阅读程序写结果 class Person { public Person() { System.out.println("Person"); } } class Student extends Person { public Student() { System.out.println("Student"); } } class CollegeStudent extends Student { public CollegeStudent() { System.out.println("CollegeStudent"); } } public class Test3 { public static void main(String[] args) { CollegeStudent cs = new CollegeStudent(); } }