program challenge
From: Clara (claradona_at_hotmail.com)
Date: 03/22/05
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Date: 22 Mar 2005 03:20:15 -0800
was doing a program for fun to brush up my java skills (under my dad's
advice) but i got stuck at the arrays for classes. (object oriented)
public abstract class Employee {
public String name;
public int idno;
/**Construct an employee object with specified properties*/
public Employee(String name){
this.name = name;
}
/**default id*/
public Employee(){
idno = 0;
}
/** construct id*/
public Employee(int idno){
this.idno = idno;
}
/** Return name */
public String getName(){
return name;
}
/** Set a new name */
public void setName(String name){
this.name = name;
}
/** Return idno */
public int getIdno(){
return idno;
}
/** Set a new idno */
public void setIdno(int idno){
this.idno = idno;
}
/** Abstract method findWeeklySalary */
public abstract double findWeeklySalary();
}
// Salaried.java: the salaried class that extends Employee
public class Salaried extends Employee
{
public double annualsalary;
/** Default constructor*/
public Salaried() {
this(1.0);
}
//Construct annual salary
public Salaried (double annualsalary)
{
this.annualsalary = annualsalary;
}
/** Construct annual salary with specified attributes */
public Salaried (int idno, double annualsalary){
super(idno);
/**annualsalary = 1.0;*/
}
/** Return annual salary */
public double getAnnualsalary(){
return annualsalary;
}
/** Set a new annual salary */
public void setAnnualsalary(double annualsalary){
this.annualsalary = annualsalary;
}
/** Implement the findWeeklySalary method defined in Employee*/
public double findWeeklySalary(){
return annualsalary/52;
}
}
// Hourly.java: the Hourly class that extends Employee
public class Hourly extends Employee {
private double hours;
private double rates;
/** Default constructor*/
public Hourly() {
this(1.0, 1.0);
}
/** Construct a Hourly example with hours and rates */
public Hourly(double hours, double rates){
this.hours = hours;
this.rates = rates;
}
/** Construct Hourly example with specified attributes */
public Hourly ( int idno, double hours, double rates) {
super(idno);
}
/** Return hours and rates */
public double getHours(){
return hours;
}
public double getRates() {
return rates;
}
/** Set a new hours and rates */
public void setHours(double hours){
this.hours = hours;
}
public void setRates(double rates){
this.rates = rates;
}
/** Implement the findWeeklySalary method defined in Employee */
public double findWeeklySalary(){
if (hours <= 40)
return hours * rates;
else
return (rates * 40) + (rates*1.5*(hours-40));
}
}
// Manager.java: The new manager class that extends the salaried class
public class Manager extends Salaried {
public String division;
/** Default constructor */
public Manager(){
super();
}
/** Construct a new Manager with specified attributes */
public Manager (double annualsalary, String division){
super(annualsalary);
this.division = division;
}
/** Return division */
public String getDivision(){
return division;
}
/** Set a new division */
public void setDivision(String division){
this.division = division;
}
}
// Consultant.java: The new consultant class that extends the salaried
class
public class Consultant extends Salaried {
public int numofproject;
/** Default constructor */
public Consultant() {
super();
}
/** Construct a new Consultant with specified attributes */
public Consultant (double annualsalary, int numofproject){
super(annualsalary);
this.numofproject = numofproject;
}
/** Return number of project */
public int getNumofproject(){
return numofproject;
}
/** Set a new division */
public void setNumofproject(int numofproject){
this.numofproject = numofproject;
}
}
// Programmer.java: the programmer class that extends from Hourly
public class Programmer extends Hourly {
public String projectname;
/** Default constructor */
public Programmer() {
super();
}
/** Construct a new Programmer with specified attributes */
public Programmer (double hours, double rates, String projectname){
super(hours, rates);
this.projectname = projectname;
}
/** Return project name */
public String getProjectname(){
return projectname;
}
/** Set a new project name */
public void setProjectname(String projectname){
this.projectname = projectname;
}
}
public class TestEmployee{
/** Main Method */
public static void main(String[] args){
//Declare and initialize three employee types
Right now i'm wonderin how to insert arrays and test the program i.e
error messages, loops, etc
I know I need to use loops to calculate totals of the 3 categories of
employees too but i'm like so clueless as to where to place these
statements.
Thanks for any replies.
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