Java-银行管理系统源代码

Java小型银行管理系统源代码(图形界面)accounts.javapackageAccount；publicclassaccounts｛protectedintid;//银行账号protectedStringpassword;//用户密码protectedStringname;//用户型号protectedStringpersonId;//身份账号protectedintaccountType；//账号类型，0代表储蓄卡,1代表信用卡protecteddoublebalance;//protected是让他的子类能够直接用，不需要经过方式来赋值。protecteddoubleceiling；publicStringgetPassword(）{returnpassword;}cdg｛this。password=password;｝cg（｛returnname；｝publicvoidsetName(Stringname）{=name；｝publicStringgetPersonId（）{returnpersonId;｝publicvoidsetPersonId(StringpersonId){this。personId=personId;}publicintgetAccountType(){returnaccountType；}publicvoidsetAccountType(intaccountType){this.accountType=accountType；}publicdoublegetBalance(){returnbalance;}publicvoidsetBalance（doublebalance）{this.balance=balance；}publicintgetId（）{returnid；}cdt｛this.id=id；}ce｛returnceiling;｝cde｛this.ceiling=ceiling;}//无参数构造方式publicaccounts（){}//构造方式publicaccounts(Stringpassword，Stringname,StringpersonId,intaccountType,doublebalance，doubleceiling）{（；this。password=password；=name;this.personId=personId;this。accountType=accountType;this。balance=balance;this。ceiling=ceiling;}//存款publicvoiddeposit(doublemoney）{balance+=money;}//取款publicvoidwithdraw(doublemoney）{if(accountType==1){（〈｛System。out。println（”对不起，已超出您的信用额度！"）;｝else{}}else{

balance—=money；（｛System.out.println(”对不起，账户余额不足！"）;}else｛balance-=money；}}}}DBoper。javapackageDB;importjava.sql。＊；importjava。util。ArrayList；importAccount.accounts；publicclassDBoper{privateConnectionconn=null;privateStatementst=null;privatePreparedStatementpstmt=null;privateResultSetrs=null；privateArrayList<accounts〉result;//连接数据库cn（｛try{Class。forName(”com.mysql.jdbc。Driver"）;conn=DriverManager.getConnection("jdbc:mysql ： //localhost ：3306/bankmanager?useUnicode=true&characterEncoding=utf8”，”root","xuewei”）;}catch（Exceptione）{System.out.println（”数据库连接失败”);}returnconn；｝//修改删除用户数据publicbooleanaccountDataUpdate（Stringsql){conn=getConnection(）;try｛pstmt=conn。prepareStatement(sql);pstmt.executeUpdate（）;//System。out.println（"数据更新成功");conn.close(）;returntrue;｝catch(SQLExceptione)｛e.printStackTrace（)；。;returnfalse；}}//id来修改记录publicbooleandataupdateid(accountsuser,intid）｛conn=getConnection();try｛String sql = ”update account set username= ？ ，userpwd=?,personId=？,accountType=?，balance=?,ceiling=？whereid="+id;pstmt=conn.prepareStatement（sql);pstmt。setString（1,user.getName());pstmt。setString（2，user.getPassword（）);pstmt。setString（3，user.getPersonId(）);pstmt。setInt（4,user。getAccountType());pstmt。setDouble(5，user。getBalance（）);,（；pstmt.executeUpdate（）;。（；returntrue；}catch(SQLExceptione）{e.printStackTrace（)；System。out。println（”操作失败”)；returnfalse；}}//插入用户数据cnaccountDataInser（accountsaccoun｛conn=getConnection（)；try｛pstmt=conn.prepareStatement(”insert into account （username,userpwd，personId，accountType，balance,ceiling）values（？，？，?,?,?,？)");pstmt.setString(1,account.getName()）;pstmt.setString（2，account.getPassword()）;pstmt.setString(3，account.getPersonId(）;pstmt.setInt(4,account。getAccountType());pstmt.setDouble(5，account.getBalance（）)；。