Java學生信息管理Swing窗體

1、Java學生信息學習管理Swing窗體Java學生信息學習管理Swing窗體31/31Java學生信息學習管理Swing窗體.實驗名稱：實驗5：綜合性程序設計簡單學生信息管理系統(tǒng)班級：*姓名：Zzz學號：20151601*一、實驗目的二、實驗內容與結果（1）任務描述(1.3與1.4二選一，建議選擇1.4）利用課程所學知識，設計并實現(xiàn)一個簡單學生信息管理系統(tǒng)，要求以下：聲明Student類，該類實現(xiàn)Serializable接口以表示該類能夠進行序列化。該類有姓名、學號（long），math、os、java用來存放對應的成績，在構造方法中進行姓名、學號、課程成績的賦值。Override由Objec

2、t繼承來的toString方法以便以友好格式顯示自己的屬性，格式為：張三12os:90java:90math:90。成立一個類，利用數(shù)據(jù)庫來儲藏多個Student，寫完一個方法在main中寫一段測試代碼，運行以保證目前所做工作的正確性。有以下方法：add(Studentstu)：能夠增加新的學生，并保存在數(shù)據(jù)庫中。update(Studentstu)：能夠更正特定的學生，并保存在數(shù)據(jù)庫中。dispAll()：能夠顯示全部的學生信息。findById(longid)：能夠依照學號來查找，并顯示吻合條件的學生信息，查無該人的話顯示錯誤信息。findByName(Stringname)：能夠依照姓名

3、查找學生，找到后顯示其信息，查無此人顯示錯誤信息。delById(longid)：能夠依照id刪除學生的信息，爾后顯示找到該人。若查無此人，顯示相應的錯誤信息。1.3（控制臺方式）完滿應用程序，實現(xiàn)相應的功能以下：增加學生信息、更正指定學號的學生信息、顯示全部學生信息、按學號查找、按姓名查找、按學號刪除、按成績排序和退出。（Swing窗體方式）完滿應用程序，實現(xiàn)相應的功能以下：增加學生信息、更正指定學號的學生信息、顯示全部學生信息、按學號查找、按姓名查找、按學號刪除、按成績排序和退出。（2）辦理思路及要點技術說明（3）程序完滿源碼（要求格式規(guī)范，合適說明）（4）運行結果截圖（按每個操作分別截圖

4、）（2）辦理思路及要點技術說明分三個模塊：一是jdbc的代碼，另一個是Swing和AWT的代碼，剩下是Student類。Jdbc一共有兩個類：DBUtil（連接工具類）和Sql類（辦理jdbc功能的靜態(tài)方法）.Swing和AWT一個有兩個類：MyJFrame成立總窗口，MyJPanel對窗口內的面板行修飾。爾后就是Student類和Main主方法類。要點部分：1）在主窗體中add三個Jpanel，基層和第二層左右三個，右邊的Jpanel實現(xiàn)cardLayout布局，左邊的Jpanel增加按鈕并增加ActionListener來實現(xiàn)對象的card切換達到不同樣按鈕進入不同樣功能面板的目的。2）在

5、MyJPanel類中，全部的init方法均傳達參數(shù)JPanelp，對傳達過來的Panel進行加工修飾，并且調用Sql里面對應功能的方法。3）Sql中的顯示全部信息的方法中使用了ArrayList來儲藏從studenttbl中讀取的對象信息，儲藏此后為了依照String的方式顯示在JtextArea中，又用了listToString方法，經(jīng)過for循環(huán)并追加回車，使每個對象都轉變?yōu)镾tring并在后邊加上了回車（separator），4）在Sql中的查找，刪除，增加都使用了jdbc中的預辦理PreparedStatement在操作達成后執(zhí)行sts.executeUpdate();5）在Sql排序

6、方法中，把全部的信息都儲藏到list中今后，調用工具類Collections.sort:依照指定比較器產(chǎn)生的序次對指定列表進行排序。（3）程序完滿源碼（要求格式規(guī)范，合適說明）classDBUtilpackagetest;importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.SQLException;publicclassDBUtilprivatestaticStringdriver;privatestaticStringurl;privatestaticStringusername;privatestati

7、cStringpassword;staticdriver=com.mysql.jdbc.Driver;url=jdbc:mysql:/localhost:3306/mydb;username=root;password=123456;publicstaticConnectionopen()tryClass.forName(driver);returnDriverManager.getConnection(url,username,password);.catch(Exceptione)e.printStackTrace();returnnull;publicstaticvoidclose(Co

