Java手写银行管理系统

傷城~ 2022-06-08 03:59 246阅读 0赞

**User.java**

package sdut.ligong.demo;
    
    import java.util.Calendar;
    import java.util.Date;
    
    public class User {
    
        static int count = 1;
    
        public String id; // 用户Id
    
        public String userName; // 用户姓名
    
        public String password; // 用户密码
    
        private double money; // 用户余额
    
        public String CreateAccountData; // 创建账户日期
    
    
    
        public static int getCount() {
            return count;
        }
    
        public static void setCount(int count) {
            User.count = count;
        }
    
        public String getId() {
            return id;
        }
    
        public void setId(String id) {
            this.id = id;
        }
    
        public String getUserName() {
            return userName;
        }
    
        public void setUserName(String userName) {
            this.userName = userName;
        }
    
        public String getPassword() {
            return password;
        }
    
        public void setPassword(String password) {
            this.password = password;
        }
    
        public double getMoney() {
            return money;
        }
    
        public void setMoney(double money) {
            this.money = money;
        }
    
        public String getCreateAccountData() {
            return CreateAccountData;
        }
    
        public void setCreateAccountData(String createAccountData) {
            CreateAccountData = createAccountData;
        }
    
        public User() throws Exception { // 无参构造方法
    
            // 初始化创建日期
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(new Date());
            //System.out.println("现在时间是：" + new Date());
            String year = String.valueOf(calendar.get(Calendar.YEAR));
            String month = String.valueOf(calendar.get(Calendar.MONTH) + 1);
            String day = String.valueOf(calendar.get(Calendar.DAY_OF_MONTH));
            String week = String
                    .valueOf(7 - (calendar.get(Calendar.DAY_OF_WEEK) - 1));
            CreateAccountData = year + "年" + month + "月" + day + "日，星期" + week;
            // 初始化编号
            String num = FileReadAndFileWrite.readCount();
            if(num==null){
                num="0";
            }
            this.id = num;
    
            // 初始化用户余额
            this.money = 0.0;
            // 初始化用户密码
            password = "123123";
        }
    
        public User(String userName) throws Exception {
            //初始化用户名 
            this.userName = userName;
            // 初始化创建日期
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(new Date());
            //System.out.println("现在时间是：" + new Date());
            String year = String.valueOf(calendar.get(Calendar.YEAR));
            String month = String.valueOf(calendar.get(Calendar.MONTH) + 1);
            String day = String.valueOf(calendar.get(Calendar.DAY_OF_MONTH));
            String week = String
                    .valueOf((calendar.get(Calendar.DAY_OF_WEEK) - 1));
            CreateAccountData = year + "年" + month + "月" + day + "日，星期" + week;
            // 初始化编号
            String num = FileReadAndFileWrite.readCount();
            if(num.equals(null)){
                num="0";
            }
            this.id = num;
            // 初始化用户余额
            this.money = 0.0;
            // 初始化用户密码
            password = "123123";
        }
    
    }

**MainActivity.java**

package sdut.ligong.demo;
    
    import java.io.File;
    import java.io.IOException;
    import java.util.Scanner;
    
    public class MainActivity {
        
    
        static Scanner input = new Scanner(System.in);
    
        static boolean mIsFirst = true;
    
        /**
         * 主界面
         * 
         * @return
         */
        private static void showMain() {
            if(mIsFirst){
                boolean going = verifyIdentidy();
                if(going){
                    mIsFirst = false;
                    System.out.println("欢迎进入银行管理系统!");
                    System.out.println("1.创建账户");
                    System.out.println("2.查询账户");
                    System.out.println("3.修改密码");
                    System.out.println("4.删除账户");
                    System.out.println("5.存钱");
                    System.out.println("6.取钱");
                    System.out.println("7.转账");
                    System.out.println("0.退出");
                    System.out.println("请选择你要进行的操作");
    
                }else{
                    // 登陆失败
                    System.out.println("用户名或密码错误!请5秒后重试");
                    for (int i = 0; i < 5; i++) {
                        System.out.println("倒计时" + (5 - i));
                        try { // 延迟一秒
                            Thread.sleep(500);
                        } catch (InterruptedException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }
                    mIsFirst = true;
                    showMain();
    
