Question 1

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

Accepted Answer

Default is not required in switch statements. It is optional and is executed only when there is no match with any of the cases. A variable can be used as the case label in switch statements.

Question 2

if (amount > 1000)
result = 1;
else
if (amount > 500)
result = 2;
else
if (amount > 100)
result = 3;
else
result = 4;
-What is stored in result when amount is equal to 14?

Accepted Answer

When amount is 14, it is less than 100. Therefore, the last condition is satisfied and the value 4 is stored in result.

Question 3

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

Accepted Answer

When you place an if statement within another if statement, it is known as a nested if statement. This allows for the testing of multiple conditions and executing different code blocks accordingly.

Question 4

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

Accepted Answer

The case value in a switch statement can evaluate to int, char, string, enum values, or any other integer-type expression. However, it cannot evaluate to double or any other floating-point type.

Question 5

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

Accepted Answer

A switch statement is the most readable solution when there is a need to test a single variable for multiple values. It allows for easy readability and organization of code rather than having multiple if statements.

Question 6

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

Accepted Answer

According to the common convention, else should go with the closest previous if that does not have its own else. This improves the readability and organization of the code.

Question 7

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

Accepted Answer

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

Question 8

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?

Accepted Answer

Since 'a' is not greater than 10, the outermost 'if' condition fails, and the program directly assigns 'result' to 5.

Question 9

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

Question 10

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

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 11

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?

Accepted Answer

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

Question 12

if (amount > 1000)
result = 1;
else
if (amount > 500)
result = 2;
else
if (amount > 100)
result = 3;
else
result = 4;
-What is stored in result when amount is equal to 12000?

Accepted Answer

amount is greater than 1000, so result is 1.

Question 13

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?

Accepted Answer

When phoneDigit is not one of the defined cases (1, 2, 3, 4), the default case will be executed, and num will be assigned a value of 0. Therefore, when phoneDigit has a value of 'Q', num will be assigned a value of 0, as  it's not one of the defined cases.

Question 14

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

Accepted Answer

When aValue is equal to largest, the second line of code will execute and result will be assigned the value of largest.

Question 15

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

Accepted Answer

The answer of if (examScore > 89) grade = 'A';
Console.WriteLine("Excellent");
Using...

Question 16

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,b and c are equal to 200?

Accepted Answer

Since a, b, and c are all greater than 10, the first three conditions are true, so result = 1 is executed.

Question 17

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

Accepted Answer

The answer of How can the compound conditional expression ((average...

Question 18

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?

Accepted Answer

Since value1 and value2 are equal, the first condition (value1 > value2) fails. So the nested if condition becomes (value1 < value2). This also fails as value1 is not less than value2. So the final option is executed which assigns the negative value of value1 to largestOne, which is -(100) = -100.

Question 19

if (amount > 1000)
result = 1;
else
if (amount > 500)
result = 2;
else
if (amount > 100)
result = 3;
else
result = 4;
-What is stored in result when amount is equal to 876?

Accepted Answer

When amount is 876, it is greater than 500 but not greater than 1000, so the second condition is true, and result is set to 2.

Question 20

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?

Accepted Answer

The answer of A company issues $5,000.00 bonuses at the...

Quiz 5: Making Decisions

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; -What is stored in result when amount is equal to 14?

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

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

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

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

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

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?

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

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

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?

if (amount > 1000) result = 1; else if (amount > 500) result = 2; else if (amount > 100) result = 3; else result = 4; -What is stored in result when amount is equal to 12000?

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?

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

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

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,b and c are equal to 200?

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

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?

if (amount > 1000) result = 1; else if (amount > 500) result = 2; else if (amount > 100) result = 3; else result = 4; -What is stored in result when amount is equal to 876?

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?