多态参数练习

package com.hspedu.poly_.polyaraneter_;

public class Test {
    public static void main(String[] args) {
        Worker laLa = new Worker("laLa", 1000);
        Manager koko = new Manager("koko",1000,7000);
        Test test = new Test();
        test.showEmployee(laLa);
        test.showEmployee(koko);

        test.testWork(laLa);
        test.testWork(koko);
    }
    public void showEmployee(Employee e) {
        System.out.println(e.getAnnual()); //动态绑定机制
    }

    public void testWork(Employee e) {
        if (e instanceof Worker) {
            ((Worker) e).work(); //向下转型
        } else if (e instanceof Manager) {
            ((Manager) e).manger(); //向下转型
        } else {
            System.out.println("错了，宝儿");
        }
    }
}

package com.hspedu.poly_.polyaraneter_;

//员工类
public class Employee {
    //共有的属性
    private String name;
    private double  salary;
    //构造器
    public Employee(String name, double salary) {
        this.name = name;
        this.salary = salary;
    }

    //get set 方法
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getSalary() {
        return salary;
    }

    public void setSalary(double salary) {
        this.salary = salary;
    }

    public double getAnnual() {  //计算年薪水的方法
        return 12 * salary;
    }

}

package com.hspedu.poly_.polyaraneter_;
//普通员工类
public class Worker extends Employee{
    //构造器
    public Worker(String name, double salary) {
        super(name, salary);
    }
    //普通员工类独有的方法 work
    public void work() {
        System.out.println(" 普通员工 " + getName() + " 正在摸鱼 ");
    }

    @Override
    //重写获取年薪的方法
    //因为普通员工没有其他收入，则直接调用父类方法 不用添加别的东西
    public double getAnnual() {
        return super.getAnnual();
    }
}

package com.hspedu.poly_.polyaraneter_;
//经理类
public class Manager extends Employee{
    //经理类独有的属性
    private double bonus;
    //构造器
    public Manager(String name, double salary, double bonus) {
        super(name, salary);
        this.bonus = bonus;
    }
    //get set 方法
    public double getBonus() {
        return bonus;
    }

    public void setBonus(double bonus) {
        this.bonus = bonus;
    }

    public void manger() {
        System.out.println(" 经理 " + getName() + " 正在划水 ");
    }

    //重写获取年薪的方法
    //因为经理多了一个奖金的收入 故在原先的基础上  + bonus
    @Override
    public double getAnnual() {
        return super.getAnnual() + bonus;
    }
}