，account.getCeilin（；pstmt.executeUpdate（);System.out.println("新用户数据插入成功”);conn。close()；returntrue；｝catch(SQLExceptione）{e.printStackTrace（);System。out。println（”插入失败”);returnfalse;｝}//查询数据publicResultSetdataquery(Stringsql）｛conn=getConnection（)；try｛t=；rs=pstmt。executeQuery（）;}catch(SQLExceptione）{e。；System。out.println（"检索失败")；｝returnrs；}publicResultSettestlist（）｛try｛Stringsql=”select＊fromaccountwhereid=1001”；pstmt=conn.prepareStatement(sql)；System。out。println（sql);rs=pstmt。executeQuery（）;}catch(SQLExceptione){（；System。out。println(”检索失败")；}returnrs;｝publicArrayList〈accounts>testt(intid)｛ArrayList<accounts>list=newArrayList<accounts（）;conn=getConnection（);try｛Stringsql=”select＊fromaccountwhereid=”+id；t=。；s=；while(rs。next(）){accountsr=waccounts；user.setName（rs.getString（"username")）;user.setPassword(rs。getString（”userpwd"));user.setPersonId（rs.getString（”personId”))；user.setAccountType（rs.getInt（"accountType"）)；user.setBalance(rs。getDouble("balance”)）;user.setCeiling（rs。getDouble（"ceiling”)）;list。add(user）;}}catch（SQLExceptione){e。printStackTrace（）;System.out。println(”检索失败")；}returnlist；｝//依据卡号和密码验证用户是否存在publicbooleanverify（intid，Stringpassword){conn=getConnection（）;try｛pstmt=conn.prepareStatement（"select * from account where id=？anduserpwd=？"）;pstmt。setInt（1,id）;pstmt.setString(2，password）;rs=pstmt.executeQuery（)；（（｛returntrue;｝else{returnfalse；｝｝catch(SQLExceptione)｛e。printStackTrace()；returnfalse；}}/＊**登录验证*/publicaccountsverifyAccount（intid，Stringpassword)｛booleanflag=verify（id,password)；if(flag)｛accountsaccount=queryByIDandPasswor（，；returnaccount；}else{｝}

System。out.println（”用户不存在!")；returnnull；//依据卡号和密码查询信息publicaccountsqueryByIDandPassword(intid，Stringpassword)｛conn=getConnection（)；try{

pstmt=conn。prepareStatement（"select＊fromaccountwhereid=?anduserpwd=?”）;pstmt。setInt(1，id);pstmt.setString(2,password）;rs=pstmt。executeQuery（）;accountsaccount=newwhile（rs。next(）{accoun。（。；account。setName(rs.getString(”username"）；accoun。（；account.setPersonId（rs.getString（"personId"）;account.setAccountType(rs.getInt(”accountType”）；account。setBalance（rs.getDouble（”balance”));accoun。；｝returnaccount;｝n｛e。；returnnull;｝｝//依据卡号查询信息publicaccountsqueryByID（intid){；try{pstmt=conn。prepareStatement(”select*fromaccountwhereid=?”）;pstmt。setInt（1id)；rs=pstmt。executeQuery（)；accountsaccount=newaccounts（)；（｛account.setId(rs。getInt（"id"));account.setName(rs。getString("username”)）;account.setPassword（rs.getString（”userpwd”）);account.setPersonId（rs。getString(”personId"))；account。setAccountType（rs.getInt("accountType"）;account.setBalance（rs。getDouble（"balance”）;account.setCeiling(rs.getDouble（"ceiling"）);}returnaccount;}catch(SQLExceptione){e。printStackTrace（）;returnnull;｝｝publicstaticvoidmain(String[]args)｛//TODOAuto-generatedmethodstubDBoperop=newDBoper（）;ArrayList〈accounts>list=op。testt（1001);for（inti=0;i〈list。size（);i++){accountsuser=newaccounts()；user=list.get（i);System.out.println(user。getName())；System。out。println(user.getPassword(）);System.out。println(user.getPersonId(）);System.out。