package?com.imooc.collection;

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

/**
?*?@author?榮
?*
?*/
public?class?ListTest?{

	public?List?coursesToSelect;
	
	public?ListTest(){
		this.coursesToSelect?=?new?ArrayList();
	}
	
	public?void?testAdd(){
		Course?cr1?=?new?Course("1","數據結構");
		coursesToSelect.add(cr1);
		Course?temp?=?(Course)?coursesToSelect.get(0);
		System.out.println("添加了課程"?+?temp.id?+?":"?+?temp.name);
		
		Course?cr2?=?new?Course("2","C語言");
		coursesToSelect.add(0,?cr2);
		Course?temp2?=?(Course)coursesToSelect.get(0);
		System.out.println("添加了課程"?+?temp2.id?+?"："?+?temp2.name);
//	????拋出數組下標越界異常	
//		Course?cr3?=?new?Course("3","test");
//		coursesToSelect.add(6,?cr3);
//		Course?temp3?=?(Course)?coursesToSelect.get(2);
//		System.out.println("添加了課程"?+?temp3.id?+?":"?+?temp3.name);
		?
		Course[]?course?=?{new?Course("3","離散數學"),new?Course("4","科技英語")};
		coursesToSelect.addAll(Arrays.asList(course));?
		Course?temp3?=?(Course)coursesToSelect.get(2);
		Course?temp4?=?(Course)coursesToSelect.get(3);
		System.out.println("添加了兩門課程"?+?temp3.id?+?":"?+?temp3.name?+";"+
				temp4.id?+?":"?+?temp4.name);
		
		Course[]?course2?=?{new?Course("5","高等數學"),new?Course("6","大學英語")};
		coursesToSelect.addAll(2,Arrays.asList(course2));?
		Course?temp5?=?(Course)coursesToSelect.get(2);
		Course?temp6?=?(Course)coursesToSelect.get(3);
		System.out.println("添加了兩門課程"?+?temp5.id?+?":"?+?temp5.name?+";"+
				temp6.id?+?":"?+?temp6.name);
		
	public?void?testGet(){
		int?size?=?coursesToSelect.size();
		System.out.println();
		System.out.println("有如下課程待選：");
		for(int?i?=?0;i<size;i++){
			Course?cr?=?coursesToSelect.get(i);
			System.out.println("課程:"?+?cr.id?+?":"?+?cr.name);
		}
			
	}
	}
	public?static?void?main(String[]?args){
		ListTest?lt?=?new?ListTest();
		lt.testAdd();
		lt.testGet();
	}
}

49行和63行會提示錯誤