                }
    
            }else{
                System.out.println("欢迎进入银行管理系统!");
                System.out.println("请选择你要进行的操作");
                System.out.println("1.创建账户");
                System.out.println("2.查询账户");
                System.out.println("3.修改用户信息");
                System.out.println("4.删除账户");
                System.out.println("5.存钱");
                System.out.println("6.取钱");
                System.out.println("7.转账");
                System.out.println("0.退出");
    
    
            }
    
    
    
    
        }
    
    
    
        /**
         * 主程序入口
         * 
         * @param args
         * @throws Exception
         */
        public static void main(String[] args) throws Exception {
    
            boolean mIsCircle = true;
            do{
                int choose; 
                showMain();
                choose = input.nextInt();
                 switch (choose) {
                 case 1://创建账户
                CreateAccount();
                 break;
                 case 2:  //查询账户
                 searchOrModifyAccountOrDelete("查询");
                 break;
                 case 3:  //修改账户
                searchOrModifyAccountOrDelete("修改");
                 break;
                 case 4:  //删除账户
                searchOrModifyAccountOrDelete("删除");
                 break;
                 case 5:  //存钱
                saveMoney();
                 break;
                 case 6: //取钱
                takeMoney();
                 break;
                 case 7: //转钱
                transferMoney();
                 break;
                 case 0:
                     mIsCircle = false;
                 break;
                 default:
                     mIsCircle = false;
                 break;
                 }
            }while(mIsCircle);
    
    
        }
    
    
        private static void transferMoney() throws Exception {
            // TODO Auto-generated method stub
            saveAndtakeMoney("转出");
        }
    
        private static void takeMoney() throws Exception {
            saveAndtakeMoney("取钱");
        }
    
        private static void saveMoney() throws Exception {
            saveAndtakeMoney("存钱");
        }
    
        public static void saveAndtakeMoney(String key) throws Exception{
            System.out.println("请选择你要"+key+"的方式");
            System.out.println("1.按照用户编号进行"+key);
            System.out.println("2.按照用户名进行"+key);
            int choose = input.nextInt();
            if(choose==1){
                System.out.println("请输入你要"+key+"的用户编号");
                choose = input.nextInt();
                if(key.equals("取钱")){
                    FileReadAndFileWrite.takeNumUserOfMoney(choose);
                }else if(key.equals("存钱")){
                    FileReadAndFileWrite.saveNumUserOfMoney(choose);
                }else{
                    FileReadAndFileWrite.transferNumUserOfMoney(choose);
                }
    
            }else if(choose==2){
                System.out.println("请输入你要"+key+"的用户名");
                String userName = input.next();
                if(key.equals("取钱")){
                    FileReadAndFileWrite.takeNameUserOfMoney(userName);
                }else if(key.equals("存钱")){
                    FileReadAndFileWrite.saveNameUserOfMoney(userName);
                }else{
                    FileReadAndFileWrite.transferNameUserOfMoney(userName);
                }
    
            }
        }
    
        // 验证身份
        /**
         * 判断管理员身份
         * 
         * @return
         */
        public static boolean verifyIdentidy() {
            System.out.println("请输入管理员账户");
            String userName = input.next();
            if (userName.equals("admin")) {
                System.out.println("请继续输入管理员密码");
                String password = input.next();
                if (password.equals("123456")) {
                    return true;
                }
            }
            return false;
        }
    
        // 创建新账户
        /**
         * @return false 代表创建账户失败
         * @throws Exception
         */
        private static boolean CreateAccount() throws Exception {
    
            boolean mIsSucceed = false; // 判断创建账户是否成功 true-成功 false-失败
    
            System.out.println("你输入您要创建的账户名"); // 输入账户信息
    
            String userName = input.next();
    
            // 从数据库中调用数据,判断账户是否存在
            File userData = new File("C:\\dataBase\\userData.txt");
    
            if (!userData.exists()) { // 如果文件不存在,就创建文件
    
                userData.createNewFile();
                mIsSucceed = FileReadAndFileWrite.saveUserData(userName); // 在数据库中查询用户信息
    
            } else { // 如果文件存在,在文件中查询账户
    
                mIsSucceed = FileReadAndFileWrite.saveUserData(userName); // 在数据库中查询用户信息
            }
    
            if (mIsSucceed) {
    
                System.out.println("创建用户名成功!");
    
