java面向对象设计工资管理系统

1. 定义员工类
- 成员变量：员工编号、姓名、基本工资
- 成员方法：计算薪水（根据基本工资和工龄等因素计算总薪水）、获取员工信息

2. 定义经理类（继承自员工类）
- 成员变量：绩效工资、奖金
- 成员方法：计算薪水（包括基本工资、绩效工资和奖金）、获取经理信息

3. 定义销售员类（继承自员工类）
- 成员变量：销售额、提成比例
- 成员方法：计算薪水（包括基本工资和销售提成）、获取销售员信息

4. 定义工资管理系统类
- 成员变量：员工列表
- 成员方法：添加员工、删除员工、修改员工信息、查询员工信息、计算所有员工总薪水

5. 编写测试代码，测试工资管理系统的各项功能

示例代码：

员工类：

public class Employee {
    private String id;
    private String name;
    private double baseSalary;

    public Employee(String id, String name, double baseSalary) {
        this.id = id;
        this.name = name;
        this.baseSalary = baseSalary;
    }

    public String getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public double getBaseSalary() {
        return baseSalary;
    }

    public double calculateSalary() {
        // 根据基本工资和工龄等因素计算总薪水
        return baseSalary;
    }

    public String getInfo() {
        // 获取员工信息
        return "员工编号：" + id + "，姓名：" + name + "，基本工资：" + baseSalary;
    }
}

经理类：

public class Manager extends Employee {
    private double performanceSalary;
    private double bonus;

    public Manager(String id, String name, double baseSalary, double performanceSalary, double bonus) {
        super(id, name, baseSalary);
        this.performanceSalary = performanceSalary;
        this.bonus = bonus;
    }

    public double getPerformanceSalary() {
        return performanceSalary;
    }

    public double getBonus() {
        return bonus;
    }

    @Override
    public double calculateSalary() {
        // 包括基本工资、绩效工资和奖金
        return super.calculateSalary() + performanceSalary + bonus;
    }

    @Override
    public String getInfo() {
        // 获取经理信息
        return "员工编号：" + getId() + "，姓名：" + getName() + "，基本工资：" + getBaseSalary() + "，绩效工资：" + performanceSalary + "，奖金：" + bonus;
    }
}

销售员类：

public class Salesman extends Employee {
    private double salesAmount;
    private double commissionRate;

    public Salesman(String id, String name, double baseSalary, double salesAmount, double commissionRate) {
        super(id, name, baseSalary);
        this.salesAmount = salesAmount;
        this.commissionRate = commissionRate;
    }

    public double getSalesAmount() {
        return salesAmount;
    }

    public double getCommissionRate() {
        return commissionRate;
    }

    @Override
    public double calculateSalary() {
        // 包括基本工资和销售提成
        return super.calculateSalary() + salesAmount * commissionRate;
    }

    @Override
    public String getInfo() {
        // 获取销售员信息
        return "员工编号：" + getId() + "，姓名：" + getName() + "，基本工资：" + getBaseSalary() + "，销售额：" + salesAmount + "，提成比例：" + commissionRate;
    }
}

工资管理系统类：

import java.util.ArrayList;
import java.util.List;

public class SalaryManagementSystem {
    private List<Employee> employeeList;

    public SalaryManagementSystem() {
        employeeList = new ArrayList<>();
    }

    public void addEmployee(Employee employee) {
        employeeList.add(employee);
    }

    public void deleteEmployee(String id) {
        for (Employee employee : employeeList) {
            if (employee.getId().equals(id)) {
                employeeList.remove(employee);
                break;
            }
        }
    }

    public void modifyEmployee(String id, String name, double baseSalary) {
        for (Employee employee : employeeList) {
            if (employee.getId().equals(id)) {
                employeeList.remove(employee);
                employeeList.add(new Employee(id, name, baseSalary));
                break;
            }
        }
    }

    public String queryEmployee(String id) {
        for (Employee employee : employeeList) {
            if (employee.getId().equals(id)) {
                return employee.getInfo();
            }
        }
        return "未找到员工";
    }

    public double calculateTotalSalary() {
        double totalSalary = 0;
        for (Employee employee : employeeList) {
            totalSalary += employee.calculateSalary();
        }
        return totalSalary;
    }
}

测试代码：

public class TestSalaryManagementSystem {
    public static void main(String[] args) {
        SalaryManagementSystem salaryManagementSystem = new SalaryManagementSystem();

        // 添加员工
        salaryManagementSystem.addEmployee(new Employee("001", "张三", 5000));
        salaryManagementSystem.addEmployee(new Manager("002", "李四", 8000, 2000, 3000));
        salaryManagementSystem.addEmployee(new Salesman("003", "王五", 4000, 10000, 0.1));

        // 查询员工信息
        System.out.println(salaryManagementSystem.queryEmployee("001"));
        System.out.println(salaryManagementSystem.queryEmployee("002"));
        System.out.println(salaryManagementSystem.queryEmployee("003"));
        System.out.println(salaryManagementSystem.queryEmployee("004"));

        // 修改员工信息
        salaryManagementSystem.modifyEmployee("001", "张三丰", 6000);
        System.out.println(salaryManagementSystem.queryEmployee("001"));

        // 删除员工
        salaryManagementSystem.deleteEmployee("002");
        System.out.println(salaryManagementSystem.queryEmployee("002"));

        // 计算所有员工总薪水
        System.out.println("总薪水：" + salaryManagementSystem.calculateTotalSalary());
    }
}