张迪的课程设计报告(5)

Id += index; return Id; }

public void choose(Long id, String str) { Scanner scanner = new Scanner(System.in); System.out

.println(\、存钱 2、取钱 3、转账 4、贷款 5、还款 6、设置透支额度\

int i = scanner.nextInt(); while (i > 6 || i < 1) {

System.out.println(\重新选择\ i = scanner.nextInt(); }

switch (i) { case 1:

deposit(id, 0); break; case 2:

withdraw(id, str, 0); break; case 3:

transfer(id, str, null, 0); break; case 4:

requestLoan(id, 0); break; case 5:

payLoan(id, 0); break; case 6:

updateCeiling(id, str, 0); break; } }

// 用户注册

public Account register(Long id, String password, String repassword, String name, String personID, String email, int type) { File file = creatFile(); boolean flg = false; // 项目需求规定账户类型：0 – 储蓄账户 1 – 信用账户 2 – 可贷款储蓄账户 3– 可贷款信用账户 id = getID();

System.out.println(id);

Scanner scanner = new Scanner(System.in); System.out.println(\ password = scanner.next();

System.out.println(\ repassword = scanner.next();

while (password.contentEquals(repassword) == false) { System.out.println(\确认密码错误\ repassword = scanner.next(); }

System.out.println(\ name = scanner.next();

System.out.println(\ personID = scanner.next();

System.out.println(\ email = scanner.next();

System.out.println(\选择帐号类型 ：0 – 储蓄账户 1 – 信用账户 2 – 可贷款储蓄账户 3– 可贷款信用账户\ type = scanner.nextInt(); switch (type) { case 0:

setAcc.add(new SavingAccount(id, password, name, personID, email, 0.0));

String str = setAcc.toString(); writeFile(file, str); flg = true; break; case 1:

setAcc.add(new CreditAccount(id, password, name, personID, email, 0.0, 0.0));

str = setAcc.toString(); writeFile(file, str); flg = true; break; case 2:

setAcc.add(new LoanSavingAccount(id, password, name, personID, email, 0.0, 0l)); str = setAcc.toString(); writeFile(file, str); flg = true; break; case 3:

setAcc.add(new LoanCreditAccount(id, password, name, personID, email, 0.0, 0.0, 0l));

}

str = setAcc.toString(); writeFile(file, str); flg = true; break; }

if (flg == true) { index++;

System.out.println(\注册成功\} else {

System.out.println(\注册失败\}

System.out.println(\、用户注册 2、用户登录\int i = scanner.nextInt(); while (i != 1 && i != 2) {

System.out.println(\重新选择\ i = scanner.nextInt(); }

switch (i) { case 1:

register(null, null, null, null, null, null, 0); // 用户注册 break; case 2:

login(null, null); // 用户登录 break; }

return null;

// 用户登录

public Account login(Long id, String password) { Scanner scanner = new Scanner(System.in); System.out.println(\ id = scanner.nextLong();

System.out.println(\ password = scanner.next(); boolean flg = false;

for (Account a : setAcc) {

if (id.equals(a.getId()) && password.equals(a.getPassword())) { flg = true; break; } }

if (flg == true) {

System.out.println(\登录成功\

}

choose(id, password); } else {

System.out.println(\登录失败\

System.out.println(\、用户注册 2、用户登录\ int i = scanner.nextInt(); while (i != 1 && i != 2) {

System.out.println(\重新选择\ i = scanner.nextInt(); }

switch (i) { case 1:

register(null, null, null, null, null, null, 0); // 用户注册 break; case 2:

login(null, null); // 用户登录 break; } }

return null;

// 用户存款

private Account deposit(Long id, double money) { String str = null;

Scanner scanner = new Scanner(System.in);

// System.out.println(\System.out.println(\money = scanner.nextDouble(); boolean flg = false;

for (Account b : setAcc) {

if (id.equals(b.getId())) { b.deposit(money);

str = setAcc.toString(); File file = creatFile(); writeFile(file, str); str = b.getPassword(); flg = true; break; } }

if (flg == true) {

System.out.println(\交易成功\

}

} else {

System.out.println(\交易失败\}

choose(id, str); return null;

// 用户取款

private Account withdraw(Long id, String password, double money) { Scanner scanner = new Scanner(System.in); /*

* System.out.println(\

* System.out.println(\ */

System.out.println(\ money = scanner.nextDouble(); boolean flg = false;

for (Account a : setAcc) {

if (id.equals(a.getId()) && password.equals(a.getPassword())) { if (a.withdraw(money) != null) { String str = setAcc.toString(); File file = creatFile(); writeFile(file, str); flg = true; }

break; } }

if (flg == true) {

System.out.println(\交易成功\ } else {

System.out.println(\交易失败\ }

choose(id, password); return null; }

// 转账功能

private boolean transfer(Long from, String passwordFrom, Long to, double money) {

Scanner scanner = new Scanner(System.in); /*

* System.out.println(\ * System.out.println(\

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