            } else {
    
                System.out.println("已存在用户名!");
    
            }
    
            return false;
        }
    
    
    
        /**
         * 查找 修改 删除 用户信息
         */
        private static void searchOrModifyAccountOrDelete(String key) throws Exception {
            System.out.println("请选择" + key + "用户信息的方式  1-编号查询 2-用户名查询");
            int choose = input.nextInt();
            switch (choose) {
            case 1:  //按照编号查找
                System.out.println("请输入要" + key + "的编号:");
                int number = input.nextInt();
                if (key.equals("查询")) {
                    searchForNumber(number);
                } else if(key.equals("修改")){
                    modifyForNumber(number);
                }else if(key.equals("删除")){
                    deleteForNumber(number);
                }
    
                break;
            case 2:
                System.out.println("请输入要" + key + "的用户名");
                String userName = input.next();
                if (key.equals("查询")) {
                    searchForUserName(userName);
                } else if(key.equals("修改")){
                    modifyForUserName(userName);
                }else if(key.equals("删除")){
                    deleteForUserName(userName);
                }
                break;
            default:
                System.out.println("输入错误!");
                break;
            }
    
        }
    /**
     * 按用户名删除用户信息
     * @param userName
     * @throws Exception 
     */
        private static void deleteForUserName(String userName) throws Exception {
            // TODO Auto-generated method stub
            FileReadAndFileWrite.deleteNameUser(userName);
        }
    /**
     * 按用户编号删除用户信息
     * @param number
     * @throws Exception 
     */
        private static void deleteForNumber(int number) throws Exception {
            // TODO Auto-generated method stub
            FileReadAndFileWrite.deleteNumUser(number);
        }
    
        /**
         * 按照用户名修改用户信息
         * 
         * @param userName
         * @throws Exception
         */
        private static void modifyForUserName(String userName) throws Exception {
            FileReadAndFileWrite.modifyNameUser(userName);
        }
    
        /**
         * 按照用户编号修改用户信息
         * 
         * @param number
         * @throws Exception
         */
        private static void modifyForNumber(int number) throws Exception {
            FileReadAndFileWrite.modifyNumUser(number);
        }
    
        /**
         * 按用户编号查找用户信息
         * 
         * @param userName
         * @throws Exception
         */
        private static void searchForUserName(String userName) throws Exception {
            FileReadAndFileWrite.findNameUser(userName);
        }
    
        /**
         * 按照用户名查找用户信息
         * 
         * @param number
         * @throws Exception
         */
        private static void searchForNumber(int number) throws Exception {
            FileReadAndFileWrite.findNumUser(number);
        }
    
    }

**FileReadAndFileWrite.java**

package sdut.ligong.demo;
    
    import java.io.BufferedReader;
    import java.io.BufferedWriter;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileOutputStream;
    import java.io.FileReader;
    import java.io.FileWriter;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.OutputStreamWriter;
    import java.io.PrintWriter;
    import java.net.HttpURLConnection;
    import java.net.URL;
    import java.util.Scanner;
    
    public class FileReadAndFileWrite {
        
    
        static Scanner input = new Scanner(System.in);
    
        public static boolean mIsTransfer = false; // 判断是否是转账状态 false-否
    
        static Double transferMoney = 0.0;  //转账的钱
    
        /**
         * 将用户名为userName 保存到数据库中 如果用户名在数据库中存在
         */
        public static boolean saveUserData(final String userName) throws Exception {
            // 读取文件
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData.txt")));
            // 写文件
            PrintWriter 
    
            pw = new PrintWriter("c:\\dataBase\\userData4.txt");
    
            // 判断文件是否存在
            boolean mIsExists = false; // 默认用户名不存在
            String line = null;
            while ((line = br.readLine()) != null) {
                if (userName.equals(line)) {
                    mIsExists = true;
                }
                pw.println(line);
                pw.flush();
            }
            if (mIsExists) {
                mIsExists = !mIsExists;
                return false; // 用户名已存在
            } else { // 将用户名写入文件中
                User u = new User(userName);
                pw.println(u.getId());
                pw.flush();
                pw.println(u.getUserName());
                pw.flush();
                pw.println(u.getPassword());
                pw.flush();
                pw.println(u.getMoney());
                pw.flush();
                pw.println(u.getCreateAccountData());
                pw.flush();
            }
            br.close();
            pw.close();
    
