Concept explainers
Videos
a.
Explanation of Solution
Program:
File name: “DrugTests2.java”
//Define a class named DrugTests2
public class DrugTests2
{
//Define a main method
public static void main(String[] args)
{
//Declare the variables and initialize the values
int testedEmployee;
int week;
final int WEEKS = 52;
final int EMPLOYEES = 30;
int[] counts = new int[EMPLOYEES];
int countNeverTested = 0;
int x;
/*For loop to be executed until a list of randomly
selected employees who will be tested each
week for the next 52 weeks*/
for(week = 1; week <= WEEKS; ++week)
{
//Calculate the number of times each employee is selected
testedEmployee = 1 + (int) (Math.random() * EMPLOYEES);
//Print the result
System.out.print("week " + week + " Emp # " +
testedEmployee + " ");
//If remainder of week % 4 equals 0
if(week % 4 == 0)
//Print the result
System.out.println();
//Increment counts
counts[testedEmployee - 1]++;
}
//For loop to be executed until x exceeds 30
for(x = 0; x < EMPLOYEES; ++x)
{
//Print the result
System...
b.
Explanation of Solution
Program:
File name: “DrugTests3.java”
//Define a class named DrugTests3
public class DrugTests3
{
//Define a main method
public static void main(String[] args)
{
//Declare the variables and initialize the values
int testedEmployee;
int week;
final int WEEKS = 52;
final int EMPLOYEES = 30;
int[] counts = new int[EMPLOYEES];
int countNeverTested = 0;
int x;
int previousEmployee = -1;
/*For loop to be executed until a list of randomly
selected employees who will be tested each
week for the next 52 weeks*/
for(week = 1; week <= WEEKS; ++week)
{
/*Calculate the number of times each employee is selected*/
testedEmployee = 1 + (int) (Math.random() * EMPLOYEES);
/*If an employee number is selected
immediately after it was already selected*/
if(testedEmployee == previousEmployee)
{
//Decrement week
week--;
//Print the result
System.out.println("Employee #" + testedEmployee + " was selected two weeks in a row -- making new selection");
}
//Else
else
{
//Print the result
System.out.print("week " + week + " Emp # " +
testedEmployee + " ");
//If remainder of week % 4 equals 0
if(week % 4 == 0)
//Print the result
System...
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Chapter 8 Solutions
MINDTAPV2.0 JAVA PROGRAMMING 2021, 1TERM
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