8、nnectionconn)if(conn!=null)tryconn.close();catch(SQLExceptione)e.printStackTrace();classSqlpackagetest;importjava.sql.Connection;importjava.sql.PreparedStatement;importjava.sql.ResultSet;importjava.sql.SQLException;importjava.sql.Statement;importjava.util.ArrayList;importjava.util.Collections;import

9、java.util.Comparator;importjava.util.List;importjavax.swing.JLabel;importjavax.swing.JOptionPane;importjavax.swing.JTextArea;publicclassSqlpublicstaticStringlistToString(Listlist,charseparator)/使list返回String種類并加入控制符（換行）StringBuildersb=newStringBuilder();for(inti=0;ilist.size();i+)sb.append(list.get(

10、i).append(separator);returnsb.toString().substring(0,sb.toString().length()-1);publicstaticListdisAll()/打印顯示全部信息.盤問Connectionconn=DBUtil.open();Stringsql=selectid,name,frctionJava,fractionMath,fractionOSfromstudentTbl;Statementstmt;trystmt=conn.createStatement();ResultSetrs=stmt.executeQuery(sql);Li

11、stlist=newArrayList();遍歷操作while(rs.next()intid=rs.getInt(1);Stringname=rs.getString(2);doublea=rs.getDouble(3);doubleb=rs.getDouble(4);doublec=rs.getDouble(5);Studentu=newStudent();u.setId(id);u.setName(name);u.setFractionJava(a);u.setFractionMath(b);u.setFractionOS(c);list.add(u);conn.close();retur

12、nlist;catch(SQLExceptione)e.printStackTrace();returnnull;publicstaticvoidFindByID(longid,JLabellblNewLabel)/按ID查找Connectionconn=DBUtil.open();ResultSetrs=null;tryStringsql=select*fromStudentTblwhereid=?;PreparedStatementsts=conn.prepareStatement(sql);sts.setLong(1,id);rs=sts.executeQuery();.while(rs

13、.next()inti=rs.getInt(1);Stringname=rs.getString(2);doublea=rs.getDouble(3);doubleb=rs.getDouble(4);doublec=rs.getDouble(5);lblNewLabel.setText(|+i+|+name+|+a+|+b+|+c);catch(Exceptione)e.printStackTrace();finallytryif(rs.first()!=true)lblNewLabel.setText(查無此人！);catch(SQLExceptione)e.printStackTrace(

14、);publicstaticvoidFindByName(Strings,JLabellblNewLabel)/Name查找Connectionconn=DBUtil.open();ResultSetrs=null;tryStringsql=select*fromStudentTblwherename=?;PreparedStatementsts=conn.prepareStatement(sql);sts.setString(1,s);rs=sts.executeQuery();while(rs.next()intid=rs.getInt(1);Stringname=rs.getString

15、(2);doublea=rs.getDouble(3);doubleb=rs.getDouble(4);doublec=rs.getDouble(5);lblNewLabel.setText(|+id+|+name+|.+a+|+b+|+c);catch(Exceptione)e.printStackTrace();finallytryif(rs.first()!=true)lblNewLabel.setText(查無此人！);catch(SQLExceptione)e.printStackTrace();publicstaticvoidDeleteByID(longid)/刪除Connect

16、ionconn=DBUtil.open();PreparedStatementsts=null;inta=0;trysts=conn.prepareStatement(deletefromStudentTblwhereid=?);sts.setLong(1,id);a=sts.executeUpdate();if(a0)JOptionPane.showMessageDialog(null,刪除成功！,WO,JOptionPane.INFORMATION_MESSAGE);if(a=0)JOptionPane.showMessageDialog(null,無此人！,WO,JOptionPane.

17、INFORMATION_MESSAGE);catch(Exceptione)e.printStackTrace();DBUtil.close(conn);.publicstaticvoidSort(JTextAreata,intindex)/排序盤問Connectionconn=DBUtil.open();Stringsql=selectid,name,frctionJava,fractionMath,fractionOSfromstudentTbl;Statementstmt;trystmt=conn.createStatement();ResultSetrs=stmt.executeQue

18、ry(sql);Listlist=newArrayList();遍歷操作while(rs.next()intid=rs.getInt(1);Stringname=rs.getString(2);doublea=rs.getDouble(3);doubleb=rs.getDouble(4);doublec=rs.getDouble(5);Studentu=newStudent();u.setId(id);u.setName(name);u.setFractionJava(a);u.setFractionMath(b);u.setFractionOS(c);list.add(u);Collecti

