java错误找不到符号是什么意思

Question

public class ParamTest3{public void change(Person person,Person person2){person.name = "lisi";person2.name = "wangwu";}public static void main(String[] args){Person person = new Person();Person.name = "zhangsan";Person person2 = person;ParamTest3 test = new ParamTest3();test.change(person,person2);System.out.println(person.name);}}大家帮忙看看这个程序，初学者，什么都不会，谢谢啦！