println(user.getAccountType（));。（；System。out。println（user.getCeiling（));}｝}//图像界面文件夹DN_SYSTEMDefault。java //主界面packageDN_SYSTEM；importjava。awt。Color；importjava。awt。Container；importjava.awt.event。ActionEvent;importjava.awt。event.ActionListener;importjavax。swing。JButton;importjavax。swing.JFrame；importjavax.swing。JLabel;importjavax。swing.JOptionPane;importjavax。swing.JPanel；importjavax。swing.WindowConstants;importAccount。accounts;importDB.DBoper；publicclassDefaultextendsJFrameimplementsActionListener｛accountsaccount=DN_ATM.client；DBoperdb=newDBoper（);privateJFramejf;privateJButtonbtn0,btn1，btn2，btn3，btn4，btn5；privateContainerc;publicvoiddefaltDemo（）{//添加主界面卡片//DN_ATM。id；intid=DN_ATM.id；//account=db。queryByID(id);jf=newJFrame（"DEFAULT”);c=jf。getContentPane（)；c。setLayout(null）;c。setBackground（newColor(119，119,253)）;ll=w（用达能银行M系统"；lblwel。setBounds(20,15,350,30）;c.add（lblwel）;JLabellblwel1=newJLabel(”请选择您需要的交易类型”);0，，,；c.add（lblwel1)；1=w（；btn1.addActionListener(this)；。，,,；c.add(btn1);w;；，，,；c。add（btn2);btn3=newJButton（"查询余额”)；btn3。addActionListener(this）;btn3.setBounds（70,150,100,30);c.add(btn3)；btn4=newJButton（"转账服务")；。addActionListener(thi；btn4。setBounds(210,150,100，30)；c.add（btn4）;btn5=newJButton（"注销账户")；。addActionListene（；,，0，；c.add（btn5);0=w（”;btn0.addActionListener(this)；btn0.setBounds(210,210，100,30);。ad；jf.setVisible(true）;jf.setResizable(false)；jf.setSize(400,300)；（；}//事件处理@OverridepublicvoidactionPerformed(ActionEvente){//取款服务。（（｛OutMoneyoutmoney=newOutMoney();；；｝//存款服务（（）｛InMoneyinmoney=newInMoney();inmoney.InMoney()；（；｝//查询余额if(e.getSource(）.equals（btn3))｛GetBalancegetbalance=newGetBalance()；getbalance.getBalance（);f。；}//转账服务if（e.getSource（）.equals（btn4))｛sws；tranfer.transferAccounts（）;（；｝//注销账户if(e.getSource（）.equals(btn5)){Stringsql=”deletefromaccountwhereid="+account。getId(）;booleanflag=db.accountDataUpdate（sql);if(flag）{（}else｛。（，;｝}if（e。getSource（).equals（btn0）｛。0；}}publicstaticvoidmain（String[］args）｛//TODOAuto—generatedmethodstubDefaultdefaults=newDefault（);defaults。defaltDemo()；｝｝DN_ATM。java //功能界面packageDN_SYSTEM;importjava.awt.CardLayout;importjava.awt。Color;importjava.awt.Container；importjava。awt。event。ActionEvent;importjava。awt.event.ActionListener；importjavax.swing。AbstractButton；importjavax.swing.JButton；importjavax.swing。JFrame；importjavax.swing.JLabel;importjavax。swing。JOptionPane;importjavax.swing.JPanel;importjavax。swing。JPasswordField；importjavax。swing。JTextField;importDB。DBoper;importAccount。accounts；publicclassDN_ATMextendsJFrameimplementsActionListener｛privateJLabellbljixu;privateJButtonbtngetcard;privateJButtonbtncard,btn010,btn_addAccount，btnsure，btnback；privateJTextFieldtxt1;privateJPasswordFieldtxt2;privateContainercontainer;privateCardLayoutLayout;privateJLabellblwrong;privateJPanelpanelfirst，panelmain;publicstaticintid;staticaccountsclient=null；publicDN_ATM（){super(”达能银行"）;this。setSize(435,350）;this.setLocation（500，250);this。setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE）;//设置不行转变窗口大小this。