继承

package fifth;

public class ManagerTest {

public static void main(String[] args) {
// TODO Auto-generated method stub
Manager boss = new Manager("Carl Cracker", 80000,1987,12,15);
boss.setBonus(5000);

Employee[] staff = new Employee[3];

staff[0]=boss;
staff[1]=new Employee("Harry Hacker",50000,1989,10,1);
staff[2]=new Employee("Tommy Tester",4000,1990,3,15);

for(Employee e:staff)
System.out.println("name="+e.getName()+",salary="+e.getSalary());

}

}

 

 

 

 

 

 

 

 

 

package fifth;

public class Manager extends Employee{

private double bonus;

public Manager(String n, double s, int year, int month, int day) {
super(n, s, year, month, day);
// TODO Auto-generated constructor stub
bonus= 0;
}
public double getSalary()
{
double baseSalary=super.getSalary();
return baseSalary+bonus;
}
public void setBonus(double b)
{
bonus= b;
}


}

 

 

 

 

 

 

 

 

 

 

 

 

 

package fifth;

import java.util.Date;
import java.util.GregorianCalendar;

public class Employee {
private String name;
private double salary;
private Date hireDay;

public Employee(String n, double s, int year, int month, int day)
{
name = n;
salary=s;
GregorianCalendar calendar = new GregorianCalendar(year,month-1,day);
hireDay= calendar.getTime();
}

public String getName()
{
return name;
}
public double getSalary()
{
return salary;
}
public Date getHireDay()
{
return hireDay;
}

public void raiseSalary(double byPercent)
{
double raise = salary*byPercent/100;
salary+=raise;
}

}