1. (程序题)设计具有工作能力接口Workable，声明抽象方法updateName()，通过传入的字符串修改姓名；声明抽象方法calculateSalary()，返回计算的薪资
设计员工实体类Employee，公司下所有员工均包含，姓名，基本工资属性；并实现Workable接口，所有公司职员均具有相同的修改姓名行为
设计经理实体类Manager，经理也是一类员工，拥有经理级别；经理薪资 = 基本工资 * 级别 * 80%
设计销售实体类Seller，销售也是一类员工，拥有销售额，销售提成；销售薪资 = 基本工资 + 销售额 * 销售提成
所有员工一定是2种类型之一，即系统种不存在员工，只存在经理和销售
设计薪资业务逻辑操作类SalaryService，提供getTotalSalaries()方法，统计返回，传入的所有工作员工的薪资总额。
创建Test类，在主函数，输入一个经理的名字，一个经理的基本工资，一个经理的级别；再输入一个销售人员的名字，销售人员的基本工资，销售额，及销售提成。通过调用业务逻辑类计算的薪资总额，并输出，薪资保留两位小数。
输入输出例子：
输入：
zansan 5000 2
lisi 3000 20000 0.15
输出：
薪资总额: 14000.00
提交提醒：
（1）只有Test类是public的，且一定要放在最前面。
（2）所有类提交的时候不能有创建包的语句。
package com.nefu.lessons;
// Test类
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;public class a08_experiment03_t1 {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);// 输入经理信息String[] managerInfo = scanner.nextLine().split(" ");String managerName = managerInfo[0];double managerBaseSalary = Double.parseDouble(managerInfo[1]);int managerLevel = Integer.parseInt(managerInfo[2]);// 输入销售人员信息String[] sellerInfo = scanner.nextLine().split(" ");String sellerName = sellerInfo[0];double sellerBaseSalary = Double.parseDouble(sellerInfo[1]);double salesAmount = Double.parseDouble(sellerInfo[2]);double salesCommission = Double.parseDouble(sellerInfo[3]);// 创建经理对象和销售人员对象Manager manager = new Manager(managerName, managerBaseSalary, managerLevel);Seller seller = new Seller(sellerName, sellerBaseSalary, salesAmount, salesCommission);// 创建员工列表List<Employee> employees = new ArrayList<>();employees.add(manager);employees.add(seller);// 计算薪资总额SalaryService salaryService = new SalaryService();double totalSalaries = salaryService.getTotalSalaries(employees);// 输出薪资总额System.out.printf("薪资总额: %.2f\n", totalSalaries);scanner.close();}
}
// 接口Workable
interface Workable {void updateName(String newName);double calculateSalary();
}// 员工实体类Employee
abstract class Employee implements Workable {protected String name;protected double baseSalary;public Employee(String name, double baseSalary) {this.name = name;this.baseSalary = baseSalary;}@Overridepublic void updateName(String newName) {this.name = newName;}
}// 经理实体类Manager
class Manager extends Employee {private int level;public Manager(String name, double baseSalary, int level) {super(name, baseSalary);this.level = level;}@Overridepublic double calculateSalary() {return baseSalary * level * 80 / 100.0;}
}// 销售实体类Seller
class Seller extends Employee {private double salesAmount;private double salesCommission;public Seller(String name, double baseSalary, double salesAmount, double salesCommission) {super(name, baseSalary);this.salesAmount = salesAmount;this.salesCommission = salesCommission;}@Overridepublic double calculateSalary() {return baseSalary + salesAmount * salesCommission;}
}// 薪资业务逻辑操作类SalaryService
class SalaryService {public double getTotalSalaries(List<Employee> employees) {double totalSalaries = 0;for (Employee employee : employees) {totalSalaries += employee.calculateSalary();}return totalSalaries;}
}
)