            // 将userData4中的内容写入到userData中
            BufferedReader br2 = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            line = null;
            while ((line = br2.readLine()) != null) {
                pw2.println(line);
                pw2.flush();
            }
            br2.close();
            pw2.close();
            br = new BufferedReader(new InputStreamReader(new FileInputStream(
                    "c:\\dataBase\\userData4.txt")));
            System.out.println("---------------------创建后的用户名----------------");
            int count = 0;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
    
                    System.out
                            .println("------------------------------------------");
                }
                count = count + 1;
    
                System.out.println(line);
    
            }
            System.out.println("---------------------显示结束-----------------------");
            System.out.println();
            System.out.println();
            br.close();
            // copyUserDataToUserData4();
            // copyUserData4ToUserData();
            return true;
        }
    
        /**
         * 读取用户的编号
         * 
         * @return
         * @throws Exception
         */
        public static String readCount() throws Exception {
            BufferedReader br2 = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData4.txt");
            int count = 0, count1 = 0;
            String line = null;
            while ((line = br2.readLine()) != null) {
                if (count % 5 == 0) {
                    count1++;
                    pw2.println(count1);
                    pw2.flush();
                } else {
                    pw2.println(line);
                    pw2.flush();
                }
                count++;
            }
            int C = count1 + 1;
            pw2.close();
            br2.close();
            copyUserData4ToUserData();
            copyUserDataToUserData4();
            return C + "";
    
        }
    
        /**
         * 根据编号 从数据库中找对应编号的用户信息
         * 
         * @param index
         * @throws Exception
         */
        public static void findNumUser(int index) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData.txt")));
            String line = null;
            int count = 0;
            boolean isFind = false;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals("" + index)) {
                        isFind = true;
                        System.out.println("账号编号:" + line);
                        for (int i = 0; i < 4; i++) {
                            line = br.readLine();
                            if (i == 0) {
                                System.out.println("用户名为:" + line);
                            } else if (i == 1) {
                                System.out.println("账户密码为:" + line);
                            } else if (i == 2) {
                                System.out.println("账户余额为:" + line + "元");
                            } else if (i == 3) {
                                System.out.println("创建账户日期为:" + line);
                            }
    
                        }
                        break;
                    }
                } else {
                    isFind = false;
                }
                count += 1;
    
            }
    
            br.close();
            if (!isFind) {
                System.out.println("未找到该用户");
                Thread.sleep(2000);
                System.out.println();
                System.out.println();
            }
        }
    
        /**
         * 根据姓名查找对应的用户信息
         * 
         * @param index
         * @throws Exception
         */
        public static void findNameUser(String index) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData.txt")));
            String line = null;
            String preline = null;
            boolean isChanged = false;
            int count = 4;
            boolean isFind = false;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals(index)) {
                        isFind = true;
                        isChanged = true;
                        break;
                    }
                } else {
                    // System.out.println("line ====== "+line+"  count==="+count);
                }
                count += 1;
                preline = line;
            }
            br.close();
            if (!isFind) {
                System.out.println("未找到该用户");
                Thread.sleep(2000);
                System.out.println();
                System.out.println();
            }
            if (isChanged) {
                // System.out.println("用户的编号为"+preline);
                findNumUser(Integer.parseInt(preline));
            }
        }
    
        /**
         * 按照用户名编号修改
         * 
         * @param index
         * @throws Exception
         */
        public static void modifyNumUser(int index) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            int count = 0;
            boolean isSucceed = false;
            boolean isChanged = true; // 判断是否改写数据库
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals("" + index)) {
                        System.out.println("是否要修改用户密码 1-是,0-否");
                        int choose = input.nextInt();
                        isSucceed = true;
                        if (choose == 1) {
                            line = br.readLine();
                            String line1 = br.readLine();
                            System.out.println("请输入用户初始密码");
                            String line3 = input.next();
                            if (line3.equals(line1)) {
                                System.out.println("验证成功!");
                                System.out.println("请输入要修改的密码");
                                String password = input.next();
                                System.out.println("用户编号:" + index);
                                pw2.println(index);
                                pw2.flush();
                                System.out.println("用户名:" + line);
                                pw2.println(line);
                                pw2.flush();
                                System.out.println("用户密码:" + password);
                                pw2.println(password);
                                pw2.flush();
                                line = br.readLine();
                                System.out.println("用户余额:" + line);
                                pw2.println(line);
                                pw2.flush();
                                line = br.readLine();
                                System.out.println("账户创建日期:" + line);
                                pw2.println(line);
                                pw2.flush();
                            } else {
                                System.out.println("密码错误!");
                                Thread.sleep(1000);
                                isChanged = false; 
                                break;
    
