请大神们找出原因
谢谢解答,本人太粗心了
package com.imooc.collection;
import java.util.HashSet;
public class Student {
public String id;
public String name;
public Set<Course> courses;
public Student (String id,String name) {
this.id = id;
this.name = name;
this.courses = new HashSet<Course>();
}Student类写对了吗?是不是写成下面这样了
public Set<Course> Courses;