setResizable(false);｝//布局cd｛//用卡片布局Layout=newCardLayout（）;r=；container。setLayout(Layout）;//添加第一张卡片panelfirst=newJPanel(null);//设置卡片的背景颜色panelfirst。setBackground（newColor（119,119,253)）;lbljixu=newJLabel（”请放入磁卡,然后继续操作”);//Panel中的位置lbljixu。setBounds(140，90，350,30）;//Labelpanelfirst。add(lbljixu);//为第一张卡片添加一个按钮d=w;btncard.setBounds（310,180，80,30);//为按钮注册事件监听器btncard。addActionListener(this);//开头时设置按钮不行按btncard。setEnabled(false）;。ad；//为第一张卡片添加一个按钮d=w;；btngetcard。setBounds（310，220,80，30)；btngetcard。addActionListener（this);panelfirst.add(btngetcard）;//添加登录输入卡片panelmain=newJPanel(null)；panelmain.setBackground(newColor（119，119，253）)；//添加登录输入卡号lr=w（:）;panelmain。add（lblnumber)；lblnumber。setBounds(30,30,150，30)；//设置文本框为密码型txt1=newJTextField（12);//文本框不行选中//txt1。enable（false）;panelmain.add（txt1）;txt1。setBounds(170,30,200，30）;JLabellblpwd=newJLabel("请输入您的银行卡密码：");panelmain.add（lblpwd);lblpwd。setBounds（30,80，150,30）;//设置文本框为密码型2=w；//文本框不行选中//txt2.enable(false）;panelmain。add(txt2）;//文本框的输入内容用＊显示txt2.setEchoChar（’＊'）;txt2.setBounds（170,80,200，30）;//添加选择按钮btnsure=newJButton（”确定”);btnsure。addActionListener(this);panelmain.add（btnsure）;btnsure.setBounds(70,160，80，30）;//添加重输按钮btn010=newJButton("重输”)；btn010。addActionListener（this）;；；k=w；btnback.addActionListener（this）;panelmain.add（btnback）;btnback.setBounds（280,160,80,30)；//开户t=w（”开户；btn_addAccount。setBounds(70，220,80,30）;btn_addAccount.addActionListener（this);panelmain.add(btn_addAccount）;g=w请着重保护好您的密码panelmain。add（lblwrong）;lblwrong.setBounds(180，110，200,30）;container.add（panelmain，"main"）;}//事件处理@SuppressWarnings（"deprecation”)@OverridepublicvoidactionPerformed（ActionEvente）{DBoperdb=newDBoper(）;if（e。getSource(）.equals(btn_addAccount))｛OpenAccountopen=newOpenAccount（）;open。adduser（）;}//磁卡插入后，验证银行登录卡号与密码（（（）{client=db。verifyAccount(Integer。parseInt（txt1.getText（))，txt2.getText());if（client！=null）{Defaultdefa=newDefault（）;defa.defaltDemo(）;this.dispose();txt1。setText（"");。；}else｛。；txt2.setText（"")；}}//重置输入卡号和密码if（e.getSource(）==btn010）｛txt1。setText(”"）;txt2.setText("");lblwrong。setText（"请着重保护好您的密码！")；｝//退出if（e.getSource()。equals(btnback）)｛System.exit（0）;｝｝publicstaticvoidmain（String[]args）｛//TODOAuto—generatedmethodstubDN_ATMATM=newDN_ATM(）;ATM。setLayout()；ATM.setVisible(true);｝}GetBalance。java //查询余额packageDN_SYSTEM;importjava.awt。CardLayout；importjava。awt.Color；importjava.awt。Container；importjava.awt。event。ActionEvent；importjava。awt.event.ActionListener；importjavax.swing.JButton;importjavax。swing。JFrame；importjavax。swing.JLabel;importjavax.swing。JPanel；importjavax。swing.WindowConstants;importAccount。accounts;importDB.DBoper；publicclassGetBalanceextendsJFrameimplementsActionListener{privateJFramejf；privateContainerc；privateJLabellblremain1,lblremain;privateJButtonbtnremain，btnremain1；accountsaccount=newaccount（；DBoperdb=newDBoper(）;privateintid=DN_ATM.id;//添加查询余额界面卡片publicvoidgetBalance（){account=db.queryByID（id);jf=newJFrame（”FINDDALANCE")；（；c。setLayout(null);jf.setResizable（false）;c.setBackground(newColor（119,119，253）)；lblremain1=newJLabel（”敬重的达能用户您好！")；lblremain1.setBounds（90,70，350,30)；；n=w（”；lblremain。setBounds（90,110,350，30)；c.add(lblremain)；btnremain=newJButton("继续操作")；btnremain.setBounds（95，150，90，30);；c。add(btnremain）;btnremain1=newJButton（"退出操作");btnremain1.setBounds(200,150,90，30);btnremain1.addActionListener(this）;c.add(btnremain1);f。；。；jf.setDefaultCloseOperation（WindowConstants。EXIT_ON_CLOSE);｝＠OverridecdactionPerformed(ActionEvent｛//查询余额if(e.getSource(）==btnremain）｛（;