19、ons.sort(list,newComparator()publicintcompare(Studento1,Studento2)inti=1;if(index=1)i=(int)(o2.getFractionJava()-o1.getFractionJava();if(index=2)i=(int)(o2.getFractionMath()-o1.getFractionMath();if(index=3)i=(int)(o2.getFractionOS()-o1.getFractionOS();.returni;);Strings=listToString(list,n);ta.setTe

20、xt(s);catch(SQLExceptione)e.printStackTrace();DBUtil.close(conn);publicstaticvoidadd(Studentstu)/增加Connectionconn=DBUtil.open();PreparedStatementsts;trysts=conn.prepareStatement(insertintoStudentTblvalues(?,?,?,?,?);sts.setLong(1,stu.getId();sts.setString(2,stu.getName();sts.setDouble(3,stu.getFract

21、ionJava();sts.setDouble(4,stu.getFractionMath();sts.setDouble(5,stu.getFractionOS();sts.executeUpdate();catch(SQLExceptione)e.printStackTrace();DBUtil.close(conn);publicstaticvoidUpdateStudent(Studentstu)/更新Connectionconn=DBUtil.open();tryStringsql=updatestudenttblsetname=+stu.getName()+,FrctionJava

22、=+stu.getFractionJava()+,FractionMath=+stu.getFractionMath()+,FractionOS=+stu.getFractionOS()+whereid=+stu.getId()+;.PreparedStatementsts=conn.prepareStatement(sql);sts.executeUpdate();catch(Exceptione)e.printStackTrace();classStudentpackagetest;importjava.io.Serializable;publicclassStudentimplement

23、sSerializableprivateStringname;privatelongid;privatedoublefractionOS;privatedoublefractionJava;privatedoublefractionMath;publicStringgetName()returnname;publicvoidsetName(Stringname)=name;publiclonggetId()returnid;publicvoidsetId(longid)this.id=id;publicdoublegetFractionOS()returnfractionOS;publicvo

24、idsetFractionOS(doublefractionOS)this.fractionOS=fractionOS;publicdoublegetFractionJava().returnfractionJava;publicvoidsetFractionJava(doublefractionJava)this.fractionJava=fractionJava;publicdoublegetFractionMath()returnfractionMath;publicvoidsetFractionMath(doublefractionMath)this.fractionMath=frac

25、tionMath;publicStringtoString()return(name+id+Java:+fractionJava+Math:+fractionMath+OS:+fractionOS);classMyJFramepackagetest;importjavax.swing.JFrame;importjavax.swing.JPanel;importjava.awt.BorderLayout;importjava.awt.CardLayout;importjava.awt.Insets;importjava.awt.event.ActionEvent;importjava.awt.e

26、vent.ActionListener;importjavax.swing.JButton;importjava.awt.Color;importjavax.swing.SwingConstants;importjavax.swing.JLabel;importjava.awt.Font;publicclassMyJFrameJFrameframe=newJFrame(Demo);./*/publicvoidinit()frame.setVisible(true);frame.setBounds(100,100,570,474);/JPanelJPanelpanel=newJPanel();p

27、anel.setBackground(newColor(153,204,255);frame.getContentPane().add(panel,BorderLayout.CENTER);panel.setLayout(null);/PanelXYJPanelpanel_x=newJPanel();panel_x.setBackground(newColor(153,204,255);panel_x.setBounds(0,0,141,435);panel.add(panel_x);panel_x.setLayout(null);JPanelpanel_y=newJPanel();panel

28、_y.setBackground(newColor(255,255,255);panel_y.setBounds(140,0,414,435);panel.add(panel_y);功能按鈕/+JButtonb0=newJButton(Home);b0.setHorizontalAlignment(SwingConstants.LEADING);b0.setBackground(newColor(255,255,255);b0.setBounds(34,21,66,23);panel_x.add(b0);JButtonb1=newJButton(u663Eu793A);b1.setBackgr

29、ound(newColor(255,255,255);b1.setBounds(22,66,93,23);panel_x.add(b1);.JButtonb2=newJButton(u67E5u627E(ID);b2.setBackground(newColor(255,255,255);b2.setBounds(22,112,93,23);b2.setMargin(newInsets(0,0,0,0);panel_x.add(b2);JButtonb3=newJButton(u67E5u627E(Name);b3.setBackground(newColor(255,255,255);b3.

