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


public?class?Student?{
private?String?id;
private?String?name;
public?List<kecheng>?yxkc;
public?Student?(String?id,String?name){
?this.id=id;
?this.name=name;
?this.yxkc=new?ArrayList<kecheng>();
?
}
public?String?getId()?{
?return?id;
}
public?void?setId(String?id)?{
?this.id?=?id;
}
public?String?getName()?{
?return?name;
}
public?void?setName(String?name)?{
?this.name?=?name;
}
}

public class kecheng {
private String id;
private String name;
public? kecheng(String id,String name)
{this.id=id;
this.name=name;
?}
public kecheng(){}//為了繼承能實現，所以手動增加 一個無參構造器；
public String getId() {
?return id;
}
public void setId(String id) {
?this.id = id;
}
public String getName() {
?return name;
}
public void setName(String name) {
?this.name = name;
}
}

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Scanner;

public class Test {
public List<kecheng> allkc;
public Test(){
?this.allkc=new ArrayList<kecheng>();
}
/*public void testadd(){
?kecheng k1=new kecheng("1","數據結構");
?allkc.add(k1);
?kecheng s1=(kecheng)allkc.get(0);
?System.out.println("課程《"+s1.getName()+"》添加成功,課程號為"+s1.getId());
}*/
public void testadd(){
?System.out.println("請輸入要添加的課程序號和課程名");
?Scanner s=new Scanner(System.in);
?String a,b;
?a=s.next();
?b=s.next();
?kecheng k1=new kecheng(a,b);
?allkc.add(k1);
?System.out.println("課程添加成功!");
}
?public void foreach()
?{
??for(kecheng c:allkc)
??{System.out.println("課程《"+c.getName()+"》,課程號為"+c.getId());}
?}
?public void choose()
?{
??System.out.println("請輸入你的學號和姓名。");
??Scanner nn=new Scanner(System.in);
??String num=nn.next();
??String name=nn.next();
??Student s=new Student(num,name);
??for(int i=0;i<2;i++){
??System.out.println("請輸入你要選擇的課程的課序號：");
??String n=nn.next();
??for(kecheng c:allkc)
??{
???if(c.getId().equals(n))
???{
????s.yxkc.add(c);
???}
??}
??}
??Iterator <kecheng> ic= s.yxkc.iterator();
??System.out.println("你選取了如下課程：");
??while(ic.hasNext())
??{
???kecheng syx=ic.next();
???System.out.println("課程《"+syx.getName()+"》,課程號為"+syx.getId());
??}
?}

?/**
? * @param args
? */
?public static void main(String[] args) {
??// TODO Auto-generated method stub
??Test t=new Test();
??System.out.println("請選擇：0 教師，1 學生");
??Scanner in=new Scanner(System.in);
??int bool=in.nextInt();
?if(bool==0){
??System.out.println("請輸入要添加的課程的數量：");
??Scanner sadmin=new Scanner(System.in);
??int i=sadmin.nextInt();
??for(int k=0;k<i;k++)
??{
???t.testadd();
??}
??System.out.println("供選擇的課程有：");
??t.foreach();
??t.choose();
?}
?else if(bool==1){
???t.choose();
??}else
???{System.out.println("輸入異常 請檢查后重新輸入！");}
?}//main函數的

}