Java面向第三天

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Java面向

接上一天，继续升入面向
作业：还是在上一家公司，该公司将职员分为三类：部门经理、技术员和销售员。在发工资的时候，部门经理拿固定月薪8000元，技术人员按每小时100元领取月薪，销售人员按照500元底薪加当月销售额的4%进行提成，设计并实现一个工资结算系统。
创建父类（员工）

public abstract class Employee {    private String name;    public String getName() {        return name;    }    public Employee(String name) {        this.name = name;    }    public abstract double getSalary();      @Override    public String toString(){        return name;    }

子类程序员

public class Programmer extends Employee {    private double Hour;     public Programmer(String name) {        super(name);    }    @Override    public double getSalary() {        return 100*Hour;    }    public double getHour() {        return Hour;    }    public void setHour(double d) {        this.Hour = d;    }    public String toString(){        return "程序员"+super.toString();}}

子类经理

public class Manager extends Employee {      public Manager(String name) {          super(name);      }      public double getSalary() {          return 8000.0;      }      public String toString() {          return "[部门经理]" + super.toString();      }  }

子类销售员

public class Salesman extends Employee {    private double sales;    public double getSales() {        return sales;    }    public void setSales(double sales) {        this.sales = sales;    }    public Salesman(String name) {        super(name);    }    @Override    public double getSalary() {        return 1200 + sales * 0.05;    }}

实现类

import java.util.Scanner;public class SalaryCalculate {    public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        String[] names = {"李琪","黄南桥","赖彬","何坤","谷振东"};        Employee[] minzi = new Employee[names.length] ;        for (int i = 0; i < minzi.length; i++) {            int empType = (int) (Math.random() * 3);            switch (empType) {            case 0:                minzi[i] = new Manager(names[i]);                break;            case 1:                minzi[i] = new Programmer(names[i]);                break;            case 2:                minzi[i] = new Salesman(names[i]);                break;            }        }        for(Employee e : minzi) {              if(e instanceof Programmer) {                  System.out.print("请输入" + e.getName() + "的本月工作时间: ");                  ((Programmer) e).setHour(sc.nextInt());              }              else if(e instanceof Salesman) {                  System.out.print("请输入" + e.getName() + "的本月销售额: ");                  ((Salesman) e).setSales(sc.nextDouble());              }              System.out.println(e.getName() + "本月工资为: " + e.getSalary());          }            sc.close();    }}

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