Question 1

if (value1 > value2) largestOne = value1;
Else
If (value1 < value2)
LargestOne = value2;
Else
LargestOne = -(value1);
Using the nested if program statements, assuming value1 is 100 and value2 is 100, what is stored in largestOne above?
A) value1
B) value2
C) -(value1)
D) not enough information is given

Accepted Answer

Since value1 is equal to value2, neither of the first two conditions are true, so the else statement is executed. This means that largestOne will be assigned the negative of value1, which is -100.

Question 2

What is the rule for lining up, or matching, elses?
A) The first else goes with the first if.
B) Else goes with the closest previous if that does not have its own else.
C) The else goes with the one that is indented identically to it.
D) Else matches the closest if that follows it.

Accepted Answer

According to the common convention in programming, the else should be lined up or matched with the closest previous if that does not have its own else attached to it. This ensures better readability and clarity of the code.

Question 3

When you place an if statement within another if statement, ____.
A) a syntax error is generated
B) curly braces are required
C) you create a switch statement
D) you create a nested if statement

Accepted Answer

Placing an if statement within another if statement creates a nested if statement, which is a common programming technique for handling complex conditions.

Question 4

switch (phoneDigit)
{
    case 1:   num = 1;
     break;
    case 2:   num = 2;
     break;
    case 3:   num = 3;
     break;
    case 4:   num = 4;
     break;
    default:  num = 0;
                 break;
}
Looking at the example above, what happens if the break is omitted?
A) a syntax error is generated
B) num is always assigned 0
C) num is never assigned a value
D) num is assigned 1

Accepted Answer

The answer of switch (phoneDigit)
{
    case 1:   num = 1;
     break;
    case...

Question 5

switch (phoneDigit)
{
    case 1:   num = 1;
     break;
    case 2:   num = 2;
     break;
    case 3:   num = 3;
     break;
    case 4:   num = 4;
     break;
    default:  num = 0;
                 break;
}
Looking at the example above, when phoneDigit has a value of 'Q', what value is stored in num?
A) 1
B) 0
C) Q
D) not enough information given

Accepted Answer

Since 'Q' is not one of the cases listed, the default case will be executed which sets num to 0.

Question 6

Which of the following statements regarding curly braces is NOT correct as they relate to their use with an if statement?
A) They are required when there is more than one statement following the if or else.
B) They can be added to increase readability.
C) They are used to block three or more statements.
D) They can be used with the true statements and omitted with the false statements.

Accepted Answer

The answer of Which of the following statements regarding curly...

Question 7

Which of the following statements is NOT true regarding switch statements?
A) The expression is sometimes called the selector.
B) Default is only executed when there is no match.
C) Default is required.
D) A variable cannot be used as the case label.

Accepted Answer

Default is not required in a switch statement. It is optional and is only executed when there is no match for any of the cases.

Question 8

if (amount > 1000)
    result = 1;
Else
   if (amount > 500)
      result = 2;
   else
      if (amount > 100)
          result = 3;
      else
          result = 4;
Using the above code segment, w hat is stored in result when amount is equal to 876?
A) 1
B) 2
C) 3
D) 4

Accepted Answer

Since 876 is greater than 500 but not greater than 1000, it falls into the second condition, assigning the value 2 to result.

Question 9

if (a > 10)
   if (b > 10)
      if (c > 10)
          result =  1;
      else
          if (b > 100)
             result = 2;
          else
Result = 3;
    else
      result = 4;
  else
    result = 5;
Using the above code segment, w hat is stored in result when a, b and c are equal to 200?
A) 1
B) 2
C) 3
D) 4

Accepted Answer

Since a, b, and c are all equal to 200, which is greater than 10, the conditions for a > 10, b > 10, and c > 10 are all true, leading to result being set to 1.

Question 10

When a single variable may need to be tested for five different values, the most readable solution would be a(n) ____.
A) one-way if statement
B) two-way if statement
C) switch statement
D) nested if....else statement

Accepted Answer

When there is a need to test a single variable for multiple values, a switch statement is the most appropriate choice. It allows for cleaner, more readable code compared to multiple if statements.

Question 11

if (amount > 1000)
    result = 1;
Else
   if (amount > 500)
      result = 2;
   else
      if (amount > 100)
          result = 3;
      else
          result = 4;
Using the above code segment, w hat is stored in result when amount is equal to 14?
A) 1
B) 2
C) 3
D) 4

Accepted Answer

Since 14 is less than 100, the code will skip the first two conditions and the third condition will also be false. Therefore, the final else statement will be executed and result will be assigned a value of 4.

Question 12

The switch statement case value can evaluate to all of the following EXCEPT ____.
A) double
B) int
C) string
D) char

Accepted Answer

The switch statement case value can evaluate to int, char, string, enum, or any other integer-like data type, but not double.

Question 13

if (aValue < largest ) result = aValue;
Else
Result = largest;
What happens when aValue is equal to largest in the program segment above?
A) result is assigned aValue
B) result is assigned largest
C) nothing, neither assignment statement is executed
D) an error is reported

Accepted Answer

When aValue is equal to largest, the condition in the if statement (aValue < largest) evaluates to false, leading to the execution of the else block. Therefore, result is assigned the value of largest.

Question 14

A company issues $5,000.00 bonuses at the end of the year to all employees who earn less than $100,000. Salary and bonus are both defined as double data types. Which of the following selection statements would assign the correct amount to bonus?
A) if (salary < $100,000) bonus == $5000;
B) if (salary < 100000) bonus = 5000;
C) if (salary <= 100000) bonus = 5000;
D) if (salary < 100000); bonus = $5000;

Accepted Answer

Option B is correct because it uses the correct syntax for a conditional statement in many programming languages, comparing the salary to 100000 without a dollar sign or commas, and correctly assigns the bonus using a single equals sign.

