package yynn.boozer.qin;

import java.util.*;

public class ManagerTest {

public static void main(String[] args) {
Manager boss = new Manager("Tao", 80000, 2010, 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", 40000, 1990, 3, 15);
for (int i = 0; i < staff.length; i++) {
Employee e = staff[i];
System.out.println("name=" + e.getName() + ",salary="
+ e.getSalary());
}

}

}

class Employee {
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;
}

private String name;
private double salary;
private Date hireDay;
}

class Manager extends Employee {
public Manager(String n, double s, int year, int month, int day) {
super(n, s, year, month, day);
bonus = 0;
}

public double getSalary() {
double baseSalary = super.getSalary();
return baseSalary + bonus;

}

public void setBonus(double b) {
bonus = b;
}

private double bonus;
}

1。就是第一行的那个包在eclipse中什么用的！
2。就是“，salary” ，号怎么卡当中呢！
3。最后那private是封装？不用可以吗？