3.15.1. Pretest

Gym Membership Discount
A gym offers discounts on membership fees based on age and frequency of visits per week. The parameter age is the person's age in years, and visitsPerWeek is the average number of visits per week. The result is the discount percentage encoded as an int. The conditions are:
• If the person is 60 years old or older and visits the gym 3 times or more per week, they get a 30% discount.
• If the person is less than 60 years old and visits the gym 5 times or more per week, they get a 15% discount.
• If neither condition is met, and the person is between 18 and 25 years old (inclusive), they get a 5% discount.
• Otherwise, there is no discount.
Select the correct code for this problem. Only the highlighted lines are different in each option.

• 1. A
• 2. B
• 3. C
• 4. D

Lucky Number
An old witch told us a person's lucky number is determined based on the date and time of their birth. The parameters are day and hour. The day is the day of birth (from 1 to 31), and the hour is the hour of birth (from 0 to 23). According to her, the lucky number is calculated as follows:
• If the day is even and the hour is greater than 12, the lucky number is the sum of the day and the hour.
• If the day is even and the hour is less or equal than 12, the lucky number is the product of the day and the hour.
• If the day is odd and the hour is greater than 10, the lucky number is the hour minus the day.
• If the day is odd and the hour is less or equal than 10, the lucky number is the day minus the hour.
Select the correct code for this problem. Only the highlighted lines are different in each option.

• 1. A
• 2. B
• 3. C
• 4. D

Apartment Cleaning

You and your roommate are deciding whether to clean the apartment. The parameter yourMessiness represents how messy your side of the apartment is, and roommateMessiness represents how messy your roommate’s side is, both in the range from 0 to 20. The result is an int value indicating whether it’s time to clean. Return:

• If either messiness is 5 or less (i.e., it’s still relatively clean), return 0 (no need to clean);

• With the exception that if either messiness is 18 or more (i.e. the apartment is very messy), return 2 (definitely needs to clean);

• Otherwise, return 1 (maybe).

Example Input	Expected Output
shouldClean(4, 3)	0
shouldClean(4, 18)	2
shouldClean(6, 15)	1

public class CleaningDecision { public static int shouldClean(int yourMessiness, int roommateMessiness) { // Your Code Here // } public static void main(String[] args) { System.out.println(shouldClean(4, 3)); // Output: 0 System.out.println(shouldClean(4, 18)); // Output: 2 System.out.println(shouldClean(6, 15)); // Output: 1 } } ==== import static org.junit.Assert.*; import org.junit.Test; import java.io.IOException; import java.util.Arrays; public class RunestoneTests extends CodeTestHelper { public RunestoneTests() { super(); } @Test public void testValue1() throws IOException { CleaningDecision c = new CleaningDecision(); assertTrue(getResults(0, c.shouldClean(4, 3), "shouldClean(4, 3)")); } @Test public void testValue2() throws IOException { CleaningDecision c = new CleaningDecision(); assertTrue(getResults(2, c.shouldClean(4, 18), "shouldClean(4, 18)")); } @Test public void testValue3() throws IOException { CleaningDecision c = new CleaningDecision(); assertTrue(getResults(1, c.shouldClean(6, 15), "shouldClean(6, 15)")); } @Test public void testValue4() throws IOException { CleaningDecision c = new CleaningDecision(); assertTrue(getResults(1, c.shouldClean(10, 15), "Hidden test")); } @Test public void testValue5() throws IOException { CleaningDecision c = new CleaningDecision(); assertTrue(getResults(2, c.shouldClean(18, 3), "Hidden test")); } }

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