                            }
    
                        } else {
                            System.out.println("退出查询");
                            isChanged = false; // 不改变文件
                            break;
                        }
                    } else {
                        //System.out.println("匹配名称line=="+line+"count=="+count);
                        pw2.println(line);
                        pw2.flush();
                    }
                } else {
                    //System.out.println("5的倍数line=="+line+"count=="+count);
                    pw2.println(line);
                    pw2.flush();
                }
                count = count + 1;
    
            }
            if (!isSucceed) {
                System.out.println("未找到用户");
            }
            br.close();
            pw2.close();
            if (!isChanged) {
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
        }
    
        /**
         * 按照用户姓名修改密码
         * 
         * @param name
         * @throws Exception
         */
        public static void modifyNameUser(String name) throws Exception {
    
    
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData.txt")));
            String line = null;
            String preline = null;
            int count = 4;
            boolean isFind = false;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals(name)) {
                        isFind = true;
                        modifyNumUser(Integer.parseInt(preline));
                    }
    
                } else {
    
                }
                count += 1;
                preline = line;
            }
            br.close();
            if (!isFind) {
                System.out.println("未找到该用户");
                Thread.sleep(2000);
                System.out.println();
                System.out.println();
            }
    
    
    
        }
    
        public static void deleteNameUser(String name) throws Exception {
    
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData.txt")));
            String line = null;
            String preline = null;
            int count = 4;
            boolean isFind = false;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals(name)) {
                        isFind = true;
                        // System.out.println("用户编号:" + preline);
                        deleteNumUser(Integer.parseInt(preline));
                    }
    
                } else {
    
                }
                count += 1;
                preline = line;
            }
            br.close();
            if (!isFind) {
                System.out.println("未找到该用户");
                Thread.sleep(2000);
                System.out.println();
                System.out.println();
            }
    
        }
    
        /**
         * 按照用户名编号修改
         * 
         * @param index
         * @throws Exception
         */
        public static void deleteNumUser(int index) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            int count = 0;
            boolean isSucceed = false;
            boolean isChanged = false;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals("" + index)) {
                        System.out.println("是否要删除用户 1-是,0-否");
                        int choose = input.nextInt();
                        isSucceed = true;
                        if (choose == 1) {
                            line = br.readLine();
                            String line1 = br.readLine();
                            System.out.println("请输入用户初始密码");
                            String line3 = input.next();
                            if (line3.equals(line1)) {
                                System.out.println("删除成功!");
                                Thread.sleep(2000);
                                pw2.println("");
                                pw2.flush();
                                pw2.println("");
                                pw2.flush();
                                pw2.println("");
                                pw2.flush();
                                line = br.readLine();
                                pw2.println("");
                                pw2.flush();
                                line = br.readLine();
                            } else {
                                System.out.println("密码输入错误!");
                                isChanged = true; // 文件改变了
    
                            }
    
                        } else {
                            System.out.println("退出查询");
                        }
                    } else {
                        pw2.println(line);
                        pw2.flush();
                    }
                } else {
                    pw2.println(line);
                    pw2.flush();
                }
                count = count + 1;
    
            }
            if (!isSucceed) {
                System.out.println("未找到用户");
            }
            br.close();
            pw2.close();
            if (isChanged) {
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
        }
    
