java继承学习-员工增加工资_(二)编写java程序,定义employee 类以及 hr类,实现hr为employee加薪的功能。

首先员工和经理一样，都是员工，但是员工自有自己的基础工资，经理可能还会有一些额外的奖金，所以用继承来实现一个简单的代码。

员工类：

package com.example.extend;

import java.time.LocalDate;

public class Employee {

    private String name;

    private double salary;

    private LocalDate hireDay;

    public Employee(String name, double salary, int year, int month, int day) {
        this.name = name;
        this.salary = salary;
        hireDay = LocalDate.of(year, month, day);
    }

    public String getName() {
        return name;
    }

    public double getSalary() {
        return salary;
    }

    public LocalDate getHireDay() {
        return hireDay;
    }

    /**
     * 员工增加工资
     * @param byPercent
     */
    public void raiseSalary(double byPercent) {
        double raise = salary*byPercent/100;
        salary += raise;
    }

}

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经理类：

package com.example.extend;

public class Manager extends Employee {

    private double bonus;

    public Manager(String name, double salary, int year, int month, int day) {
        super(name, salary, year, month, day);
        bonus = 0;
    }

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

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

}

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测试类：

   package com.example.extend;

public class ManagerTest {

    public static void main(String[] args) {
        // 构建一个管理员对象
        Manager boss = new Manager("Renyuhua", 80000, 2018, 12, 30);
        boss.setBonus(5000);

        Employee[] staff = new Employee[2];

        staff[0] = boss;
        staff[1] = new Employee("zhangzhouzhou", 20000, 2000, 6, 14);

        for (Employee employee : staff) {
            employee.raiseSalary(5);
            System.out.println("name = " + employee.getName() + ",salary = " + employee.getSalary());
        }
    }
}

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最后的输出：