Exam 1 (Ch 1 & 2)

Question 1

C# has a set of rules, called ______, that must be followed.

Answer 1

Syntax

Question 2

When you use the __________ approach to solving a problem, you break the problem into subtasks.

Answer 2

Methodical

Question 3

A(n) _______ is a mock-up of screens depicting the look of the final output.

Answer 3

Prototype

Question 4

An object is a(n) ________ of a class.

Answer 4

Instance

Question 5

The most important and frequently used ______ is System.

Answer 5

Namespace

Question 6

A(n) _________ is a user-supplied or user-created name.

Answer 6

Identifier

Question 7

The method _________ is the entry point for all applications. This is where the program begins execution.

Answer 7

Main

Question 8

A(n) __________ is a clear, unambiguous, step-by-step process for solving a problem.

Answer 8

Algorithm

Question 9

A(n) ________ is a collection of one or more statements combined to perform an action.

Answer 9

Method

Question 10

Windows 8, Android, Windows 7, and Linux are types of _______.

Answer 10

System software

Question 11

The Framework Class Library (FCL) includes a number of different ________.

Answer 11

Namespaces

Question 12

________ marks the end of a block comment.

Answer 12

*/

Question 13

Programmers commonly verify that their design is correct by doing a(n) ____.

Answer 13

Desk check

Question 14

One of the rules for creating a(n) ________ is to use a combination of alphabetical characters, numeric digits and the underscore character.

Answer 14

Identifier

Question 15

_______ are predefined reserved identifiers that have special meaning to the compiler.

Answer 15

Keywords

Question 16

Every time you declare a variable in the C# language you are actually _______ a class.

Answer 16

Instantiating

Question 17

The _____ data type is a whole number, between a certain range of values, and contains no decimal point.

Answer 17

int

Question 18

The _______ data type was added to the language to eliminate the problems of loss of precision in mathematical operations that occurred in previous languages.

Answer 18

decimal

Question 19

The _____ is sometimes referred to as the remainder operator.

Answer 19

% mod

Question 20

______ operators provide a shortcut way to write assignment statements using the result as part of the computation.

Answer 20

Compound

Question 21

The C# category of ______ operators appear at the top of the precedence table with the order of operations.

Answer 21

Unary

Question 22

_____ makes a variable temporarily behave as if it is a different type.

Answer 22

Cast

Question 23

In order to place a value in memory that cannot be changed, you add the keyword _____ to the declaration.

Answer 23

const

Question 24

A megabyte is approximately a(n) _______ bytes.

Answer 24

Million

Question 25

\_\_\_\_\_\_ is the universal character-encoding schema that provides a unique number for every character in many different languages.

Answer 25

Unicode

Question 26

A(n) _______ represents an area in the computer memory where a value of a particular data type can be stored. When you declare a(n) \_\_\_\_\_\_\_, you allocate memory for that data item in your program.

Answer 26

Variable

Question 27

When naming local variable identifiers and parameters, use \_\_\_\_\_\_\_\_\_.

Answer 27

Camel case

Question 28

All programs consist of at least one \_\_\_\_\_\_.

Answer 28

Main

Question 29

One option to holding the screen at the end of a program is to invoke Console.Read(). Another option is to call \_\_\_\_\_\_\_. It obtains the next character or function key from the user.

Answer 29

readKey();

Question 30

C# is an object-oriented language as such all the code that you write has to be placed in a(n) \_\_\_\_\_.