30、setBounds(22,157,93,23);b3.setMargin(newInsets(0,0,0,0);panel_x.add(b3);JButtonb4=newJButton(u5220u9664);b4.setBackground(newColor(255,255,255);b4.setBounds(22,200,93,23);panel_x.add(b4);JButtonb5=newJButton(u6392u5E8F);b5.setBounds(22,243,93,23);b5.setBackground(newColor(255,255,255);panel_x.add(b5

31、);JButtonb6=newJButton(u6DFBu52A0);b6.setBounds(22,290,93,23);b6.setBackground(newColor(255,255,255);panel_x.add(b6);JButtonb7=newJButton(u66F4u65B0);b7.setBounds(22,334,93,23);b7.setBackground(newColor(255,255,255);panel_x.add(b7);JButtonbExit=newJButton(u9000u51FA);bExit.setBounds(22,378,93,23);bE

32、xit.setBackground(newColor(255,255,255);panel_x.add(bExit);/+./=CardLayoutcl_panel_y=newCardLayout();/卡片JPanelpanel_y.setLayout(cl_panel_y);JPanelpanel_0=newJPanel();/歡迎界面panel_0.setBackground(newColor(153,204,255);panel_y.add(panel_0,c0);panel_0.setLayout(null);JLabell1=newu7A0Bu5E8F);l1.setFont(ne

33、wFont(宋體,Font.PLAIN,16);l1.setHorizontalAlignment(SwingConstants.CENTER);l1.setBounds(37,33,317,66);panel_0.add(l1);JPanelpanel_1=newJPanel();/顯示panel_y.add(panel_1,c1);JPanelpanel_2=newJPanel();/查找panel_y.add(panel_2,c2);JPanelpanel_3=newJPanel();/查找panel_y.add(panel_3,c3);/MyJPanel.init3(panel_3);

34、JPanelpanel_4=newJPanel();/刪除panel_y.add(panel_4,c4);/MyJPanel.init4(panel_4);JPanelpanel_5=newJPanel();/排序panel_y.add(panel_5,c5);/MyJPanel.init5(panel_5);JPanelpanel_6=newJPanel();/增加panel_y.add(panel_6,c6);.JPanelpanel_7=newJPanel();panel_y.add(panel_7,c7);/MyJPanel.init6(panel_6);/=按鈕事件/=b0.addA

35、ctionListener(newActionListener()publicvoidactionPerformed(ActionEvente)cl_panel_y.show(panel_y,c0););b1.addActionListener(newActionListener()OverridepublicvoidactionPerformed(ActionEvente)MyJPanel.init1(panel_1);cl_panel_y.show(panel_y,c1););b2.addActionListener(newActionListener()Overridepublicvoi

36、dactionPerformed(ActionEvente)MyJPanel.init2(panel_2);cl_panel_y.show(panel_y,c2););b3.addActionListener(newActionListener()OverridepublicvoidactionPerformed(ActionEvente)MyJPanel.init3(panel_3);cl_panel_y.show(panel_y,c3););b4.addActionListener(newActionListener()Override.publicvoidactionPerformed(

37、ActionEvente)MyJPanel.init4(panel_4);cl_panel_y.show(panel_y,c4););b5.addActionListener(newActionListener()OverridepublicvoidactionPerformed(ActionEvente)MyJPanel.init5(panel_5);cl_panel_y.show(panel_y,c5););b6.addActionListener(newActionListener()OverridepublicvoidactionPerformed(ActionEvente)MyJPa

38、nel.init6(panel_6);cl_panel_y.show(panel_y,c6););b7.addActionListener(newActionListener()OverridepublicvoidactionPerformed(ActionEvente)MyJPanel.init7(panel_7);cl_panel_y.show(panel_y,c7););bExit.addActionListener(newActionListener()OverridepublicvoidactionPerformed(ActionEvente)System.exit(0););.cl

39、assMyJPanelpackagetest;importjava.awt.CardLayout;importjava.awt.Font;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjava.util.ArrayList;importjava.util.List;importjavax.swing.JButton;importjavax.swing.JLabel;importjavax.swing.JOptionPane;importjavax.swing.JPanel;importjav

40、ax.swing.JTextArea;importjavax.swing.JTextField;importjavax.swing.SwingConstants;importjava.awt.Color;classMyJPanel顯示staticvoidinit1(JPanelpanel)/JPanelpanel=newJPanel();panel.setBackground(newColor(255,255,255);panel.setBounds(0,0,373,382);panel.setLayout(null);JLabell=newJLabel(=u4E0Bu5217u662Fu62

