JAVA面向对象基础：入门，搞懂对象

 

package com.itheima.duyixiang;

import java.util.ArrayList;
import java.util.List;

public class Test {
    public static void main(String[] args) {
        Student s1=new Student();
        s1.name="凯文";
        s1.yuwen=22;
        s1.shuxue=10;
        s1.tall();
        s1.pingjun();
    }
}

 

 

 

 

 

面向对象本质：