package Hzy;public abstract class Person {    private String name;    private int age;    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 Person(String name, int age) {        this.name = name;        this.age = age;    }    public Person() {        super();    }    @Override    public String toString() {        return "Person [name=" + name + ", age=" + age + "]";    }    public abstract String speak();}

package Hzy;public class Student extends Person{    private float score;        public Student(String name, int age, float score) {        super(name, age);        this.setScore(score);    }    @Override    public String speak() {        return "学生说-->我的姓名："+super.getName()+" "+super.getAge()+"岁 "+this.score+"分";    }    public float getScore() {        return score;    }    public void setScore(float score) {        this.score = score;    }}

package Hzy;public class Worker extends Person {    private float salary;        public Worker(String name, int age, float salary) {        super(name, age);        this.setSalary(salary);    }    @Override     public String speak() {        return "工人说 -->我的姓名："+super.getName()+" "+super.getAge()+"岁 "+this.salary+"元";    }    public float getSalary() {        return salary;    }    public void setSalary(float salary) {        this.salary = salary;    }}

package Hzy;public class DemoStudentWorker {    public static void main(String[] args) {        Person student=new Student("旺财",3, 90.5f);        Person worker=new Worker("小强",1, 8125.5f);        print(student.speak());        print(worker.speak());    }    private static void print(String speak) {        System.out.println(speak);    }}