        /**
         * 将文件1复制到文件4
         * 
         * @throws Exception
         */
        public static void copyUserDataToUserData4() throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData.txt")));
            PrintWriter pw = new PrintWriter("c:\\dataBase\\userData4.txt");
            String line = null;
            while ((line = br.readLine()) != null) {
                if (!line.equals("")) {
                    pw.println(line);
                    pw.flush();
                }
            }
    
            br.close();
            pw.close();
        }
    
        /**
         * 将文件4复制到文件1
         * 
         * @throws Exception
         */
        public static void copyUserData4ToUserData() throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            while ((line = br.readLine()) != null) {
                if (!line.equals("")) {
                    pw.println(line);
                    pw.flush();
                }
            }
    
            br.close();
            pw.close();
        }
    
        public static void saveNumUserOfMoney(int index) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            int count = 0;
            Double fee = 0.0;
            String preline = null;
            boolean isChanged = true;
            boolean isSucceed = true;
            if (!mIsTransfer) {
                System.out.println("请输入要存入的金额");
                fee = input.nextDouble();
                if (fee <= 0) {
                    System.out.println("金额必须大于0");
                    fee = 0.0;
                }
            } else {
                System.out.println("进入转账状态!");
                fee = transferMoney;
            }
    
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals("" + index)) { // 找到该编号
                        String name = br.readLine(); // 获得用户名
                        String password = br.readLine(); // 获得密码
                        System.out.println("请输入账号密码");
                        String pass = input.next();
                        if (!pass.equals(password)) {
                            isChanged = false;
                            isSucceed = false;
                            System.out.println("密码输入错误!");
                            Thread.sleep(1200);
                            break;
                        } else {
                            System.out.println("存入金额:" + fee);
                            Double sum = Double.parseDouble(br.readLine());
                            sum += fee;
                            System.out.println("账户余额:" + sum);
                            pw2.println(index);
                            pw2.flush();
                            pw2.println(name);
                            pw2.flush();
                            pw2.println(password);
                            pw2.flush();
                            pw2.println(sum);
                            pw2.flush();
                            line = br.readLine();
                            System.out.println("创建账户日期:" + line);
                            pw2.println(line);
                            pw2.flush();
                        }
                    } else {
                        pw2.println(line);
                        pw2.flush();
                    }
                } else {
                    pw2.println(line);
                    pw2.flush();
                }
                count++;
                preline = line;
            }
            br.close();
            pw2.close();
            if (!isChanged) {
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
        }
    
        /**
         * 按照用户名进行存款
         * 
         * @param name
         * @throws Exception
         */
        public static void saveNameUserOfMoney(String name) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            String line = null;
            String preline = null;
            boolean isChanged = false;
            int count = 4;
            boolean isFind = false;
            Double fee;
    //      if (!mIsTransfer) {
        
    //          System.out.println("请输入要存入的金额");
    //          fee = input.nextDouble();
    //          if (fee <= 0) {
        
    //              System.out.println("金额必须大于0");
    //              fee = 0.0;
    //          }
    //      } else {
        
    //          fee = transferMoney;
    //      }
    
    
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals(name)) {
                        isFind = true;
                        isChanged = true;
    //                  System.out.println("name=="+line);
    //                  System.out.println("preline=="+preline);
                        saveNumUserOfMoney(Integer.parseInt(preline));
                        break;
                    }
                } else {
                    // System.out.println("line ====== "+line+"  count==="+count);
                }
                count += 1;
                preline = line;
            }
            br.close();
            if (!isFind) {
                System.out.println("未找到该用户");
                Thread.sleep(2000);
                System.out.println();
                System.out.println();
            }
            if (isChanged) {
                // System.out.println("用户的编号为"+preline);
                findNumUser(Integer.parseInt(preline));
            }
    
            br.close();
            if (!isChanged) {
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
        }
    
        /**
         * 按照用户名进行取款
         * 
         * @param name
         * @throws Exception
         */
        public static void takeNameUserOfMoney(String name) throws Exception {
            boolean isSucceed = false;
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            String preline = null;
            int count = 3;
            boolean isChanged = true;
            while ((line = br.readLine()) != null) {
                count = count + 1;
                if (count % 5 == 0) {
                    if (line.equals(name)) {
                        isSucceed = true;
    
                        int choose = 1;
                        if (choose == 1) {
                            String line3 = null;
                            line = br.readLine(); // 获取用户密码
                            if(mIsTransfer){
    
                                line3 = line;
                            }else{
                                System.out.println("请输入用户密码");
                                 line3 = input.next();
                            }
    
                            if (line3.equals(line)) { // 验证用户密码
                                Double fee = null;
                                if(mIsTransfer){
                                     fee = transferMoney;
                                }else{
                                    System.out.println("请输入要取出的金额");
                                     fee = input.nextDouble();
                                }
    
