用java实现五个类，Person，Customer，Employee，Manager，Salesperson.用子类父类联系，并具体实例化

Person类：

public class Person {
    private String name;
    private int age;
    private String address;

    public Person(String name, int age, String address) {
        this.name = name;
        this.age = age;
        this.address = address;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", address='" + address + '\'' +
                '}';
    }
}

Customer类：

public class Customer extends Person {
    private String customerID;

    public Customer(String name, int age, String address, String customerID) {
        super(name, age, address);
        this.customerID = customerID;
    }

    public String getCustomerID() {
        return customerID;
    }

    public void setCustomerID(String customerID) {
        this.customerID = customerID;
    }

    @Override
    public String toString() {
        return "Customer{" +
                "name='" + getName() + '\'' +
                ", age=" + getAge() +
                ", address='" + getAddress() + '\'' +
                ", customerID='" + customerID + '\'' +
                '}';
    }
}

Employee类：

public class Employee extends Person {
    private String employeeID;
    private double salary;

    public Employee(String name, int age, String address, String employeeID, double salary) {
        super(name, age, address);
        this.employeeID = employeeID;
        this.salary = salary;
    }

    public String getEmployeeID() {
        return employeeID;
    }

    public void setEmployeeID(String employeeID) {
        this.employeeID = employeeID;
    }

    public double getSalary() {
        return salary;
    }

    public void setSalary(double salary) {
        this.salary = salary;
    }

    @Override
    public String toString() {
        return "Employee{" +
                "name='" + getName() + '\'' +
                ", age=" + getAge() +
                ", address='" + getAddress() + '\'' +
                ", employeeID='" + employeeID + '\'' +
                ", salary=" + salary +
                '}';
    }
}

Manager类：

public class Manager extends Employee {
    private String department;

    public Manager(String name, int age, String address, String employeeID, double salary, String department) {
        super(name, age, address, employeeID, salary);
        this.department = department;
    }

    public String getDepartment() {
        return department;
    }

    public void setDepartment(String department) {
        this.department = department;
    }

    @Override
    public String toString() {
        return "Manager{" +
                "name='" + getName() + '\'' +
                ", age=" + getAge() +
                ", address='" + getAddress() + '\'' +
                ", employeeID='" + getEmployeeID() + '\'' +
                ", salary=" + getSalary() +
                ", department='" + department + '\'' +
                '}';
    }
}

Salesperson类：

public class Salesperson extends Employee {
    private double commissionRate;

    public Salesperson(String name, int age, String address, String employeeID, double salary, double commissionRate) {
        super(name, age, address, employeeID, salary);
        this.commissionRate = commissionRate;
    }

    public double getCommissionRate() {
        return commissionRate;
    }

    public void setCommissionRate(double commissionRate) {
        this.commissionRate = commissionRate;
    }

    @Override
    public String toString() {
        return "Salesperson{" +
                "name='" + getName() + '\'' +
                ", age=" + getAge() +
                ", address='" + getAddress() + '\'' +
                ", employeeID='" + getEmployeeID() + '\'' +
                ", salary=" + getSalary() +
                ", commissionRate=" + commissionRate +
                '}';
    }
}

具体实例化：

public class Main {
    public static void main(String[] args) {
        Customer customer = new Customer("张三", 18, "北京市", "0001");
        System.out.println(customer);

        Employee employee = new Employee("李四", 25, "上海市", "0002", 5000);
        System.out.println(employee);

        Manager manager = new Manager("王五", 30, "广州市", "0003", 8000, "销售部");
        System.out.println(manager);

        Salesperson salesperson = new Salesperson("赵六", 28, "深圳市", "0004", 6000, 0.1);
        System.out.println(salesperson);
    }
}

输出：

Customer{name='张三', age=18, address='北京市', customerID='0001'}
Employee{name='李四', age=25, address='上海市', employeeID='0002', salary=5000.0}
Manager{name='王五', age=30, address='广州市', employeeID='0003', salary=8000.0, department='销售部'}
Salesperson{name='赵六', age=28, address='深圳市', employeeID='0004', salary=6000.0, commissionRate=0.1}