import?java.util.*;

/**
?*?This?class?contains?methods?to?process?array?lists?of?{@link?Student}
?*?objects.
?*
?*?@author??autor?name
?*?@version??1.0.0
?*?@see??Student
?*?@see??ArrayList
?*/
public?class??StudentArrayList??{

	/**
	?*?Returns?an?array?list?with?three?elements.
	?*
	?*?@param?first??a?Student?object.
	?*?@param?second??a?Student?object.
	?*?@param?third??a?Student?object.
	?*?@return?an?array?list?with?the?objects?first
	?*???????????second?and?third
	?*/
	public?static?ArrayList?makeArrayList（
		Student??first
		Student??second
		Student??third）??{




	????ArrayList?student=new?ArrayList（）;
	????student.add（first）;
????????????student.add（second）;
????????????student.add（third）;
	????return?student;
	}

	/**
	?*?Returns?an?array?list?with?the?same?elements?of?the?specified?array
	?*?arranged?in?the?same?order.
	?*
	?*?@param?array??an?array?with?Student?objects?.
	?*?@return?an?array?list?with?the?same?elements?of?the?specified?array
	?*?????????arranged?in?the?same?order
	?*/
	public?static?ArrayList?makeArrayListFromArray（Student[]?array）?{
		
		
		
		
		
????????ArrayList?student=new?ArrayList（）;
????????for（Student?std:array）{
????????	student.add（std）;
????????	}
	???return?student;	
	}

	/**
	?*?Returns?true?if?the?specified?array?list?contains?a
	?*?student?whose?id?matches?the?specified?ID.
	?*
	?*?@param?arrayList??an?array?list?of?Student?objects.
	?*?@param?id??a?student?ID.
	?*?@return??true?if?the?specified?array?list?contains?a
	?*??????????student?whose?ID?matches?the?specified?ID;
	?*??????????false?otherwise.
	?*/
	public?static?boolean?hasStudent（
		ArrayList??arrayList
		int??id）??{
???????
???????
???????for（Student?std:arrayList）{
???????	??if（std.getId（）==id）
???????	????return?true;
???????	}
???????	return?false;
		
	}

	/**
	?*?Returns?the?number?of?students?in?the?specified?array?list?whose
	?*?grade?is?greater?than?or?equal?to?the?specified?grade.
	?*
	?*?@param?arrayList??an?array?list?of?Student?objects.
	?*?@param?grade??a?grade.
	?*?@return??the?number?of?students?in?the?specified?array?list?whose
	?*??????????grade?is?greater?than?or?equal?to?the?specified?grade.
	?*/
	public?static?int?countGradeGreaterOrEqual（
		ArrayList?arrayList
		int?grade）??{

???????int?count=0;
???????for（Student?std:arrayList）{
???????	if（std.getGrade（）>=grade）
???????	???++count;
???????	}
????????return?count;		
	}

	/**
	?*?Returns?the?smallest?grade?of?the?students?in?the?specified?array?list.
	?*?

	?*?This?method?assumes?that?the?array?list?is?not?empty.
	?*
	?*?@param?arrayList??an?array?list?of?Student?objects.
	?*?@return??the?smallest?grade?of?the?students?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2010-11-30?22:26??practical?quiz?8\
?????目錄???????????0??2010-11-30?22:26??practical?quiz?8\student-files\
?????文件????????1088??2006-01-11?06:07??practical?quiz?8\student-files\Student.class
?????文件????????2512??2005-12-03?00:19??practical?quiz?8\student-files\Student.java
?????文件????????1382??2006-01-11?06:07??practical?quiz?8\student-files\StudentArrayList.class
?????文件????????4392??2005-12-01?01:44??practical?quiz?8\student-files\StudentArrayList.java
?????文件????????6463??2006-01-11?06:07??practical?quiz?8\student-files\TestStudentArrayList.class
?????文件????????9785??2005-12-01?01:44??practical?quiz?8\student-files\TestStudentArrayList.java
?????文件????????5373??2010-11-30?22:24??practical?quiz?8\StudentArrayList.java