（+”}

?;if(e。getSource（）==btnremain1）{tw（；defa.defaltDemo（)；jf。dispose(）;｝｝publicstaticvoidmain(String［］args）{//TODOAuto—generatedmethodstubGetBalancebalance=newGetBalance（）;（；｝｝InMoney.java //存款packageDN_SYSTEM；importjava.awt。CardLayout;importjava。awt。Color;importjava。awt.Container;importjava.awt.event。ActionEvent;importjava.awt。event。ActionListener；importjavax.swing。JButton；importjavax.swing.JFrame;importjavax。swing。JLabel;importjavax.swing。JOptionPane；importjavax.swing。JTextField；importjavax。swing.WindowConstants；importAccount.accounts；importDB。DBoper;publicclassInMoneyextendsJFrameimplementsActionListener｛privateJLabellblsave，lblsave1;privateJButtonbtnsave,btnsave2；privateJTextFieldtxt2；privatedoublesavemoney;privatedoublelastmoney；privatebooleanflag；privateJFramejf；privateContainerc；accountsaccount=newaccounts（）;DBoperdb=newDBoper（);privateintid=DN_ATM.id;publicvoidInMoney(){account=db。queryByID（id)；wN；c=jf.getContentPane（);c.setLayout（null);；//添加存款显示界面卡片c.setBackground(newColor（119,119，253）)；lblsave=newJLabel（”请在存款口处放入存款")；lblsave。setBounds（60,30，350，30);c.add（lblsave)；lblsave1=newJLabel("请着重:100100元的整数倍存款")；lblsave1.setBounds(90,110,350，30）;c.add(lblsave1);txt2=newJTextField（12）;c。add(txt2）;txt2.setBounds(95，80，200，30）;btnsave=newJButton("放入存款完毕")；btnsave。setBounds(90,160,120,30）;。addActionListener(thi；c.add(btnsave);btnsave2=newJButton(”返回"）;btnsave2.setBounds（240，160,60,30）;btnsave2.addActionListener(this);c.add（btnsave2)；；jf。setSize(400，300）;jf。setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);}@OverridecdactionPerformed(ActionEvent｛if（e。getSource(）==btnsave){savemoney=Double.parseDouble(txt2。getText（))；lastmoney=account。getBalance();lastmoney+=savemoney；Stringsql=”updateaccountsetbalance=”+lastmoney+”whereid="+id;flag=db.accountDataUpdate（sql）;if（flag){，;}else{｝｝

txt2.setText(”")；Defaultdefa=newDefault（）;defa。defaltDemo(）;jf.dispose（）;（,if（e。getSource(）==btnsave2）{tw（；defa.defaltDemo（);jf。dispose（);}}publicstaticvoidmain（String［］args）{//TODOAuto—generatedmethodstubInMoneyinmoney=newInMoney（）;inmoney.InMoney（)；｝｝OpenAccount。java //开户packageDN_SYSTEM；importjava.awt.Component；importjava.awt。Container;importjava.awt.event.ActionEvent；importjava.awt.event。ActionListener；importjavax。swing.ButtonGroup;importjavax.swing。JButton；importjavax。swing.JFrame；importjavax。swing.JLabel；importjavax。swing.JOptionPane;importjavax。swing.JPasswordField;importjavax。swing.JRadioButton；importjavax.swing.JTextField；importjavax.swing。WindowConstants;importDB。