                                System.out.println("用户编号:" + preline);
                                System.out.println("用户名:" + name);
                                pw2.println(name);
                                pw2.flush();
                                System.out.println("用户密码:" + line3);
                                pw2.println(line3);
                                pw2.flush();
                                line = br.readLine();
                                Double sum = Double.parseDouble(line);
                                System.out.println("用户余额:" + sum);
                                if (fee <= sum) {
                                    fee = fee;
                                } else {
                                    System.out.println("取款失败");
                                    fee = 0.0;
                                    Thread.sleep(1500);
                                    isChanged = false;
                                    break;
                                }
                                System.out.println("要取出的金额为:" + fee);
                                sum -= fee;
                                System.out.println("取出之后的金额为:" + sum);
                                pw2.println(sum);
                                pw2.flush();
                                line = br.readLine();
                                System.out.println("账户创建日期:" + line);
                                pw2.println(line);
                                pw2.flush();
                                isSucceed = true;
                            } else {
                                System.out.println("用户密码错误");
                                line = br.readLine();
                                pw2.println(line);
                                pw2.flush();
                                isChanged = false;
                                break;
                            }
    
                        } else {
                            System.out.println("程序退出");
                            isChanged = false;
                            break;
                        }
                    } else {
                        pw2.println(line);
                        pw2.flush();
                    }
                } else {
                    pw2.println(line);
                    pw2.flush();
                }
    
                preline = line;
    
            }
            if (!isSucceed) {
                System.out.println("未找到用户");
            }
            br.close();
            pw2.close();
            if (!isChanged) {
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
        }
    
        /**
         * 按照用户编号进行取款
         * 
         * @param index
         * @throws Exception
         */
        public static void takeNumUserOfMoney(int index) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            int count = 0;
            boolean isSucceed = false;
            boolean isChanged = true;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals("" + index)) {
                        isSucceed = true;
                        int choose = 1;
                        if (choose == 1) {
                            line = br.readLine();
                            String line1 = br.readLine();
                            String line3 = null;
                            if(mIsTransfer){
                                 line3 = line1;
                            }else{
                                System.out.println("请输入用户初始密码");
                                 line3 = input.next();
                            }
    
                            if (line3.equals(line1)) {
                                System.out.println("验证成功!");
                                Double fee = 0.0;
                                if(mIsTransfer){
                                    fee = transferMoney;
                                }else{
                                    System.out.println("请输入要取出的金额");
                                     fee = input.nextDouble();
                                }
    
                                System.out.println("用户编号:" + index);
                                pw2.println(index);
                                pw2.flush();
                                System.out.println("用户名:" + line);
                                pw2.println(line);
                                pw2.flush();
                                System.out.println("用户密码:" + line3);
                                pw2.println(line3);
                                pw2.flush();
                                line = br.readLine();
                                Double sum = Double.parseDouble(line);
                                if (fee <= sum) {
                                    fee = fee;
                                } else {
                                    fee = 0.0;
                                    System.out.println("取款失败!");
                                    Thread.sleep(1500);
                                    isChanged = false;
                                    break;
                                }
                                System.out.println("用户余额取款前余额为" + sum + "元");
                                sum -= fee;
                                System.out
                                        .println("取款后" + fee + "元后余额为" + sum + "元");
                                pw2.println(sum);
                                pw2.flush();
                                line = br.readLine();
                                System.out.println("账户创建日期:" + line);
                                pw2.println(line);
                                pw2.flush();
                            } else {
                                System.out.println("密码输入错误!");
                                isChanged = false;
                                break;
    
                            }
    
                        } else {
                            System.out.println("退出查询");
                            isChanged = false;
                            break;
                        }
                    } else {
                        pw2.println(line);
                        pw2.flush();
                    }
                } else {
                    pw2.println(line);
                    pw2.flush();
                }
                count = count + 1;
    
            }
            if (!isSucceed) {
                System.out.println("未找到用户");
            }
            br.close();
            pw2.close();
            if(!isChanged){
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
        }
    
        public static void transferNameUserOfMoney(String name) throws Exception {
            mIsTransfer = true;
            boolean isSucceed = false;
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            String preline = null;
            int count = 3;
            boolean isChanged = true;
            while ((line = br.readLine()) != null) {
                count = count + 1;
                if (count % 5 == 0) {
                    if (line.equals(name)) {
                        isSucceed = true;
    
