package collection.map.demo;

import java.util.ArrayList;

import java.util.List;

/*

?* 備選課程類

?*/

public class ListTest {

public List coursesToSelect;

/*

* 用于存放備選課程的容器List

*/

public ListTest(){

this.coursesToSelect=new ArrayList();

}

/*

* 用于往coursesToSelect中添加備選課程

*/

public void testAdd(){

//創建一個課程對象，并通過調用add方法，添加到備選課程List中

Course cr1=new Course("1","數據結構");

coursesToSelect.add(cr1);

Course temp=(Course) coursesToSelect.get(0);//強制轉換，在List中取出的是object的對象

System.out.println("添加了課程:"+temp.id+": "+temp.name);

Course cr2=new Course("2","離散數學");

coursesToSelect.add(0,cr2);//傳遞進去的位置參數不能超過List的長度

Course temp2=(Course) coursesToSelect.get(0);

System.out.println("添加了課程:"+temp2.id+": "+temp2.name);

Course[] course={new Course("3","高等數學"),new Course("4","運籌學")};

coursesToSelect.addAll(Arrays.asList(course));

}

public static void main (String[]args){

ListTest lt=new ListTest();

lt.testAdd();

}

}

package?collection.map.demo;

import?java.util.ArrayList;
import?java.util.List;
/*
?*?備選課程類
?*/
public?class?ListTest?{
	public?List?coursesToSelect;
	/*
	?*?用于存放備選課程的容器List
	?*/
	public?ListTest(){
		this.coursesToSelect=new?ArrayList();
	}
	/*
	?*?用于往coursesToSelect中添加備選課程
	?*/
	public?void?testAdd(){
		//創建一個課程對象，并通過調用add方法，添加到備選課程List中
		Course?cr1=new?Course("1","數據結構");
		coursesToSelect.add(cr1);
		Course?temp=(Course)?coursesToSelect.get(0);//強制轉換，在List中取出的是object的對象
		System.out.println("添加了課程:"+temp.id+":?"+temp.name);
		Course?cr2=new?Course("2","離散數學");
		coursesToSelect.add(0,cr2);//傳遞進去的位置參數不能超過List的長度
		Course?temp2=(Course)?coursesToSelect.get(0);
		System.out.println("添加了課程:"+temp2.id+":?"+temp2.name);
		Course[]?course={new?Course("3","高等數學"),new?Course("4","運籌學")};
		coursesToSelect.addAll(Arrays.asList(course));
		
	}
	public?static?void?main?(String[]args){
		ListTest?lt=new?ListTest();
		lt.testAdd();
	}

}