41、40u6709u67E5u770Bu7684u6240u6709u6570u636Eu4FE1u606F=);/Labell.setFont(newFont(宋體,Font.PLAIN,14);l.setBounds(15,10,336,29);panel.add(l);JTextAreatextArea=newJTextArea();/TextAreatextArea.setFont(newFont(Monospaced,Font.PLAIN,15);textArea.setBackground(newColor(255,255,255);textArea.setBounds(25,49,3

42、26,311);.Listlist=newArrayList();/變換為Stringlist=Sql.disAll();textArea.append(Sql.listToString(list,n);panel.add(textArea);panel.repaint();查找IDstaticvoidinit2(JPanelpanel)JPanelpanel=newJPanel();panel.setBackground(newColor(255,255,255);panel.setBounds(0,0,373,202);panel.setLayout(null);JLabell1=newJ

43、Label(輸入查找的ID:);l1.setBounds(15,39,201,35);l1.setFont(newFont(宋體,Font.PLAIN,15);panel.add(l1);JLabell2=newJLabel(學號姓名JavaMathOS);l2.setBounds(47,80,290,31);l2.setFont(newFont(宋體,Font.PLAIN,15);panel.add(l2);JTextFieldtextField=newJTextField();textField.setBounds(208,39,72,35);textField.setColumns(10

44、);panel.add(textField);JLabell0=newJLabel();l0.setFont(newFont(宋體,Font.PLAIN,14);l0.setBounds(21,120,331,35);JButtonb=newJButton(Y);b.setFont(newFont(宋體,Font.PLAIN,10);.b.setHorizontalAlignment(SwingConstants.LEFT);b.setBackground(newColor(255,255,255);b.setBounds(301,39,45,35);b.addActionListener(n

45、ewActionListener()publicvoidactionPerformed(ActionEventarg0)Strings=textField.getText();longid=Long.parseLong(s);Sql.FindByID(id,l0););panel.add(b);panel.add(l0);查找Namestaticvoidinit3(JPanelpanel)panel.setBounds(0,0,373,202);panel.setBackground(newColor(255,255,255);panel.setLayout(null);JLabell1=ne

46、wJLabel(輸入要查找的姓名:);l1.setBounds(15,39,201,35);l1.setFont(newFont(宋體,Font.PLAIN,15);panel.add(l1);JLabell2=newJLabel(學號姓名JavaMathOS);l2.setBounds(47,80,290,31);l2.setFont(newFont(宋體,Font.PLAIN,15);panel.add(l2);JTextFieldtextField=newJTextField();textField.setBounds(208,39,72,35);textField.setColumns

47、(10);panel.add(textField);.JLabell0=newJLabel();l0.setFont(newFont(宋體,Font.PLAIN,14);l0.setBounds(21,120,331,35);panel.add(l0);JButtonb=newJButton(Y);b.setBounds(301,39,45,35);b.setBackground(newColor(255,255,255);b.addActionListener(newActionListener()publicvoidactionPerformed(ActionEventarg0)Strin

48、gs=textField.getText();Sql.FindByName(s,l0););panel.add(b);刪除staticvoidinit4(JPanelpanel)panel.setBounds(0,0,373,202);panel.setBackground(newColor(255,255,255);panel.setLayout(null);JLabell1=newJLabel(請輸入你要刪除的ID:);l1.setBounds(15,39,201,35);l1.setFont(newFont(宋體,Font.PLAIN,15);panel.add(l1);JTextFie

49、ldtextField=newJTextField();textField.setBounds(95,84,72,35);textField.setColumns(10);panel.add(textField);JLabell0=newJLabel();.l0.setFont(newFont(宋體,Font.PLAIN,14);l0.setBounds(15,137,331,35);panel.add(l0);JButtonb=newJButton(Y);b.setBackground(newColor(255,255,255);b.setHorizontalAlignment(SwingC

50、onstants.LEFT);b.setBounds(199,84,62,35);b.addActionListener(newActionListener()publicvoidactionPerformed(ActionEventarg0)Strings=textField.getText();longid=Long.parseLong(s);Sql.DeleteByID(id););panel.add(b);排序staticvoidinit5(JPanelp)/JPanelp=newJPanel();p.setBackground(newColor(255,255,255);JTextA

