要为某个公司编写雇员( n个雇员)支付月工资，这个公司有各种类型的雇员（Employee），不同类型的雇员按不同的方式支付工资利用Java写

可以定义一个抽象类Employee作为所有雇员类型的基类，然后派生出具体的子类，如HourlyEmployee、SalariedEmployee、CommissionEmployee等。

抽象类Employee中定义了基本的属性和方法，如姓名、工号、基本工资、计算工资的方法等，具体的子类可以根据自己的特点对这些属性和方法进行扩展和重写。

下面是一个简单的实现示例：

abstract class Employee {
    private String name;  // 姓名
    private String id;    // 工号
    private double baseSalary;  // 基本工资

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

    public String getName() {
        return name;
    }

    public String getId() {
        return id;
    }

    public double getBaseSalary() {
        return baseSalary;
    }

    // 计算工资的抽象方法
    public abstract double getSalary();

    @Override
    public String toString() {
        return "Employee{" +
                "name='" + name + '\'' +
                ", id='" + id + '\'' +
                ", baseSalary=" + baseSalary +
                '}';
    }
}

class HourlyEmployee extends Employee {
    private int hours;  // 工作小时数
    private double hourlyRate;  // 每小时工资

    public HourlyEmployee(String name, String id, double baseSalary, int hours, double hourlyRate) {
        super(name, id, baseSalary);
        this.hours = hours;
        this.hourlyRate = hourlyRate;
    }

    public int getHours() {
        return hours;
    }

    public double getHourlyRate() {
        return hourlyRate;
    }

    @Override
    public double getSalary() {
        return getBaseSalary() + hours * hourlyRate;
    }

    @Override
    public String toString() {
        return "HourlyEmployee{" +
                "name='" + getName() + '\'' +
                ", id='" + getId() + '\'' +
                ", baseSalary=" + getBaseSalary() +
                ", hours=" + hours +
                ", hourlyRate=" + hourlyRate +
                ", salary=" + getSalary() +
                '}';
    }
}

class SalariedEmployee extends Employee {
    public SalariedEmployee(String name, String id, double baseSalary) {
        super(name, id, baseSalary);
    }

    @Override
    public double getSalary() {
        return getBaseSalary();
    }

    @Override
    public String toString() {
        return "SalariedEmployee{" +
                "name='" + getName() + '\'' +
                ", id='" + getId() + '\'' +
                ", baseSalary=" + getBaseSalary() +
                ", salary=" + getSalary() +
                '}';
    }
}

class CommissionEmployee extends Employee {
    private double sales;  // 销售额
    private double commissionRate;  // 提成比例

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

    public double getSales() {
        return sales;
    }

    public double getCommissionRate() {
        return commissionRate;
    }

    @Override
    public double getSalary() {
        return getBaseSalary() + sales * commissionRate;
    }

    @Override
    public String toString() {
        return "CommissionEmployee{" +
                "name='" + getName() + '\'' +
                ", id='" + getId() + '\'' +
                ", baseSalary=" + getBaseSalary() +
                ", sales=" + sales +
                ", commissionRate=" + commissionRate +
                ", salary=" + getSalary() +
                '}';
    }
}

public class PayrollSystem {
    public static void main(String[] args) {
        Employee[] employees = new Employee[3];
        employees[0] = new HourlyEmployee("张三", "1001", 2000, 160, 12.5);
        employees[1] = new SalariedEmployee("李四", "1002", 5000);
        employees[2] = new CommissionEmployee("王五", "1003", 3000, 20000, 0.05);

        for (Employee employee : employees) {
            System.out.println(employee);
        }
    }
}

输出结果：

HourlyEmployee{name='张三', id='1001', baseSalary=2000.0, hours=160, hourlyRate=12.5, salary=4000.0}
SalariedEmployee{name='李四', id='1002', baseSalary=5000.0, salary=5000.0}
CommissionEmployee{name='王五', id='1003', baseSalary=3000.0, sales=20000.0, commissionRate=0.05, salary=4000.0}

在PayrollSystem类中创建了一个Employee类型的数组，包含了三种不同类型的雇员，然后依次输出每个雇员的信息，包括姓名、工号、基本工资、实际工资等。每个具体的雇员类型都实现了抽象类Employee中定义的计算工资的抽象方法，根据自己的特点进行计算。