Ch. 3

Question 1

Which of the following is in highest-to-lowest order of operator precedence?

• multiplication, division, parentheses
• addition, subtraction, division
• parentheses, multiplication, addition
• None of the above.

Answer 1

parentheses, multiplication, addition

Question 2

A variable is:
- an instruction for the compiler
- a location in memory where a value can be stored
- a description of a value (such as a number or character)
- None of the above.

Answer 2

a location in memory where a value can be stored

Question 3

Concatenation is the process that enables a string and another string or a value of another data type to be combined to form a new string.

True.
False.

Answer 3

True

Question 4

The console window is called the command prompt.
True.
False.

Answer 4

True

Question 5

Special characters can be inserted in comments that affect how the program executes.
True.
False.

Answer 5

False

Question 6

The starting point of a C# program is the __________ method.
Main
Start
Open
None of the above.

Answer 6

Main

Question 7

What will the variable x have at end of the following code?
int x = 10;
x = 20;
x = 30;
x = 10;
10
20
30
The sum of the values
The code will produce an error

Answer 7

10

Question 8

A declaration may declare only one variable at a time.
True.
False.

Answer 8

False

Question 9

Files called assemblies are packaging units for code in C#.
True.
False.

Answer 9

True

Question 10

When a value is placed in a memory location, the previous value in that location is moved to the next available location in memory.
True.
False.

Answer 10

False

Question 11

Where can’t you see errors?
The line where the error occurred
The Error List window
The Solution window
The Command Prompt window

Answer 11

The Solution Window

Question 12

What do the following lines print?
Console.Write(“Welcome to “);
Console.WriteLine(“C# Programming!”);

Welcome to
C# Programming!

Welcome to C# Programming!

Welcome to
C#
Programming!

Welcome
to
C#
Programming!

Answer 12

Welcome to C# Programming!

Question 13

Programmers insert comments in programs to document and improve the readability of their code.
True.
False.

Answer 13

True

Question 14

Binary operators require two operands.
True.
False.

Answer 14

True

Question 15

Namespaces group various C# features into related categories.
True.
False.

Answer 15

True

Question 15

Which of the following is the equality operator?
=
!=
=!
==

Answer 15

==

Question 16

_________ are violations of language rules.
Logic errors
Syntax errors
Run-time errors
None of the above.

Answer 16

Syntax errors

Question 17

The process of reading from a memory location is nondestructive.
True.
False.

Answer 17

True

Question 18

Which of the following represents multiplication?
*
/
%
^

Answer 18

*

Question 19

Interpolation expressions are enclosed in square brackets ([]).
True.
False.

Answer 19

False