Answer 30

Class

Question 31

Software consists of programs, which are sets of instructions telling you how to use the computer. True or False

Answer 31

False

Question 32

The first step in the program development process is

Answer 32

Analysis

Question 33

Comments are considered instructions to the computer. True or False

Answer 33

False

Question 34

moreData = true; An error will be produced when moreData is assigned the boolean variable shown above because the keyword true should be enclosed in double quotation marks. True or False

Answer 34

False

Question 35

An appropriate identifier used to store the total transaction amount is total$Amount. True or False

Answer 35

False

Question 36

Classes, methods, namespaces, and properties follow the Pascal case naming convention, which indicates that the first letter in the identifier is lowercase and the first letter of each subsequent concatenated word is capitalized. True or False

Answer 36

False

Question 37

An int variable would be the most appropriate type for a memory location that will be used to store the monthly membership dues for the computer club. True or False

Answer 37

False

Question 38

The decimal equivalen for 3.42e-5 in scientific notation is .00342 True or False

Answer 38

False

Question 39

The result of 25 % 4 is 6.25. True or False

Answer 39

False

Question 40

The result of "123" + "321" is "123321" True or False

Answer 40

True

Question 41

If aNumber is declared to be of type int with a value of 50, Console.out.WriteLine(aNumber++); displays 51. True or False

Answer 41

False

Question 42

C# allows you to mix numeric integral types and floating-point types in an expression. True or False

Answer 42

True

Question 43

The value $78,888.90 is printed as output when the {1:c) format specifier is used in the following Write statement: Console.Write("{0:c}", 78888.894 True or False

Answer 43

False

Question 44

The binary value for ten is 00001010 True or False

Answer 44

True

Question 45

The number 11111111 in binary is equivalent to the number 255 in decimal True or False

Answer 45

True

Question 46

Base 16, also called the octal numbering system, uses powers of sixteen. True or False

Answer 46

False

Question 47

Hexadecimal uses the symbols 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, G. True or False

Answer 47

False

Question 48

With only eight bits, you can represent 2⁸ or 256 different decimal values. True or False

Answer 48

True

Question 49

Unicode includes representation of 2⁸ or 256 unique characters. True or False

Answer 49

False

Question 50

A machine that has a 64-bit processor can process 64 characters at one time. True or False

Answer 50

False

Question 51

Give examples of data types.

Answer 51

Int, double, string, char

Question 52

Which data type is used to store whole numbers?

Answer 52

int

Question 53

Which data type would you use to store the amount of money it costs for your lunch?

Answer 53

double

Question 54

Declare a memory location to store your GPA

Answer 54

double gpa

Question 55

Show how you would declare a memory location called amount to be of double type with a compile-time initialization fo four dollars and 2 cents.

Answer 55

double amount = 4.02;

Question 56

Show how you would declare a memory location to store the name of your high school.

Answer 56

string nameOfSchool;

Question 57

Show how you would declare a memory location to contain the number of pages in a book and do a compile time initialization of it with a value of 865.

Answer 57

int numberOfPages = 865;

Question 58

The characters T and F are used to represent binary digits. True or False

Answer 58

False

Question 59

A hard dtive that holds 3 gigabytes will store more data than one that holds 10 megabytes. True or False

Answer 59

True

Question 60

\_\_\_ bits make up one byte.

Answer 60

8

Question 61

\_\_\_\_ is used to mark the beginning of an inline comment.

Answer 61

//

Question 62

\_\_\_ is used to mark the beggining of a multiline comment.

Answer 62

/\*

Question 63

A computer machine that has a 32-bit processor with 512 megabytes of RAM could store approximately _____ alphabetic characters in RAM.

Answer 63

512 million

Question 64

ReadKey() is a \_\_\_\_

Answer 64

Method

Question 65

The Write() program statement is added to hold the screen. True or False

Answer 65

False

Question 66

The Main() method must be placed at the beginning of a program. True or False

Answer 66

False

Question 67

A forward slash followed by and asterisk /\* marks the beginning of an inline comment. True or False

Answer 67

False

Question 68

Program statements are called \_\_\_\_\_

Answer 68

Source code

Question 69

Misspelling a name or forgetting to end a statement with a semicolon are examples of _____ errors.

Answer 69

Syntax

Question 70

We are currently in the ____ generation of modern computing.

Answer 70

5th

Question 71

IDE stands for Integrated Development Environment. True or False

Answer 71

True