package?com.imooc.collection;

import?java.util.ArrayList;
import?java.util.Arrays;
import?java.util.List;
import?java.util.Scanner;

public?class?TestSet?{
	public?List<Course>?coursesToSelect;
	private?Scanner?console;
	public?TestSet(){
		this.coursesToSelect=new?ArrayList<Course>();
		console=new?Scanner(System.in);
	}
	???public?void?testAdd(){
	????	??/*
	????	???*?創(chuàng)建一個實例對象，并通過調用add方法添加到備選課程中
	????	???*/
	????	??Course?cr1=new?Course("1","數據結構");
	????	??coursesToSelect.add(cr1);//添加課程1
	????	??Course?temp=(Course)?coursesToSelect.get(0);
	????	??System.out.println("插了一門課程："+temp.id+":"+temp.name);
	????	??
	????	??Course?cr2=new?Course("2","C語言");
	????	??coursesToSelect.add(1,?cr2);//添加課程2
	????	??Course?temp2=(Course)coursesToSelect.get(1);//取出第一個課程
	????	??System.out.println("插入了一門課程："+cr2.id+":"+cr2.name);//輸出第一個課程
	????	??
	????	??Course[]?course={new?Course("3","高等數學"),new?Course("4","射雕英雄傳")};
	????	??coursesToSelect.addAll(Arrays.asList(course));
	????	??Course?temp3=(Course)?coursesToSelect.get(2);
	????	??Course?temp4=(Course)?coursesToSelect.get(3);
	????	??System.out.println("插入了兩門課程："+temp3.id+":"+temp3.name+";"+
	????	??temp4.id+":"+temp4.name);
	???}
	???
	???public?void?testForeach(){
	????	??System.out.println("通過foreach方法遍歷List：");
	????	??for(Object?obj:coursesToSelect){
	????		??Course?cr=(Course)obj;
	????		??System.out.println(cr.id+":"+cr.name);	??
	????	??}
	???}
	???
	???/*
	????*?測試List的contains方法
	????*/
	???public?void?testListContains(){
		???Course?course=coursesToSelect.get(0);
		???System.out.println("取得課程："+course.name);
		???System.out.println("是否包含課程"+course.name+","+coursesToSelect.contains(course));
		???//提示用戶輸入想要查詢的課程
		???System.out.println("請輸入課程名稱：");
		???String?name=console.next();
		???Course?course2=new?Course();//調用無參構造器
		???course2.name=name;
		???System.out.println("取得課程："+course2.name);
		???System.out.println("是否包含課程"+course2.name+","+coursesToSelect.contains(course2));
	???}
	???
	???public?void?createStudentAndSelectCourses(){
	????????Student??student=new?Student("1",?"小冒");
??	????????System.out.println("歡迎"+student.name+"選課！");
??	????????for(int?i=0;i<3;i++){	???
??	?????????????System.out.println("請輸入想選的課程id：");
??	?????????????Scanner?input=new?Scanner(System.in);
??	?????????????String?courseID=input.next();//注意類型?。?！，
??	?????????????for(Course?course:coursesToSelect){
??		????if(course.id.equals(courseID)){//前后類型相同，否則為否，課程添加不進去?。。???			???student.courses.add(course);???
???????}
??	???}
??	???}
??	???}
	???/*
	????*?測試Set的contains方法
	????*/
	?
		
	???public?void?testSetContains(){
		???System.out.println("請輸入學生已選的課程名稱：");
		???String?name=console.next();
		???Course?course2=new?Course();//調用無參構造器
		???course2.name=name;
		???System.out.println("取得課程："+course2.name);
		???System.out.println("是否包含課程"+course2.name+","+student.courses.contains(course2));
		???
	???}
	???
	???
	???public?static?void?main(String[]?args){
		???TestSet?ts=new?TestSet();
??????	???ts.testAdd();
//??????	???ts.testListContains();
??	???????ts.testForeach();
//??????	???Student?student=new?Student("1",?"小冒");
//??????	???System.out.println("歡迎"+student.name+"選課！");
//??????	?
//??????	???
//??????	???for(int?i=0;i<3;i++){	???
//??????	???System.out.println("請輸入想選的課程id：");
//??????	??Scanner?input=new?Scanner(System.in);
//??????	???String?courseID=input.next();//注意類型?。?！，
//??????	???for(Course?course:ts.coursesToSelect){
//??????		???if(course.id.equals(courseID)){//前后類型相同，否則為否，課程添加不進去?。。?//??????			???student.courses.add(course);???
//??????		???}?
//??????	???}???
//??????	???}
//??????????ts.testForEachForSet(student);
//????????
?	???}
	???public?void?testForEachForSet(Student?student){
		???System.out.println("共選擇了"+student.courses.size()+"門課程！");
???		???for(Course?course:student.courses){
???			???System.out.println("選擇了課程："+course.id+":"+course.name);
???		???}???
???????}
	???/*
	????*?遍歷學生的所有課程
	????*/
	??


}

錯誤截圖：