one of the following statements assigns the string literal "Vienna" to the variable?

A) "Vienna" = city;
B) city + "Vienna";
C) city("Vienna");
D) city = "Vienna";

Answer 3

D

Question 4

Fundamental types of data, such as strings, integers, and real numbers are known as ____________.

A) fundamental data types
B) primitive data types
C) natural data types
D) basic data types

Question 5

A variable's declaration statement must appear ____________ any other statements in the method that use the variable.

A) after
B) before
C) near
D) in

Question 6

A(n) ____________ identifies a variable in the program code.

A) compiler signature
B) variable name
C) identifying bit
D) hash tag

Question 7

A(n) ____________ specifies a variable's name and data type.

A) variable declaration
B) data indicator
C) object tag
D) source entity

Question 8

A(n) ____________ control is a rectangular area on the form that can accept keyboard input from the user.

A) Label
B) PictureBox
C) Input
D) TextBox

Question 9

A(n) ____________ is a storage location in memory that is represented by a name.

A) declaration
B) sector
C) variable
D) instance

Question 10

In code, if you want to retrieve the data that has been typed into a TextBox, you simply retrieve the contents of the control's ____________ property.

A) Output
B) String
C) Text
D) Data

Question 11

Which one of the following statements declares a string variable named message?

A) message string;
B) string = message;
C) string message;
D) string + message;

Question 12

When the user types into a TextBox control, the text is stored in the control's ____________ property.

A) Text
B) Input
C) String
D) Value

Question 13

A variable's ____________ indicates the type of data that the variable will hold.

A) name
B) location in memory
C) data type
D) assignment value

Question 14

Which one of the following is the general format for a variable declaration statement?

A) VariableName DataType;
B) DataType VariableName;
C) DataName VariableType;
D) NameType VaraibleData;

Question 15

A(n) ____________ variable belongs to the method in which it is declared, and only statements inside that method can access the variable.

A) limited
B) local
C) global
D) static

Question 16

Assuming a string variable named movieTitle has already been declared, which one of the following statements combines the strings "The " and "Hobbit" and then assigns the resulting string to the variable?

A) movieTitle("The ", "Hobbit");
B) "The " + "Hobbit" = moveTitle;
C) movieTitle = "The " & "Hobbit";
D) movieTitle = "The " + "Hobbit";

Question 17

The ____________ operator produces a string that is the combination of the two strings used as its operands.

A) +
B) =
C) *
D) &

Question 18

A variable of the ____________ data type can hold any string of characters, such as a person's name, address, password, and so on.

A) int
B) double
C) string
D) decimal

Question 19

Which one of the following statements clears the Text property of a TextBox control named addressTextBox?

A) addressTextBox.Text = Text.Clear;
B) addressTextBox.Text = "";
C) addressTextBox = Nothing;
D) addressTextBox.Empty();

Question 20

Which one of the following statements assigns the value contained in the Text property of a TextBox control named ageTextBox to the Text Property of a Label control named ageLabel?

A) ageLabel = ageTextBox;
B) ageTextBox.Text = ageLabel.Text;
C) ageLabel.Text = ageTextBox.Text;
D) ageTextBox = ageLabel;

Question 21

Which one of the following statements initializes a variable with an integer literal?

A) int score = 2500;
B) decimal total = 156.78m;
C) double rate = 0.00435;
D) string name = "Michelle";

Question 22

You can assign a value to a variable only if the value is compatible with the variable's ____________.

A) data type
B) name
C) scope
D) lifetime

Question 23

Which one of the following statements declares the string variables city, state, and zip using a single declaration statement?

A) string city, state, zip;
B) string city, string state, string zip;
C) string city; state; zip;
D) string city_state_zip;

Question 24

You cannot declare two variables with the same ____________ in the same scope.

A) lifetime
B) data type
C) name
D) value

Question 25

A numeric literal that is treated as an int is called a(n) ____________.

A) real number
B) integer literal
C) natural literal
D) common value

Question 26

The ____________ data type is used to store any number that might have a fractional part.

A) string
B) int
C) double
D) decimal

Question 27

When declaring multiple variables with one declaration statement, use ____________ to separate the variable names.

A) semicolons (;)
B) underscores (_)
C) asterisks (*)
D) commas (,)

Question 28

A ____________ is a number that is written into the programs code.