                        int choose = 1;
                        if (choose == 1) {
                            line = br.readLine(); // 获取用户密码
                            System.out.println("请输入用户密码");
                            String line3 = input.next();
                            if (line3.equals(line)) { // 验证用户密码
                                transferNumUserOfMoney(Integer.parseInt(preline));
    //                          
                            } else {
                                System.out.println("用户密码错误");
                                line = br.readLine();
                                pw2.println(line);
                                pw2.flush();
                                Thread.sleep(1500);
                                isChanged = false;
                                break;
                            }
    
                        } else {
                            System.out.println("程序退出");
                            Thread.sleep(1500);
                            isChanged = false;
                            break;
                        }
                    } else {
                        pw2.println(line);
                        pw2.flush();
                    }
                } else {
                    pw2.println(line);
                    pw2.flush();
                }
                preline = line;
    
            }
            if (!isSucceed) {
                System.out.println("未找到用户");
            }
            br.close();
            pw2.close();
            if(!isChanged){
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
            mIsTransfer = !mIsTransfer;
        }
    
        public static void transferNumUserOfMoney(int index) throws Exception {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    new FileInputStream("c:\\dataBase\\userData4.txt")));
            PrintWriter pw2 = new PrintWriter("c:\\dataBase\\userData.txt");
            String line = null;
            int count = 0;
            int cho = 0;
            boolean isSucceed = false;
            boolean isChanged = true;
            while ((line = br.readLine()) != null) {
                if (count % 5 == 0) {
                    if (line.equals("" + index)) {
                        isSucceed = true;
                        int choose = 1;
                        if (choose == 1) {
                            line = br.readLine();
                            String line1 = br.readLine();
                            System.out.println("请输入转出账户的初始密码");
                            String line3 = input.next();
                            if (line3.equals(line1)) {
                                System.out.println("验证成功!");
                                System.out.println("请输入要转出的金额");
                                Double fee = input.nextDouble();
                                transferMoney = fee;
                                pw2.println(index);
                                pw2.flush();
                                pw2.println(line);
                                pw2.flush();
                                pw2.println(line3);
                                pw2.flush();
                                line = br.readLine();
                                Double sum = Double.parseDouble(line);
                                if (fee <= sum) {
                                    fee = fee;
                                } else {
                                    fee = 0.0;
                                    System.out.println("取款失败!");
                                    Thread.sleep(1000);
                                    isChanged = false;
                                    break;
                                }
                                System.out.println("用户余额转出前余额为" + sum + "元");
                                sum -= fee;
                                System.out
                                        .println("转出" + fee + "元后余额为" + sum + "元");
                                pw2.println(sum);
                                pw2.flush();
                                line = br.readLine();
                                // System.out.println("账户创建日期:" + line);
                                pw2.println(line);
                                pw2.flush();
                                System.out.println("请选择要转出账户的方式");
                                System.out.println("1.按账户编号转入");
                                System.out.println("2.按账户名号转入");
                                 cho = input.nextInt();
                                mIsTransfer = true;
                                isSucceed = true;
                                break;
    
                            } else {
                                System.out.println("密码输入错误!");
                                Thread.sleep(1000);
                                isChanged = false;
                                break;
                            }
    
                        } else {
                            System.out.println("退出查询");
                            Thread.sleep(1000);
                            isChanged = false;
                            break;
                        }
                    } else {
                        pw2.println(line);
                        pw2.flush();
                    }
                } else {
                    pw2.println(line);
                    pw2.flush();
                }
                count = count + 1;
    
            }
            if (!isSucceed) {
                System.out.println("未找到用户");
            }
            br.close();
            pw2.close();
            if(!isChanged){
                copyUserData4ToUserData();
            }
            copyUserDataToUserData4();
            copyUserData4ToUserData();
            if (cho == 1) {
                System.out.println("请输入要转入的账户的编号");
                int index1 = input.nextInt();
                takeNumUserOfMoney(index1);
                saveNumUserOfMoney(index1);
    
            } else {
                System.out.println("请输入要转入的账户的名称");
                String name = input.next();
                takeNameUserOfMoney(name);
                saveNameUserOfMoney(name);
    
            }
            mIsTransfer = !mIsTransfer;
        }
    
    }