1. CS442: Advanced programming using java
Computer Science Department
Lab 8: Inheritance Hierarchy

2. Lab Contents Implementing is-a relationship.
Define constructors in sub and super classes.
Overload and override methods.

3. Given the following inheritance hierarchy of the Campus Community case study:

4. Question??..
Implement the Administrator class based on the following properties:
Job description :String
Administrative Allowance as a percentage of the basic salary (should be between 0.0 and 1.0)
Your class should also define a method Compute salary.

5. Variables and constructors..
Defined variables and constructors:
public class Administrator extends Faculty {
private String JobDescription;
private double Allowance; //between 0.0 and 1.0
public Administrator(String FName, String LName, String ssn, Date dob, String title, double salary, Date hireDate, String degree, String specality, String jobDescription, double allowance1) {
super(FName, LName, ssn, dob, title, salary, hireDate, degree, specality);
this.JobDescription=jobDescription;
setAllowance(allownce1); }

6. Set methods … public void setJobDescription(String jobDescription) {
this.JobDescription=jobDescription; }
public void setAllowance(double allowance)
If (allownce>0 && allownce<=1)
this.Allowance=allowance;
Else
Allownce=0.0;

7. Get methods … public String getJobDescription() {
return JobDescription; }
public double getAllowance()
return Allowance;

8. Compute Salary method.. public double computeSalary() {
return getSalary()+(getSalary()*Allowance); }

9. Override toString().. @Override public String toString() {
return "Administrator{" + super.toString() + "\nJobDescription=" + JobDescription + ", Allowance=" + Allowance + '}'; }

10. Main class .. public class CommunityMemberTest {
public static void main(String[] args) {
Student student = new Student("Mona", "Ahmed","222222",new Date(2,4,1998),"CS222222","Compuers",2);
System.out.println(student);
  Employee emp=new Employee("Nadia", "Faisal", " ", new Date(14,6,1980),"Lecturer", 8000, new Date(12,5,2012));
System.out.println(emp);

11. Cont… System.out.println(staff);
Staff staff=new Staff("Malak", "Mohammed", " ", new Date(2,6,1991),"Registrar", 6000, new Date(12,10,2013), 'f');
System.out.println(staff);
Administrator admin=new Administrator("Lina", "Fahd", " ", new Date(2,6,1976),"Assistant Professor", 20000, new Date(9,10,2009), "PhD", "Computer Sciences", "Head of Computer Sciences Dept", 0.2);
System.out.println(admin);
System.out.println(admin.getFullName()+" Full Salary: "+admin.computeSalary()); }
dr. Amal Khalifa, 2014