Question

a. Create a Payroll system in Java to do the following:

Design a class employee with member’s eid, ename, basicsalary, overtime,
allowance, deduction, leave, netsal. (basicsalary, overtime, allowance, deduction,
leave , netsal are all double values).
Design the program for 3 employees(Array of Objects)
Methods:
1) Read() : Accept eid, ename and basicsalary from keyboard
2) Calculate() : Perform the following:-
o Accept overtimehours and calculate overtime =( basic / 240 ) * overtimehours
o Accept housingallowance and other allowance and calculate allowance =
housingallowance + other allowance
o Accept deductionhours and calculate deduction = (basic / 240 ) *
deductionhours
o Accept leavedays and calculate leave =(basic / 30 ) * leavedays
o Calculate net = basicsalary + overtime + allowance - deduction- leave
3) Print ():- Print all the members.
b. Compile and run the error-free program.
c. Copy the complied and executed Java program and attach a screen shot of the output
as well.

Answer 1

Employee.java

import java.util.Scanner;

public class Employee {
private int eId;
private String eName;
private double basicSalary, overtime, allowance, deduction, leave, netSalary;
  
public Employee()
{
this.eId = 0;
this.eName = "";
this.basicSalary = this.allowance = this.deduction = this.leave = this.netSalary = this.overtime = 0.0;
}

public Employee(int eId, String eName, double basicSalary) {
this.eId = eId;
this.eName = eName;
this.basicSalary = basicSalary;
this.allowance = this.deduction = this.leave = this.netSalary = this.overtime = 0.0;
}

public int geteId() {
return eId;
}

public void seteId(int eId) {
this.eId = eId;
}

public String geteName() {
return eName;
}

public void seteName(String eName) {
this.eName = eName;
}

public double getBasicSalary() {
return basicSalary;
}

public void setBasicSalary(double basicSalary) {
this.basicSalary = basicSalary;
}

public double getOvertime() {
return overtime;
}

public void setOvertime(double overtime) {
this.overtime = overtime;
}

public double getAllowance() {
return allowance;
}

public void setAllowance(double allowance) {
this.allowance = allowance;
}

public double getDeduction() {
return deduction;
}

public void setDeduction(double deduction) {
this.deduction = deduction;
}

public double getLeave() {
return leave;
}

public void setLeave(double leave) {
this.leave = leave;
}

public double getNetSalary() {
return netSalary;
}

public void setNetSalary(double netSalary) {
this.netSalary = netSalary;
}
  
public void Read()
{
Scanner sc = new Scanner(System.in);
System.out.print("Enter employee id: ");
int id = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter employee name: ");
String empName = sc.nextLine().trim();
System.out.print("Enter employee basic salary: ");
double bSalary = Double.parseDouble(sc.nextLine().trim());
seteId(id);
seteName(empName);
setBasicSalary(bSalary);
}
  
public void Calculate()
{
Scanner sc = new Scanner(System.in);
System.out.print("Enter overtime hours: ");
int nOvertime = Integer.parseInt(sc.nextLine().trim());
double over = (getBasicSalary() / 240) * nOvertime;
setOvertime(over);
System.out.print("Enter housing allowance: ");
double houseAllowance = Double.parseDouble(sc.nextLine().trim());
System.out.print("Enter other allowance: ");
double otherAllowance = Double.parseDouble(sc.nextLine().trim());
setAllowance(houseAllowance + otherAllowance);
System.out.print("Enter deduction hours: ");
int nDeductionHours = Integer.parseInt(sc.nextLine().trim());
double deduct = (getBasicSalary() / 240) * nDeductionHours;
setDeduction(deduct);
System.out.print("Enter number of leave days: ");
int nLeaveDays = Integer.parseInt(sc.nextLine().trim());
double leaveAmt = (getBasicSalary() / 30) * nLeaveDays;
setLeave(leaveAmt);
setNetSalary(getBasicSalary() + getOvertime() + getAllowance() - getDeduction() - getLeave());
}
  
public void Print()
{
System.out.println("Employee Id: " + geteId() + ", Employee Name: " + geteName() + ", Basic Salary: $" + String.format("%.2f", getBasicSalary()) + "\n"
+ "Overtime: $" + String.format("%.2f", getOvertime()) + "\n"
+ "Allowance: $" + String.format("%.2f", getAllowance()) + "\n"
+ "Deduction: $" + String.format("%.2f", getDeduction()) + "\n"
+ "Leave: $" + String.format("%.2f", getLeave()) + "\n"
+ "Net Salary: $" + String.format("%.2f", getNetSalary()) + "\n");
}
}

EmployeeMain.java (Main class)

import java.util.ArrayList;
import java.util.Scanner;

public class EmployeeMain {
  
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
ArrayList<Employee> employees = new ArrayList<>();
  
System.out.print("How many employees? ");
int n = Integer.parseInt(sc.nextLine().trim());
while(n <= 0)
{
System.out.println("Number of employees should be greater than 0!\n");
System.out.print("How many employees? ");
n = Integer.parseInt(sc.nextLine().trim());
}
System.out.println();
  
for(int i = 0; i < n; i++)
{
System.out.println("EMPLOYEE " + (i + 1) + ":\n-----------");
Employee emp = new Employee();
emp.Read();
emp.Calculate();
employees.add(emp);
System.out.println();
}
  
System.out.println("\nALL EMPLOYEE:\n"
+ "-------------");
for(Employee emp : employees)
emp.Print();
System.out.println();
}
}

*********************************************************** SCREENSHOT *****************************************************

run: AA How many employees? 2 EMPLOYEE 1: OR Enter employee id: 188291 Enter employee name: John Smith Enter employee basic salary: 1200.87 Enter overtime hours: 56 Enter housing allowance: 340.95 Enter other allowance: 450 Enter deduction hours: 11 Enter number of leave days: 12 EMPLOYEE 2: Enter employee id: 190045 Enter employee name: Alicia Vaughn Enter employee basic salary: 780.55 Enter overtime hours: 23 Enter housing allowance: 120.54 Enter other allowance: 340.65 Enter deduction hours: 9 Enter number of leave days: 7 ALL EMPLOYEE: Employee Id: 188291, Employee Name: John Smith, Basic Salary: $1200.87 Overtime: $280.20 Allowance: $790.95 Deduction: $55.04 Leave: $480.35 Net Salary: $1736.64 Employee Id: 190045, Employee Name: Alicia Vaughn, Basic Salary: $780.55 Overtime: $74.80 Allowance: $461.19 Deduction: $29.27 Leave: $182.13 Net Salary: $1105.14 BUILD SUCCESSFUL (total time: 1 minute 28 seconds) |