某学校有3类员工：教师、行政人员、教师兼行政人员，共有的信息包括编号、姓名、性别和职工类别。工资计算方法如下。 教师：基本工资+课时数×课时补贴。 行政人员：基本工资+行政补贴。 教师兼行政人员：基本工资+课时数×课时补贴+行政补贴。 分析以上信息，定义人员抽象类，派生不同类型的员工，并完成工资的计算。

人员抽象类的定义：

abstract class Employee {
    protected int id; // 编号
    protected String name; // 姓名
    protected char gender; // 性别

    public Employee(int id, String name, char gender) {
        this.id = id;
        this.name = name;
        this.gender = gender;
    }

    public abstract double getSalary(); // 获取工资的抽象方法

    public String toString() {
        return "编号：" + id + "，姓名：" + name + "，性别：" + gender;
    }
}

教师类的定义：

class Teacher extends Employee {
    private int courseHours; // 课时数
    private double courseAllowance; // 课时补贴

    public Teacher(int id, String name, char gender, int courseHours, double courseAllowance) {
        super(id, name, gender);
        this.courseHours = courseHours;
        this.courseAllowance = courseAllowance;
    }

    public double getSalary() {
        return courseHours * courseAllowance;
    }

    public String toString() {
        return super.toString() + "，职工类别：教师";
    }
}

行政人员类的定义：

class Administrator extends Employee {
    private double adminAllowance; // 行政补贴

    public Administrator(int id, String name, char gender, double adminAllowance) {
        super(id, name, gender);
        this.adminAllowance = adminAllowance;
    }

    public double getSalary() {
        return adminAllowance;
    }

    public String toString() {
        return super.toString() + "，职工类别：行政人员";
    }
}

教师兼行政人员类的定义：

class TeacherAdministrator extends Employee {
    private int courseHours; // 课时数
    private double courseAllowance; // 课时补贴
    private double adminAllowance; // 行政补贴

    public TeacherAdministrator(int id, String name, char gender, int courseHours, double courseAllowance, double adminAllowance) {
        super(id, name, gender);
        this.courseHours = courseHours;
        this.courseAllowance = courseAllowance;
        this.adminAllowance = adminAllowance;
    }

    public double getSalary() {
        return courseHours * courseAllowance + adminAllowance;
    }

    public String toString() {
        return super.toString() + "，职工类别：教师兼行政人员";
    }
}

测试代码：

public static void main(String[] args) {
    Employee[] employees = new Employee[3];
    employees[0] = new Teacher(1001, "张三", '男', 20, 50);
    employees[1] = new Administrator(1002, "李四", '女', 1000);
    employees[2] = new TeacherAdministrator(1003, "王五", '男', 30, 60, 1200);

    for (Employee employee : employees) {
        System.out.println(employee.toString() + "，工资：" + employee.getSalary());
    }
}

输出结果：

编号：1001，姓名：张三，性别：男，职工类别：教师，工资：1000.0
编号：1002，姓名：李四，性别：女，职工类别：行政人员，工资：1000.0
编号：1003，姓名：王五，性别：男，职工类别：教师兼行政人员，工资：3000.0