Answered: lay a paycheck like: Employee’s name:…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

In Java, Implement a simple weekly payroll program. The input will consist
of the employee’s full name, employee’s ID (String), the number of hours
worked per week (double), the hourly rate (double), the income tax is 6%.
Your program should calculate the total gross pay, and the net pay and
display a paycheck like:
Employee’s name: John Smith
Employee’s number: js1200
Hourly rate of pay: 10.50
Hours worked: 36.00
Total Gross Pay: $378.00
Deductions
Tax (6 %): $22.68
Net Pay: 355.32 Dollars
Your program must include the class Employee whose private attributes
are:
- fullName: String
- employeeNumber: String
- payRate: double
- hoursWorked: double
-
(Don’t add any variables to the class Employee)
In addition to that, equip the class Employee with these methods:
- Employee (String fullName, String employeeNumber, double payRate,
double hoursWorked)
This constructor assigns the parametres fullName, employeeNumber,
payrate, hoursWorked to the data members.
- For each of the private data members above, add the Setter and the
Getter
- Override the toString() method to return the String of the form:
[Employee Number/Full Name, x Hours @ y per hour] where x is the
number of hours worked and y is the pay rate. As an example,
[js1200/John Smith, 36 Hours @ 10.5 per hour]

- double netPay (), the private method that returns the net pay of the
employee. The net pay is calculated by deducting 6% from the gross
pay. See sample check above.
- void printCheck (), the method that prints the paycheck of the
employee as shown above. The printCheck method calls the private
netPay method to get the net pay of the employee. So do not
recalculate net pay in this printCheck method
After completing the code of the class Employee, work on the class
Company whose skeleton is provided below. Have all the three classes in
one .java file that you name HW.java.
What is being asked to code is marked in comments throughout HW.java

public class HW {
public static void main(String[] args) {
String fullName = "Erika T. Jones";
String employeeNumber = "ej789";
double payRate = 100.0, hoursWorked = 1.0;
// TA will change the payrate and the hours worked to test your code
Employee e;
e = new Employee(fullName, employeeNumber, payRate, hoursWorked);
System.
out.println(e); // To Test your toString method
e.printCheck(); // This prints the check of Erika T. Jones
Company company = new Company();
company.hire ( new Employee ("Saeed Happy", "sh895" , 2 , 200) );
company.hire (e);

Company.
printCompanyInfo();
company.hire( new Employee("Enrico Torres" , "et897" , 3 , 150) );
//You may add as many employees to company as you want.
//The TAs will add their own employees
//Make sure that each employee of company has a unique employeeNumber
company.printCheck("ab784");
company.deleteEmployeesBySalary(256.36);
company.reverseEmployees();
System.
out.println( company.SearchByName("WaLiD WiLLiAms") );
Company.printEmployees();
System.
out.println("Bye!");
}
}
//____________________________
class Employee {
//Add the private attributes and the methods as mentioned above...
}
//____________________________
class Company {

private ArrayList<Employee> employeeList;
private static String
companyName;
private static String
companyTaxId;
//Add static Setters and Getters for companyName and companyTaxId
//No need to add a Setter and Getter for employeeList
public Company() {
employeeList = new ArrayList<>();
companyName = "People's Place";
companyTaxId = "v1rtua7C0mpan1";
}
public boolean hire ( Employee employee ) {
//Add empoyee to employeeList
//Note well that we can't add an employee whose employeeNumber already //assigned to
another employee. In that case, this method returns false.
//This method returns true otherwise
}
public static void printCompanyInfo() {
//This method prints the compay name, its tax id and the current number //of employees
//You may choose to print that any way you like!
}
public void printEmployees() {
//This methods prints all employees (One employee per line)
//Note that you already have
toString in Employye
}
public int countEmployees( double maxSalary ) {
//This method returns the number of employees paid less than maxSalary
}

public boolean SearchByName (String fullName ) {
//This method returns true if fullName exists as an employee.
//It returns false otherwise
//this is a not a case sensitive search.
}
public void reverseEmployees () {
//This method reverses the order in which the employees were added to //the list.
The last employee is swapped with the first employee, the second last with the second
and so on..
}
public void deleteEmployeesBySalary (double targetSalary ) {
//This method deletes all employees who are paid targetSalary as a net //salary
}
public void printCheck ( String employeeNumber) {
//This method prints the check of the employee whose employee number is
//employeeNumber. It prints NO SUCH EMPLOYEE EXISTS if employeeNumber is //not
a registered employee number.
}
}//end of class Company

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lay a paycheck like: Employee’s name: John Smith Employee’s number: js1200 Hourly rate of pay: 10.50 Hours worked: 36.00 Total Gross Pay: $378.00 Deductions Tax (6 %): $22.68 Net Pay: 355.32 Dollars