package?entity;

import?java.util.HashMap;
import?java.util.Scanner;

public?class?Homework2?{
	public?static?void?main（String[]?args）?{
		HashMap?students=new?HashMap（）;
		Scanner?input=new?Scanner（System.in）;
		Student?stu1=new?Student（“楊過“?95）;
		Student?stu2=new?Student（“小龍女“?99）;
		Student?stu3=new?Student（“張無忌“?88）;
		Student?stu4=new?Student（“趙敏“?90）;
		
		students.put（“楊過“?stu1）;
		students.put（“小龍女“?stu2）;
		students.put（“張無忌“?stu3）;
		students.put（“趙敏“?stu4）;
		
		System.out.println（“請(qǐng)輸入學(xué)生姓名：“）;
		String?key=input.next（）;
		
		if（students.containsKey（key））{
			Student?stu=?students.get（key）;
			System.out.println（stu.getName（）+“的成績(jī)是：“+stu.getScore（））;
			
		}
		System.out.println（“----------所有學(xué)生的成績(jī)是-----------“）;
		for（object?value:students.values（））{
			Student?stu=（Student）?value;
			System.out.println（stu.getName（）+“的成績(jī)是：“+stu.getScore（））;
		}
					
	}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????301??2016-02-26?11:51??CollectionHomework\.classpath

?????文件????????394??2016-02-26?11:51??CollectionHomework\.project

?????文件????????598??2016-02-26?11:51??CollectionHomework\.settings\org.eclipse.jdt.core.prefs

?????文件???????2380??2016-02-28?16:08??CollectionHomework\bin\entity\Homework2.class

?????文件???????2698??2016-02-28?17:54??CollectionHomework\bin\entity\Homework3.class

?????文件???????2928??2016-02-28?18:15??CollectionHomework\bin\entity\Homework4.class

?????文件???????1810??2016-02-28?18:12??CollectionHomework\bin\entity\Student.class

?????文件???????1001??2016-02-27?23:31??CollectionHomework\src\entity\Homework2.java

?????文件???????1251??2016-02-28?17:54??CollectionHomework\src\entity\Homework3.java

?????文件???????1443??2016-02-28?18:15??CollectionHomework\src\entity\Homework4.java

?????文件???????1260??2016-02-28?18:12??CollectionHomework\src\entity\Student.java

?????目錄??????????0??2016-02-28?18:17??CollectionHomework\bin\entity

?????目錄??????????0??2016-02-28?18:17??CollectionHomework\src\entity

?????目錄??????????0??2016-02-28?18:17??CollectionHomework\.settings

?????目錄??????????0??2016-02-28?18:17??CollectionHomework\bin

?????目錄??????????0??2016-02-28?18:17??CollectionHomework\src

?????目錄??????????0??2016-02-28?18:17??CollectionHomework

-----------?---------??----------?-----??----

????????????????16064????????????????????17