A) numeric literal
B) binary constant
C) real value
D) source digit

Question 29

When you append the letter M or m to a numeric literal it is referred to as a ____________.

A) monetary literal
B) double literal
C) decimal literal
D) mnemonic literal

Question 30

One way to make sure that a variable has been assigned a value is to ___________ the variable with a value when you declare it.

A) initialize
B) instantiate
C) concatenate
D) compare

Question 31

A ____________ holds only one value at a time.

A) program
B) data type
C) method
D) variable

Question 32

A variable of the ____________ data type can hold whole numbers only.

A) string
B) int
C) double
D) decimal

Question 33

A ____________ variable's scope begins at the variable's declaration and ends at the end of the method in which the variable is declared.

A) global
B) static
C) local
D) basic

Question 34

Which one of the following statements initializes a variable with a double literal?

A) string modelNumber = "R2C32";
B) double percentage = 23.59;
C) int width = 150;
D) decimal bonus = 0.99m;

Question 35

The ____________ is commonly used in financial applications because it can store real numbers with a great deal of precision.

A) string
B) int
C) double
D) decimal

Question 36

A variable's ____________ is the time period during which the variable exists in memory while the program is executing.

A) span
B) lifetime
C) instance
D) latency

Question 37

Which one of the following statements initializes the color variable with the string "red"?

A) color = "red";
B) string color = "red";
C) "red" = string color;
D) string color("red");

Question 38

When typing most statements, you can simply press the ____________ key when you reach an appropriate point to continue the statement on the next line.

A) Enter
B) Tab
C) X
D) Shift

Question 39

A numeric literal that is written with a decimal point is called a ____________.

A) real number
B) floating-point value
C) decimal literal
D) double literal

Question 40

Programmers use the term ____________ to describe the part of a program in which a variable may be accessed.

A) scope
B) lifetime
C) method
D) accessibility

Question 41

A programmer's tools for performing calculations are ____________.

A) variables
B) controls
C) math operators
D) expressions

Question 42

Parts of a mathematical expression may be grouped with ____________ to force some operations to be performed before others.

A) parentheses
B) double quotation marks
C) braces
D) semicolons

Question 43

The values on the right and left of a math operator are called ____________.

A) factors
B) derivatives
C) operands
D) identities

Question 44

You cannot assign a double or a decimal value to an int variable because such an assignment could result in ____________.

A) buffer overflow
B) compiler parse errors
C) a loss of data
D) value sharing conflicts

Question 45

Which one of the following statements initializes a variable with a decimal literal?

A) string displayPrice = "$14.99";
B) decimal budget = 450m;
C) int inventory = 150;
D) double volume = 30.25;

Question 46

Which one of the following assignment statements, for variables of the decimal data type, will cause an error?

A) decimal cost = 0.99m;
B) decimal retail = 100;
C) decimal wholesale = 50.0;
D) decimal fee = 0.01m;

Question 47

When an operation is performed on two int values, the result will be a(n) ____________.

A) decimal
B) double
C) string
D) int

Question 48

When a math expression involves an int and a decimal, the int is temporarily converted to a(n) ____________, and the result is a decimal.

A) decimal
B) double
C) string
D) int

Question 49

Which one of the following assignment statements, for variables of the double data type, will cause an error?

A) double density = 34.12;
B) double length = 0.5;
C) double bonus = 24.95m;
D) double depth = 1200;

Question 50

C# offers a special set of operators known as ____________ that are designed specifically for changing the value of a variable without having to type the variable name twice.

A) identity operators
B) combined assignment operators
C) quick-change operators
D) assessment operators

Question 51

Look at the following code: int distance; // Declare distance as an int
Double half; // Declare half as a double
Distance = 35; // Assign 35 to distance
Half = distance / 2; // Calculate half the distance
What is the value that is assigned to the half variable?

A) 70
B) 17.5
C) 18
D) 17

Question 52

When an operation is performed on two double values, the result will be a(n) ____________.

A) int
B) double
C) string
D) decimal

Question 53

The ____________ dictates which operations are performed first in a mathematical expression.

A) least significant value
B) order of operations
C) compiler version
D) operator position

Question 54

The process of dropping a number's fractional part is called ____________.

A) rounding
B) diminution
C) reduction
D) truncation

Question 55

Math expression involving a double and a(n) ____________ are not allowed unless a cast operator is used to convert one of the operands.

