Question 1

What are four of the most frequent errors new programmers make when they first learn to make decisions?

Accepted Answer

New programmers frequently make errors w

Question 2

What type of structure involves choosing between alternative courses of action based on some value within a program?

Accepted Answer

A)  decision 
B)  sequence 
C)  literal 
D)  fixed 
A)  decision 
B)  sequence 
C)  literal 
D)  fixed

Question 3

Explain why the following code sample does not capture the intent of the request "Make sure if the sales code is not 'A' or 'B', the customer gets a 10% discount".What is the correct if statement?
if(salesCode != 'A' || salesCode != 'B')
discount = 0.10;

Accepted Answer

Whenever you use negatives, it is easy t

Question 4

What conditional operator can be used to create a compound Boolean expression as an alternative to if statements?

Accepted Answer

A)  OR 
B)  AND 
C)  XOR 
D)  NOT 
A)  OR 
B)  AND 
C)  XOR 
D)  NOT

Question 5

List the four keywords used in a switch structure and provide a brief description of each.

Accepted Answer

The switch structure uses four keywords:

Question 6

In a switch statement, the keyword return usually terminates each case.

Accepted Answer

A) True 
 B)False

Question 7

What character(s) function as the non-conditional Boolean logical inclusive OR operator?

Accepted Answer

A)  | 
B)  && 
C)  & 
D)  || 
A)  | 
B)  && 
C)  & 
D)  ||

Question 8

Flowchart creators use diamond shapes to indicate alternative courses of action.

Accepted Answer

A) True 
 B)False

Question 9

In a situation where you want to perform one action when a Boolean expression evaluates as true and an alternate action when it evaluates as false, otherwise known as a dual-alternative decision, what sort of statement should you use?

Accepted Answer

A)  if-else 
B)  if 
C)  switch 
D)  fork 
A)  if-else 
B)  if 
C)  switch 
D)  fork

Question 10

Why are all computer decisions true-or-false decisions?

Accepted Answer

When reduced to their most basic form, a

Question 11

What should you use if you wish to execute two or more statements conditionally?

Accepted Answer

A)  A switch statement. 
B)  A block enclosed within a pair of curly braces. 
C)  A defined sequence structure. 
D)  A declared decision structure. 
A)  A switch statement. 
B)  A block enclosed within a pair of curly braces. 
C)  A defined sequence structure. 
D)  A declared decision structure.

Question 12

Explain (in words) how bonuses are assigned in the following example:
if(saleAmount > 1000)
if(saleAmount < 2000)
bonus = 100;
else
bonus = 50;

Accepted Answer

In this example, the following bonuses a

Question 13

The if expression that precedes a block in a decision structure is known as what type of statement?

Accepted Answer

A)  sequence 
B)  conditional 
C)  K & R 
D)  control 
A)  sequence 
B)  conditional 
C)  K & R 
D)  control

Question 14

The following range-checking code works but is somewhat inefficient.Explain why and show how to revise it to be more efficient.
if (saleAmount >= 1000)
commissionRate = 0.08;
else if (saleAmount >= 500)
commissionRate = 0.06;
else if (saleAmount <= 499)
commissionRate = 0.05;

Accepted Answer

This version of the code works, but it i

Question 15

Describe how short-circuit evaluation works when evaluating compound Boolean expressions.Show an example.

Accepted Answer

The expressions in each part of a compou

Question 16

What character(s) function as the non-conditional Boolean logical AND operator in the C# programming language?

Accepted Answer

A)  && 
B)  | 
C)  & 
D)  || 
A)  && 
B)  | 
C)  & 
D)  ||

Question 17

What rule results in an error if you reach the end point of a statement list in a case section?

Accepted Answer

A)  no fall through 
B)  en passant 
C)  break on end 
D)  default 
A)  no fall through 
B)  en passant 
C)  break on end 
D)  default

Question 18

It is illegal to use a block to contain a single statement.

Accepted Answer

A) True 
 B)False

Question 19

In a switch statement, what keyword is followed by one of the possible values that might equal the switch expression?

Accepted Answer

A)  case 
B)  default 
C)  break 
D)  switch 
A)  case 
B)  default 
C)  break 
D)  switch

Question 20

Placing the opening brace of an if block on the same line as the if statement is known as what style of programming?

