update,

_resources/it114105/itp3914/Lab12/Ex5/Employee5.java

@@ -0,0 +1,21 @@
+public class Employee5 {
+    String name;
+    int employeeID;
+    protected int salary;
+ 
+    public Employee5(String name, int employeeID) {
+        this.name = name;
+        this.employeeID = employeeID;
+    }
+ 
+    public Employee5(String name, int employeeID, int salary) {
+        this.name = name;
+        this.employeeID = employeeID;
+        this.salary = salary;
+    }
+ 
+    public String toString() {
+        return "Name: " + name + ", Employee ID: "
+                         + employeeID + ", Salary: " + salary;
+    }
+}

_resources/it114105/itp3914/Lab12/Ex5/Ex5.java

@@ -0,0 +1,12 @@
+public class Ex5 {
+    public static void main(String[] args) {
+        Employee5[] emps = new Employee5[4];
+        emps[0] = new Employee5("Sam", 111, 30000);
+        emps[1] = new PartTimer("Ray", 222, 30, 300);
+        emps[2] = new NewPartTimer("June", 333, 40, 100, 0.05);
+        emps[3] = new NewPartTimer("May", 444, 100, 100, 0.05);
+        for (Employee5 employee : emps) 
+            System.out.println(employee);
+        
+    }
+}

_resources/it114105/itp3914/Lab12/Ex5/NewPartTimer.java

@@ -0,0 +1,29 @@
+public class NewPartTimer extends PartTimer{
+    protected int mpf;
+    protected double mpfRate;
+
+    NewPartTimer(String name, int employeeID, int workingHour, int hourlyRate, double mpfRate){
+        super(name, employeeID, workingHour, hourlyRate);
+        this.mpfRate = mpfRate;
+
+        calculateMpf();
+    }
+
+    protected void calculateMpf(){
+        if(salary >= 6500){
+            mpf = (int)(salary * mpfRate);
+            if(mpf > 1250)
+                mpf = 1250;
+            salary = salary - mpf;
+        }else
+            mpf = 0;
+    }
+
+        @Override
+        public String toString() {
+            // TODO Auto-generated method stub
+    
+            return super.toString() + ", MPF Rate: " + mpfRate + "%, MPF: " + mpf;
+        }
+    
+}

_resources/it114105/itp3914/Lab12/Ex5/PartTimer.java

@@ -0,0 +1,21 @@
+public class PartTimer extends Employee5 {
+    protected int workingHour;
+    protected int hourlyRate;
+
+    PartTimer(String name, int employeeID, int workingHour, int hourlyRate){
+        super(name, employeeID);
+        this.workingHour = (workingHour > 220) ? 0: workingHour;
+        this.hourlyRate = hourlyRate;
+        calculateSalary();
+    }
+
+    protected void calculateSalary(){
+        salary = workingHour * hourlyRate;
+    }
+    
+    @Override
+    public String toString() {
+        // TODO Auto-generated method stub
+        return super.toString() + ", Salary: " + salary + ", working Hour: " + workingHour + ", Hourly rate: " + hourlyRate;
+    }
+}