A) int
B) double
C) decimal
D) All of these

Question 56

When an operation is performed on two decimal values, the result will be a(n) ____________.

A) string
B) int
C) decimal
D) double

Question 57

You can use a(n) ____________ to explicitly convert a value from one numeric data type to another, even if the conversion might result in a loss of data.

A) cast operator
B) conversion formula
C) data binding
D) explicit operator

Question 58

A(n) ____________ performs a calculation and gives a value.

A) math expression
B) algorithm
C) data utility
D) variable

Question 59

To convert a string to any of the numeric data types, we use a family of methods in the .NET Framework known as the ____________.

A) Convert methods
B) itoa methods
C) ToString methods
D) Parse methods

Question 60

When a math expression involves an int and a double, the int is temporarily converted to a(n) ____________, and the result is a double.

A) int
B) decimal
C) string
D) double

Question 61

The ____________ contains one or more statements that can potentially throw an exception.

A) break block
B) catch block
C) try block
D) run block

Question 62

____________ ("P" or "p") causes the number to be multiplied by 100 and displayed with a trailing space and % sign.

A) Percent format
B) Currency format
C) Exponential format
D) Number format

Question 63

In C#, an exception handler is written with the ____________ statement.

A) try-catch
B) catch-try
C) run-break
D) break-run

Question 64

When you pass the formatting string ____________ to the ToString method, the number is displayed with comma separators and a decimal point.

A) "E" or "e"
B) "C" or "c"
C) "N" or "n"
D) "F" or "f"

Question 65

In C#, all variables have a(n) ____________ method that you can call to convert the variable's value to a string.

A) ToString
B) Convert
C) Parse
D) Text

Question 66

The ____________ method can be used to convert a string to a decimal.

A) decimal.ToString
B) Parse.decimal
C) ToString.decimal
D) decimal.Parse

Question 67

When using the ____________ operator, if one operand is a number and the other operand is a string, the number will be implicitly converted to a string, and both operands will be concatenated.

A) &
B) *
C) /
D) +

Question 68

____________ ("E" or "e") displays numeric values in scientific notation.

A) Number format
B) Percent format
C) Currency format
D) Exponential format

Question 69

A(n) ____________ is an unexpected error that occurs while a program is running, causing the program to halt if the error is not properly dealt with.

A) bug
B) exception
C) logic error
D) illegal operation

Question 70

Code that responds to exceptions when they are thrown and prevents the program from abruptly crashing is called a(n) _____________.

A) catch-all
B) debugger
C) exception handler
D) critical state handler

Question 71

When you call the ToString method, you can optionally pass a(n) ____________ as an argument to the method to indicate that you want the number to appear formatted in a specific way when it is returned as a string from the method.

A) formatting string
B) style specifier
C) output value
D) design element

Question 72

In computer science, the term ____________ typically means to analyze a string of characters for some purpose.

A) compile
B) decrypt
C) scan
D) parse

Question 73

You can use the ____________ formatting strings with integers to specify the minimum width for displaying the number.

A) "D" or "d"
B) "E" or "e"
C) "F" or "f"
D) "P" or "p"

Question 74

When an exception is thrown, the application stops running and Visual Studio goes into a special mode known as ____________.

A) debug mode
B) break mode
C) exception mode
D) validation mode

Question 75

The ____________ method can be used to convert a string to an int.

A) int.Parse
B) Parse.int
C) Parse.ToString.int
D) ToString.Parse.int

Question 76

When you pass the formatting string ____________ to the ToString method, the number is returned formatted as currency.

A) "C" or "c"
B) "F" or "f"
C) "E" or "e"
D) "N" or "n"

Question 77

You can call the ToString method using the following general format:

A) ToString.variableName()
B) ToString(variableName)
C) variableName.ToString()
D) To.variableName.String()

Question 78

A piece of data that is passed into a method is known as a(n) ____________.

A) argument
B) delimiter
C) descriptor
D) factor

Question 79

____________ ("F" or "f") displays numeric values with no thousands separator and a decimal point.

A) Number format
B) Fixed-Point format
C) Exponential format
D) Percent format

Question 80

The ____________ method can be used to convert a string to a double.

A) Parse.double
B) double.Parse
C) ToString.double
D) double.ToString