public static void main(String[] args) {

SetTest st=new SetTest();

st.testAdd();

st.testForEach();

//創建一個學生對象

Student student=new Student("1","小明");

System.out.println("歡迎學生："+student.name+"選課！");

//創建一個Scanner對象，用來接受從鍵盤輸入的課程ID

Scanner console=new Scanner(System.in);

for(int i=0;i<3;i++) {

System.out.print("請輸入課程ID");

String courseId=console.next();

for(Course cr:st.coursesToSelect) {

if(cr.id.equals(courseId)) {

student.courses.add(cr);

}

}

for(Course cr:student.courses ){

System.out.println("選擇了課程："+cr.id+":"+cr.name);

}

}