DBoper;importAccount.accounts;publicclassOpenAccountextendsJFrameimplementsActionListener{privateJFramejf;privateContainerc；privateJTextFieldtxtname,txt_personId；privateJPasswordFieldtxtpwd,txtpwd1;privateJRadioButtonrbt1;privateJRadioButtonrbt2；StringaccountType;//开户，增加新用户cdjf=newJFrame（”OpenAccount")；（；c。setLayout(null）;jf。setResizable（false)；lwlbname。setBounds（100,40，80，20)；txtname=newJTextField（)；txtname。setBounds（160，40,130,20）;c.add（lbname）;c.add(txtname);JLabellbpwd=newJLabel("密码：")；lbpwd.setBounds(110，65，80，20);w；txtpwd.setBounds(160,65，130，20)；txtpwd。setEchoChar(’＊'）;c.add（lbpwd）;；JLabellbpwd1=newJLabel("确认密码:”);lbpwd1.setBounds(86，90，80，20)；txtpwd1=newJPasswordField（)；，，,0；txtpwd1。setEchoChar（’*’）;；c。add（txtpwd1)；lw（）;lbpersonId。setBounds(86,115,80，20);d=w（；txt_personId.setBounds（160,115，130，20);（；；lw（”lbtype.setBounds(86，120,80，60);rbt1=newJRadioButton("信用卡”)；。，，，；rbt2=newJRadioButton("储蓄卡”)；rbt2。setBounds（225,135，70,30）;ButtonGroupgroup=newButtonGroup(）;group.add(rbt2)；group。add（rbt1)；c。add（lbtype);c.add（rbt2)；。ad；nw（”;btnsubmit.setBounds（100，190，80,20)；JButtonbtnreset=newJButton（”重置"）;，,,；（；c。add(btnreset）;btnsubmit.addActionListener(this）;btnreset。addActionListener(this）;。；0；jf。setDefaultCloseOperation（WindowConstants.EXIT_ON_CLOSE)；｝publicstaticvoidmain（String［］args）{//TODOAuto—generatedmethodstubOpenAccountopenA=newOpenAccount(）;。adduser；｝@OverridepublicvoidactionPerformed（ActionEvente)｛accountsaccount=newaccounts（）;accoun。。；if(txtpwd。getText（）.equals（txtpwd1。getText(）))｛account.setPassword(txtpwd.getTex（；｝else｛；｝accoun。。（;if(rbt1.isSelected())accountType=”1”；if（rbt2。isSelected())accountType=”0";account。setAccountType(Integer.parseInt（accountType）);account。setBalance(0）;if（accountType。equals（”1”）{accoun。；｝else｛account。setCeiling（0);}rw；。accountDataInsert(account｛。，jf。dispose（）;//关闭当前登录窗体return;}else｛（!；return；｝｝｝OutMoney。java //取款packageDN_SYSTEM;importjava。awt.CardLayout;importjava.awt。Color；importjava。awt.Container;importjavax.swing。JButton；importjavax。swing.JFrame；importjavax。swing.JLabel；importjavax。swing.JOptionPane；importjavax。swing。JPanel;importjavax.swing.JTextField；importjavax。swing。WindowConstants；importAccount.accounts;importDB.DBoper；importjava.awt。event.ActionEvent;importjava。awt。event。ActionListener;publicclassOutMoneyextendsJFrameimplementsActionListener{privateJFramejf；privateJButtonbtn100，btn200，btn300，btn500,btn1000；privateJButtonbtn001,btn002,btn003,btn004,btn005,btn006,btn007，btn008，btn009，btn000;privateJButtonbtnsure1,btn0010，btnback2；privateJTextFieldtxt2；privateContainerc；privateJLabellblqukuan;privateintmoney；privatedoublelastmoney；accountsaccount=newaccounts（）;rw（；privateintid=DN_ATM。id;publicvoidoutMoney（）{account=db.queryByID（id）;jf=newJFrame("OUTMONEY");c=jf.getContentPane(）;c。setLayout（null)；jf.setResizable（false)；//添加取款页面卡片//panel4=newJPanel(null)；c。setBackground(newColor（119，119，253）；n=w（”:；；lblqukuan。setBounds（115，20,150，30);lblqukuan=newJLabel("提示:100100元的整数倍"）;c。add(lblqukuan）;lblqukuan。setBounds（115，50,300,30）;2=w；。；c。add(txt2);txt2.setBounds(115，90，200,30)；btn100=newJButton(”100")；c。