Question 15

if (amount > 1000)
    result = 1;
Else
   if (amount > 500)
      result = 2;
   else
      if (amount > 100)
          result = 3;
      else
          result = 4;
Using the above code segment, what is stored in result when amount is equal to 12000?
A) 1
B) 2
C) 3
D) 4

Accepted Answer

Since the amount (12000) is greater than 1000, the first condition is satisfied and result is set to 1.

Question 16

if (examScore > 89)
     grade = 'A';
     Console.WriteLine("Excellent");
Using the code snippet above, when does Excellent get displayed?
A) whenever the score is greater than 89
B) when the score is less than or equal to 89
C) never, a syntax error is generated
D) every time the program is run

Accepted Answer

The answer of if (examScore > 89)
     grade = 'A';
    ...

Question 17

How can the compound conditional expression ((average > 79 && average <= 89)) be written to eliminate the logical operator - without changing the logic? A) remove the && and create a nested if statement B) (average > 79 <= 89) C) by replacing the && with || D) (79 > average <= 89)

Accepted Answer

The && operator can be removed by creating a nested if statement. The first if statement would check if the average is greater than 79, and the second if statement would check if the average is less than or equal to 89.

Question 18

if (a > 10)
   if (b > 10)
      if (c > 10)
          result =  1;
      else
          if (b > 100)
             result = 2;
          else
Result = 3;
    else
      result = 4;
  else
    result = 5;
What is stored in result when a is equal to zero, b and c are equal to 100?
A) 1
B) 3
C) 4
D) 5

Accepted Answer

Since a is equal to zero, which does not satisfy the first condition (a > 10), the program directly jumps to the last else statement, assigning the value 5 to result.

Question 19

if (examScore > 89);
     grade = 'A';
Using the code snippet above, when does grade get assigned a value of 'A'?
A) whenever the score is greater than 89
B) when the score is less than or equal to 89
C) never, a syntax error is generated
D) every time the program is run

Accepted Answer

The semicolon after the if statement effectively terminates it, causing the assignment of 'A' to grade to happen unconditionally, every time the program runs.

Question 20

Placing a semicolon onto the end of the conditional one-way if statement ____.
A) causes the expression to evaluate to false
B) produces a syntax error
C) causes the expression to evaluate to true
D) produces a null empty bodied true statement

Accepted Answer

Placing a semicolon at the end of a one-way if statement effectively creates an empty statement for the body of the if condition. This means the if condition is true, but it does nothing as its body is empty, hence a "null empty bodied true statement."

Quiz 5: Making Decisions

if (value1 > value2) largestOne = value1; Else If (value1 < value2) LargestOne = value2; Else LargestOne = -(value1) ; Using the nested if program statements, assuming value1 is 100 and value2 is 100, what is stored in largestOne above?

What is the rule for lining up, or matching, elses?

When you place an if statement within another if statement, ____.

switch (phoneDigit) { case 1: num = 1; break; case 2: num = 2; break; case 3: num = 3; break; case 4: num = 4; break; default: num = 0; break; } Looking at the example above, what happens if the break is omitted?

switch (phoneDigit) { case 1: num = 1; break; case 2: num = 2; break; case 3: num = 3; break; case 4: num = 4; break; default: num = 0; break; } Looking at the example above, when phoneDigit has a value of 'Q', what value is stored in num?

Which of the following statements regarding curly braces is NOT correct as they relate to their use with an if statement?

Which of the following statements is NOT true regarding switch statements?

if (amount > 1000) result = 1; Else if (amount > 500) result = 2; else if (amount > 100) result = 3; else result = 4; Using the above code segment, w hat is stored in result when amount is equal to 876?

if (a > 10) if (b > 10) if (c > 10) result = 1; else if (b > 100) result = 2; else Result = 3; else result = 4; else result = 5; Using the above code segment, w hat is stored in result when a, b and c are equal to 200?

When a single variable may need to be tested for five different values, the most readable solution would be a(n) ____.

if (amount > 1000) result = 1; Else if (amount > 500) result = 2; else if (amount > 100) result = 3; else result = 4; Using the above code segment, w hat is stored in result when amount is equal to 14?

The switch statement case value can evaluate to all of the following EXCEPT ____.

if (aValue < largest ) result = aValue; Else Result = largest; What happens when aValue is equal to largest in the program segment above?

A company issues $5,000.00 bonuses at the end of the year to all employees who earn less than $100,000. Salary and bonus are both defined as double data types. Which of the following selection statements would assign the correct amount to bonus?

if (amount > 1000) result = 1; Else if (amount > 500) result = 2; else if (amount > 100) result = 3; else result = 4; Using the above code segment, what is stored in result when amount is equal to 12000?

if (examScore > 89) grade = 'A'; Console.WriteLine("Excellent") ; Using the code snippet above, when does Excellent get displayed?

How can the compound conditional expression ((average > 79 && average <= 89) ) be written to eliminate the logical operator - without changing the logic?

if (a > 10) if (b > 10) if (c > 10) result = 1; else if (b > 100) result = 2; else Result = 3; else result = 4; else result = 5; What is stored in result when a is equal to zero, b and c are equal to 100?

if (examScore > 89) ; grade = 'A'; Using the code snippet above, when does grade get assigned a value of 'A'?

Placing a semicolon onto the end of the conditional one-way if statement ____.