用Java编写程序。(哪里错了)

Question

public static void main(String[] args) {
Person s1 = new Person ();
Person s2 = new Person ();
s1.name ="张三";
s1.age =18;
s1.xuexiao ="湖南邮电";
s1.zhiye ="学生";
System.out.println(s1.name);
System.out.println(s1.age);
System.out.println(s1.xuexiao);
System.out.println(s1.zhiye);
s2.name ="李四";
s2.age =20;
s2.xuexiao ="湖南邮电";
s2.zhiye ="工人";
System.out.println(s2.name);
System.out.println(s2.age);
System.out.println(s2.xuexiao);
System.out.println(s2.zhiye);
}

Answer 1

得看看Person类怎么定义的