add(btn100）;btn100。addActionListener(this)；btn100.setBounds(45,190，60，30);0=w；。ad；；btn200。setBounds（115,190，60,30)；btn300=newJButton("300”)；c.add（btn300）;btn300。addActionListener(this);。（,，,0；btn500=newJButton（"500”);btn500=newJButton（”500"）;c.add（btn500）;。addActionListene（；btn500.setBounds（255,190,60，30)；0=w；c。add（btn1000);；btn1000。setBounds（325，190，65，30);btn001=newJButton("1"）;c.add(btn001);btn001。addActionListener(this）;btn001。setBounds（45，230,60，30);btn002=newJButton(”2"）;c。add（btn002）;btn002.addActionListener（this）;btn002.setBounds（115，230，60，30）;3=w（；c.add（btn003）;。addActionListene（；btn003.setBounds(185，230，60,30);4=w（；c.add(btn004);；btn004.setBounds(255，230,60,30）;5=w（；c.add(btn005);；。（，,，0；6=w（；c。add（btn006）;btn006.addActionListener（this)；btn006.setBounds（45,270,60，30）;btn007=newJButton("7")；c.add(btn007)；btn007.addActionListener（this）;btn007.setBounds(115,270,60，30）;btn008=newJButton(”8”);c。add(btn008);btn008。addActionListener（this)；btn008。setBounds(185,270,60,30)；9=w（；（；。addActionListene（；btn009。setBounds（255,270,60,30)；btn000=newJButton（”0");c。add（btn000);btn000.addActionListener（this)；btn000。setBounds(325,270，65，30)；btnsure1=newJButton（"确定”)；。add(btnsure；btnsure1。addActionListener(this);btnsure1。setBounds(70，140，80,30);btn0010=newJButton（”重输"）;c。add(btn0010);。addActionListener(thi；btn0010。setBounds（175,140，80,30);btnback2=newJButton(”返回");（；。addActionListener(thi；btnback2。setBounds(280,140，80，30);jf。setVisible（true）;jf。setSize（460，350）;jf.setDefaultCloseOperation（WindowConstants.EXIT_ON_CLOSE);｝＠OverridecdactionPerforme（t｛if(e.getSource(）==btn000){Stringa=txt2.getText（）;if（a.equals（"”))｛｝else{}}

txt2.setText(”");。；if（e.getSource()==btn001){txt2.setText(txt2.getText（)+"1")；｝if（e.getSource()==btn002){。。；｝if（e。getSource(）==btn003）{ txt2.setText（txt2。getText（)+”3"); }if(e.getSource()==btn004){ txt2。setText（txt2.getText(）+”4”）; ｝if（e.getSource（)==btn005)｛ txt2。setText(txt2。getText()+"5"）; ｝if（e。getSource()==btn006）{ txt2.setText（txt2.getText（)+”6”）; ｝if（e.getSource（)==btn007）{ txt2.setText(txt2.getText（）+”7”)； ｝if（e.getSource(）==btn008)｛ txt2。setText(txt2。getText()+”8"); ｝if（e.getSource(）==btn009）{ txt2.setText(txt2.getText（）+"9"）; ｝if（e。getSource()==btn100）{ txt2.setText（"100”）; }if（e。getSource()==btn200）{ 。（； }if(e。getSource（)==btn300）｛ （； ｝if（e。getSource（）==btn500){ txt2。setText(”500"）; }if（e。getSource(）==btn1000）｛ txt2。setText（”1000")； }//返回if(e.getSource()==btnback2）{Defaultdefa=newDefault();defa。defaltDemo（）;jf.dispose()；}//重输if（e.getSource（)==btn0010）{txt2。setText（””);}//取款确定if（e。getSource()==btnsure1）{if（！txt2。getText(）.equals（"”)){money=newInteger(txt2.getText()）;}txt2。setText("");lastmoney=account。getBalance（)；if((money%100）==0&＆money〈=lastmoney＆&money！=0){try｛Thread。sleep(1000）;}catch（InterruptedExceptione1){e1.printStackTrace(）;}lastmoney=lastmoney-money；Stringsql="updateaccountsetbalance=”+lastmoney+"whereid="+id;booleanflag=db.accountDataUpdate(sql）;if（flag){。，；Defaultdefa=newDefault()；defa。defaltDemo（)；jf.dispose();}else{｝}else{

（）;JOptio