抽象与集继承

package com.dengbao;

public class DemoPerson {

    public static void main(String[] args) {
        Person student=new Student("旺财",3, 90.5f);
        Person worker=new Woker("小强",1, 8125.5f);
        Person student1=new Student("小黄",8, 1000f);
        Person worker1=new Woker("小刘",12, 18125.5f);
        print(student.speak());
        print(worker.speak());
        print(student1.speak());
        print(worker1.speak());
    }
    private static void print(String speak) {
        System.out.println(speak);
    }
}

package com.dengbao;

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 com.dengbao;

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;
    }
}

 

 

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