51、reaa1=newJTextArea();a1.setFont(newFont(Monospaced,Font.PLAIN,15);JTextAreaa2=newJTextArea();a2.setFont(newFont(Monospaced,Font.PLAIN,15);JTextAreaa3=newJTextArea();a3.setFont(newFont(Monospaced,Font.PLAIN,15);CardLayoutcard=newCardLayout(3,3);JPanelpane=newJPanel(card);pane.setBackground(newColor(2

52、55,255,255);pane.setBounds(45,65,360,500);.JButtonb1_1;JButtonb2_1;JButtonb3_1;b1_1=newJButton(按Java排序);b1_1.setBackground(newColor(255,255,255);b1_1.setBounds(84,20,93,35);b2_1=newJButton(按Math排序);b2_1.setBackground(newColor(255,255,255);b2_1.setBounds(172,20,93,35);b3_1=newJButton(按OS排序);b3_1.setB

53、ackground(newColor(255,255,255);b3_1.setBounds(264,20,87,35);p.setLayout(null);p.add(b1_1);p.add(b2_1);p.add(b3_1);p.add(pane);pane.add(a1,p1);pane.add(a2,p2);pane.add(a3,p3);b1_1.addActionListener(newActionListener()publicvoidactionPerformed(ActionEvente)Sql.Sort(a1,1);card.show(pane,p1););b2_1.add

54、ActionListener(newActionListener()publicvoidactionPerformed(ActionEvente)Sql.Sort(a2,2);card.show(pane,p2););b3_1.addActionListener(newActionListener()publicvoidactionPerformed(ActionEvente)Sql.Sort(a3,3);card.show(pane,p3););.增加staticvoidinit6(JPanelp)/JPanelp=newJPanel();p.setBackground(newColor(2

55、55,255,255);JLabell0,l1,l2,l3,l4,l5;/輸入姓名idjavamathOsJTextFieldt1,t2,t3,t4,t5;/姓名idjavamathOsJButtonb=newJButton(Y);/確認p.setLayout(null);l0=newJLabel(請輸入相關信息:);l0.setFont(newFont(宋體,Font.PLAIN,14);l0.setBounds(0,0,126,30);l1=newJLabel(Name:);l1.setFont(newFont(宋體,Font.PLAIN,14);l1.setHorizontalAlign

56、ment(SwingConstants.CENTER);l1.setBounds(30,30,80,30);t1=newJTextField();/namet1.setBounds(144,30,80,30);l2=newJLabel(ID:);l2.setFont(newFont(宋體,Font.PLAIN,14);l2.setHorizontalAlignment(SwingConstants.CENTER);l2.setBounds(30,70,80,30);t2=newJTextField();/idt2.setBounds(144,70,80,30);l3=newJLabel(Jav

57、a:);l3.setFont(newFont(宋體,Font.PLAIN,14);l3.setHorizontalAlignment(SwingConstants.CENTER);l3.setBounds(30,110,80,30);t3=newJTextField();/idt3.setBounds(144,110,80,30);l4=newJLabel(Math:);l4.setFont(newFont(宋體,Font.PLAIN,14);.l4.setHorizontalAlignment(SwingConstants.CENTER);l4.setBounds(30,150,80,30)

58、;t4=newJTextField();/idt4.setBounds(144,150,80,30);l5=newJLabel(OS:);l5.setFont(newFont(宋體,Font.PLAIN,14);l5.setHorizontalAlignment(SwingConstants.CENTER);l5.setBounds(30,190,80,30);t5=newJTextField();/idt5.setBounds(144,190,80,30);b.setBounds(300,260,50,30);b.setBackground(newColor(255,255,255);b.a

59、ddActionListener(newActionListener()publicvoidactionPerformed(ActionEventarg0)Stringn,id,j,m,o;id=t2.getText();longid1=(long)Integer.parseInt(id);/把String轉變?yōu)镮ntn=t1.getText();j=t3.getText();doublej1=(double)Integer.parseInt(j);/把String轉變?yōu)镮ntm=t4.getText();doublem1=(double)Integer.parseInt(m);o=t5.ge

60、tText();doubleo1=(double)Integer.parseInt(o);Studentstu=newStudent();stu.setId(id1);stu.setName(n);stu.setFractionJava(j1);stu.setFractionMath(m1);stu.setFractionOS(o1);Sql.add(stu);JOptionPane.showMessageDialog(null,添加成功！,WO,JOptionPane.INFORMATION_MESSAGE););p.add(l0);p.add(l1);.p.add(t1);p.add(l2