Accepted Answer

A)  K & R style 
B)  Allman style 
C)  GNU style 
D)  Haskell style 
A)  K & R style 
B)  Allman style 
C)  GNU style 
D)  Haskell style

What are four of the most frequent errors new programmers make when they first learn to make decisions?

What type of structure involves choosing between alternative courses of action based on some value within a program?

Explain why the following code sample does not capture the intent of the request "Make sure if the sales code is not 'A' or 'B', the customer gets a 10% discount".What is the correct if statement? if(salesCode != 'A' || salesCode != 'B') discount = 0.10;

What conditional operator can be used to create a compound Boolean expression as an alternative to if statements?

List the four keywords used in a switch structure and provide a brief description of each.

In a switch statement, the keyword return usually terminates each case.

What character(s) function as the non-conditional Boolean logical inclusive OR operator?

Flowchart creators use diamond shapes to indicate alternative courses of action.

In a situation where you want to perform one action when a Boolean expression evaluates as true and an alternate action when it evaluates as false, otherwise known as a dual-alternative decision, what sort of statement should you use?

Why are all computer decisions true-or-false decisions?

What should you use if you wish to execute two or more statements conditionally?

Explain (in words) how bonuses are assigned in the following example: if(saleAmount > 1000) if(saleAmount < 2000) bonus = 100; else bonus = 50;

The if expression that precedes a block in a decision structure is known as what type of statement?

The following range-checking code works but is somewhat inefficient.Explain why and show how to revise it to be more efficient. if (saleAmount >= 1000) commissionRate = 0.08; else if (saleAmount >= 500) commissionRate = 0.06; else if (saleAmount <= 499) commissionRate = 0.05;

Describe how short-circuit evaluation works when evaluating compound Boolean expressions.Show an example.

What character(s) function as the non-conditional Boolean logical AND operator in the C# programming language?

What rule results in an error if you reach the end point of a statement list in a case section?

It is illegal to use a block to contain a single statement.

In a switch statement, what keyword is followed by one of the possible values that might equal the switch expression?

Placing the opening brace of an if block on the same line as the if statement is known as what style of programming?

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Looping

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Introduction to Inheritance

Exception Handling

Using Controls

Handling Events

Files and Streams

Filters

Exam 15: Making Decisions

What are four of the most frequent errors new programmers make when they first learn to make decisions?

What type of structure involves choosing between alternative courses of action based on some value within a program?

Explain why the following code sample does not capture the intent of the request "Make sure if the sales code is not 'A' or 'B', the customer gets a 10% discount".What is the correct if statement? if(salesCode != 'A' || salesCode != 'B') discount = 0.10;

What conditional operator can be used to create a compound Boolean expression as an alternative to if statements?

List the four keywords used in a switch structure and provide a brief description of each.

In a switch statement, the keyword return usually terminates each case.

What character(s) function as the non-conditional Boolean logical inclusive OR operator?

Flowchart creators use diamond shapes to indicate alternative courses of action.

In a situation where you want to perform one action when a Boolean expression evaluates as true and an alternate action when it evaluates as false, otherwise known as a dual-alternative decision, what sort of statement should you use?

Why are all computer decisions true-or-false decisions?

What should you use if you wish to execute two or more statements conditionally?

Explain (in words) how bonuses are assigned in the following example: if(saleAmount > 1000) if(saleAmount < 2000) bonus = 100; else bonus = 50;

The if expression that precedes a block in a decision structure is known as what type of statement?

The following range-checking code works but is somewhat inefficient.Explain why and show how to revise it to be more efficient. if (saleAmount >= 1000) commissionRate = 0.08; else if (saleAmount >= 500) commissionRate = 0.06; else if (saleAmount <= 499) commissionRate = 0.05;

Describe how short-circuit evaluation works when evaluating compound Boolean expressions.Show an example.

What character(s) function as the non-conditional Boolean logical AND operator in the C# programming language?

What rule results in an error if you reach the end point of a statement list in a case section?

It is illegal to use a block to contain a single statement.

In a switch statement, what keyword is followed by one of the possible values that might equal the switch expression?

Placing the opening brace of an if block on the same line as the if statement is known as what style of programming?

A First Program Using C#

Using Data

Using Gui Objects and the Visual Studio Ide

Looping

Using Arrays

Using Methods

Advanced Method Concepts

Using Classes and Objects

Introduction to Inheritance

Exception Handling

Using Controls

Handling Events

Files and Streams

Filters