import?java.awt.*;
import?javax.swing.*;
import?javax.swing.event.*;
import?java.awt.event.*;
import?java.util.Collections;
import?java.util.Comparator;
import?java.util.Vector;


class?Student{????????????????//先創(chuàng)建一個(gè)學(xué)生類(lèi)?包含學(xué)號(hào)（sno）?成績(jī)（grade）
	String?sno;
	int?grade;
	
	public?Student（String?sint?g）?{
		sno=s;
		grade=g;
	}
	
	public?String?getsno（）?{
		return?sno;????????????????????????????//讀取學(xué)號(hào)
	}
	
	public?int?getgrade（）?{
		return?grade;??????????????????????????//讀取成績(jī)
	}
	
	public?void?changegrade（int?x）?{
		grade=x;????????????????????????????????//當(dāng)輸入相同學(xué)號(hào)的學(xué)生時(shí)用來(lái)更新數(shù)據(jù)
	}
	
}



public?class?Grades?extends?Jframe?{

	Vector?students;????????????????????????
	鼠標(biāo)?h;
	
	
	//主界面的組件
	JPanel?輸入??查詢(xún)??排序;
	JTabbedPane?選項(xiàng)卡;
	
	
	//輸入成績(jī)界面使用的組件
	Box?box1_輸入box2_輸入baseBox_輸入;?
	JButton?jb_輸入;
	JTextField?jtf1_輸入jtf2_輸入jtf3_輸入jtf4_輸入;
	
	//查詢(xún)成績(jī)界面使用的組件
	Box?box1_查詢(xún)box2_查詢(xún)baseBox_查詢(xún);??
	JButton?jb_查詢(xún);
	JLabel?jla_查詢(xún)show_查詢(xún);
	JTextField?jtf_查詢(xún);
	JTextArea?JTA_查詢(xún);
	?
	//成績(jī)排序界面使用的組件
	Box?box1_排序box2_排序;;
	JButton?jb_排序;
	JTextArea?JTA_排序;
	
	//創(chuàng)建專(zhuān)門(mén)用來(lái)處理鼠標(biāo)點(diǎn)擊事件的類(lèi)
	class?鼠標(biāo)?implements?ActionListener{
		
		public?void?actionPerformed（ActionEvent?e）?{
			
			if（e.getSource（）?==?jb_輸入）?{???????????????????????//輸入功能
				int?flag=0;
				String?s?=?jtf1_輸入.getText（）;
				int?gra?=?Integer.parseInt（?jtf2_輸入.getText（）?）;
				Student?stu?=?new?Student（?s?gra?）;
				for（int?i=0;i					String?t?=?students.get（i）.getsno（）;?????????//遇到相同學(xué)號(hào)更新該同學(xué)的成績(jī)數(shù)據(jù)
					if（s.equals（t））?{
						flag=1;
						students.get（i）.changegrade（gra）;
					}
				}
				if（flag==0）?{
					students.add（?stu?）;
					JOptionPane.showMessageDialog（?null?“輸入成功““輸入數(shù)據(jù)“JOptionPane.PLAIN_MESSAGE?）;
				}
				else?{
					JOptionPane.showMessageDialog（?null?“修改該學(xué)生成績(jī)成功““修改成績(jī)“JOptionPane.PLAIN_MESSAGE?）;
					}
				jtf1_輸入.setText（?null?）;
				jtf2_輸入.setText（?null?）;??????????????????????//輸入成功后清空?等待下一次輸入
			}
			
			
			
			else?if（e.getSource（）==jb_查詢(xún)）?{
				int?flag=0;
				String?s?=?jtf_查詢(xún).getText（）;
				for（int?i=0;i					String?t?=?students.get（i）.getsno（）;
					if（s.equals（t））?{
						flag=1;
						JTA_查詢(xún).setText（“存在該學(xué)生：\n\n“）;
						JTA_查詢(xún).append（“學(xué)號(hào)：“+s+“?成績(jī)：“+students.get（i）.getgrade（））;
						break;
					}
				}
				if（flag==0）?{
					JTA_查詢(xún).setText（“查詢(xún)失敗\n?不存在學(xué)號(hào)為“+s+“的學(xué)生“）;
		
				}
				}
			
			
			else?if（e.getSource（）==jb_排序）?{
				if（students.size（）>0）?{
					Collections.sort（?students?new?Comparator（）?{
							?public?int?compare（?object?o1?object?o2?）
							{
							?
							return?（（Student）o2）.getgrade（）-（（Student）o1）.getgrade（）;
							?
							}
							?
							}）;
					JTA_排序.setText（“學(xué)生成績(jī)由高到低為：\n“）;
					for（int?i=0;i						JTA_排序.append（“學(xué)號(hào)為：“+students.get（i）.getsno（）+“的成績(jī)?yōu)?“+students.get（i）.getgrade（）+“\n“）;
						
					}
				}
				
				else?{
					JTA_排序.setText（“

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

?????文件????????303??2018-05-16?19:28??Grades\.classpath

?????文件????????382??2018-05-16?19:28??Grades\.project

?????文件????????598??2018-05-16?19:28??Grades\.settings\org.eclipse.jdt.core.prefs

?????文件????????743??2018-06-13?23:47??Grades\bin\Grades$鼠標(biāo)$1.class

?????文件???????3177??2018-06-13?23:47??Grades\bin\Grades$鼠標(biāo).class

?????文件???????4051??2018-06-13?23:47??Grades\bin\Grades.class

?????文件????????667??2018-06-13?23:47??Grades\bin\Student.class

?????文件???????6579??2018-06-13?23:47??Grades\src\Grades.java

?????目錄??????????0??2018-05-16?19:28??Grades\.settings

?????目錄??????????0??2018-06-11?11:09??Grades\bin

?????目錄??????????0??2018-05-16?19:28??Grades\src

?????目錄??????????0??2018-05-16?19:28??Grades

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

????????????????16500????????????????????12