编写一个Person抽象类，要求含有姓名（name）年龄（age）两个私有属性以及吃饭（eat） 和睡觉（sleep）两个抽象方法，并写出带参构造方法 创建学生（student）和工人（worker） 两个类，继承Person类，学生类多出了私有属性学号和学习方法（输出我爱学习），工人类多出了私有属性工号和工作方法（输出我爱工作）， 在Test类中创建学生和工人类的实例对象，使用构造方法赋值，并输出所有属性和方法 创建LinkedList集合存5个学生对象，用迭代器和foreach循环，输出所有学生学号信息

下面是符合要求的代码示例：

import java.util.LinkedList;
import java.util.Iterator;

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

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

    public abstract void eat();
    public abstract void sleep();
}

class Student extends Person {
    private String studentNo;

    public Student(String name, int age, String studentNo) {
        super(name, age);
        this.studentNo = studentNo;
    }

    @Override
    public void eat() {
        System.out.println("I love eating.");
    }

    @Override
    public void sleep() {
        System.out.println("I love sleeping.");
    }

    public void study() {
        System.out.println("I love studying.");
    }

    public String getStudentNo() {
        return studentNo;
    }
}

class Worker extends Person {
    private String workerNo;

    public Worker(String name, int age, String workerNo) {
        super(name, age);
        this.workerNo = workerNo;
    }

    @Override
    public void eat() {
        System.out.println("I love eating.");
    }

    @Override
    public void sleep() {
        System.out.println("I love sleeping.");
    }

    public void work() {
        System.out.println("I love working.");
    }

    public String getWorkerNo() {
        return workerNo;
    }
}

public class Test {
    public static void main(String[] args) {
        Student student = new Student("Tom", 18, "001");
        Worker worker = new Worker("Jerry", 30, "002");

        System.out.println("Student name: " + student.getName());
        System.out.println("Student age: " + student.getAge());
        System.out.println("Student studentNo: " + student.getStudentNo());
        student.eat();
        student.sleep();
        student.study();
        System.out.println("----------------");
        System.out.println("Worker name: " + worker.getName());
        System.out.println("Worker age: " + worker.getAge());
        System.out.println("Worker workerNo: " + worker.getWorkerNo());
        worker.eat();
        worker.sleep();
        worker.work();
        System.out.println("----------------");

        LinkedList<Student> studentList = new LinkedList<>();
        studentList.add(new Student("Lucy", 20, "003"));
        studentList.add(new Student("Lily", 19, "004"));
        studentList.add(new Student("Bob", 21, "005"));
        studentList.add(new Student("Alice", 22, "006"));
        studentList.add(new Student("Kevin", 23, "007"));

        Iterator<Student> it = studentList.iterator();
        while (it.hasNext()) {
            Student s = it.next();
            System.out.println("Student studentNo: " + s.getStudentNo());
        }

        System.out.println("----------------");

        for (Student s : studentList) {
            System.out.println("Student studentNo: " + s.getStudentNo());
        }
    }
}

输出结果：

Student name: Tom
Student age: 18
Student studentNo: 001
I love eating.
I love sleeping.
I love studying.
----------------
Worker name: Jerry
Worker age: 30
Worker workerNo: 002
I love eating.
I love sleeping.
I love working.
----------------
Student studentNo: 003
Student studentNo: 004
Student studentNo: 005
Student studentNo: 006
Student studentNo: 007
----------------
Student studentNo: 003
Student studentNo: 004
Student studentNo: 005
Student studentNo: 006
Student studentNo: 007