Question

Urgent help needed with Java program!

Create necessary classes and a Java application that support the following: Use the Employee class as the base class:

Employee class, which holds following information:

• Employee First Name
• Employee Last Name
• Employee Phone Number
• Employee Address
• Employee id
• Employee Title
• Employee salary
• Create an application that uses the Employee class
  • Constructors –Getters and setters
    • A minimum of 3 constructors including default constructor
  • equals() method
  • Helper methods
  • toString() method

Use Inheritance to create the following additional classes

• Create Secretary class that holds following additional attributes:
  • Office Location (i.e. SCC104)
  • Status (i.e. Retired, Active, Assigned,)
• Create a Supervisor class with the following additional attributes
  • Secretary (Instance of Secretary)
  • Department Name
  • Number of Employees assigned
• Create
  • Constructors –
    • A minimum of 3 constructors including default constructor
  • Getters
  • Setters
  • Helper methods
  • toString() method
  • equals() method
• Create an array of employees which contains
  • Employee (3)
  • Secretary (4)
  • Supervisor (4)

Provide necessary GUI that supports;

- Display Employee Information
- Search for an Employee
- Add Employee
- Edit Employee Information

Answer 1

class Employee {

private String firstName, lastName, phoneNumber, address, title;

private int id;

private double salary;

public Employee() {

firstName = "";

lastName = "";

phoneNumber = "";

address = "";

title = "";

id = 1;

salary = 0.0;

}

public Employee(String firstName, String lastName, String phoneNumber, String address, String title,

double salary) {

id = 0;

this.firstName = firstName;

this.lastName = lastName;

this.phoneNumber = phoneNumber;

this.address = address;

this.title = title;

this.salary = salary;

}

public Employee(String firstName, String lastName, String phoneNumber, String address, String title, int id,

double salary) {

this.firstName = firstName;

this.lastName = lastName;

this.phoneNumber = phoneNumber;

this.address = address;

this.title = title;

this.id = id;

this.salary = salary;

}

public String getFirstName() {

return firstName;

}

public void setFirstName(String firstName) {

this.firstName = firstName;

}

public String getLastName() {

return lastName;

}

public void setLastName(String lastName) {

this.lastName = lastName;

}

public String getPhoneNumber() {

return phoneNumber;

}

public void setPhoneNumber(String phoneNumber) {

this.phoneNumber = phoneNumber;

}

public String getAddress() {

return address;

}

public void setAddress(String address) {

this.address = address;

}

public String getTitle() {

return title;

}

public void setTitle(String title) {

this.title = title;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public double getSalary() {

return salary;

}

public void setSalary(double salary) {

this.salary = salary;

}

@Override

public int hashCode() {

final int prime = 31;

int result = 1;

result = prime * result + ((address == null) ? 0 : address.hashCode());

result = prime * result + ((firstName == null) ? 0 : firstName.hashCode());

result = prime * result + id;

result = prime * result + ((lastName == null) ? 0 : lastName.hashCode());

result = prime * result + ((phoneNumber == null) ? 0 : phoneNumber.hashCode());

long temp;

temp = Double.doubleToLongBits(salary);

result = prime * result + (int) (temp ^ (temp >>> 32));

result = prime * result + ((title == null) ? 0 : title.hashCode());

return result;

}

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

if (obj == null)

return false;

if (getClass() != obj.getClass())

return false;

Employee other = (Employee) obj;

if (address == null) {

if (other.address != null)

return false;

} else if (!address.equals(other.address))

return false;

if (firstName == null) {

if (other.firstName != null)

return false;

} else if (!firstName.equals(other.firstName))

return false;

if (id != other.id)

return false;

if (lastName == null) {

if (other.lastName != null)

return false;

} else if (!lastName.equals(other.lastName))

return false;

if (phoneNumber == null) {

if (other.phoneNumber != null)

return false;

} else if (!phoneNumber.equals(other.phoneNumber))

return false;

if (Double.doubleToLongBits(salary) != Double.doubleToLongBits(other.salary))

return false;

if (title == null) {

if (other.title != null)

return false;

} else if (!title.equals(other.title))

return false;

return true;

}

@Override

public String toString() {

return "Employee [firstName=" + firstName + ", lastName=" + lastName + ", phoneNumber=" + phoneNumber

+ ", address=" + address + ", title=" + title + ", id=" + id + ", salary=" + salary + "]";

}

}

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