Java基於控制臺界面實現ATM系統
本文實例為大傢分享瞭Java實現ATM系統的具體代碼，供大傢參考，具體內容如下
這應該算最基礎的Javase項目瞭，但其中邏輯還是得想想的。
功能還算完善，隻是對輸入數據的校驗沒做全，之後做web時再加上。
沒有數據庫。
完整代碼在最後。
流程圖
登錄
想模擬提款機插卡登錄的，因此沒做註冊賬號的功能，手動先塞瞭三個賬號。
有三次輸入密碼機會。
查詢
取款
存款
轉賬
修改密碼
退出
代碼
文件結構
下面兩個類復制過去放到ATM文件夾下就能運行。
package ATM;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class Account {
private String cardID;
private String username;
private String password;
private double balance;
private boolean status;//卡 鎖定狀態
public Account() {
}
public Account(String cardID, String username, String password, double balance, boolean status) {
this.cardID = cardID;
this.username = username;
this.password = password;
this.balance = balance;
this.status = status;
}
public Account(String cardID, String username, String password, double balance) {
this.cardID = cardID;
this.username = username;
this.password = password;
this.balance = balance;
}
public String getCardID() {
return cardID;
}
public void setCardID(String cardID) {
this.cardID = cardID;
}
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 getBalance() {
return balance;
}
public void setBalance(double balance) {
this.balance = balance;
}
public boolean isStatus() {
return status;
}
public void setStatus(boolean status) {
this.status = status;
}
@Override
public String toString(){
System.currentTimeMillis();
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String formatDate = sdf.format(date);
return "銀行：新航路銀行\n" +
"銀行賬號:"+cardID+"\n"
+"用戶名："+username+"\n"
+"餘額："+balance+"\n"
+formatDate;
}
}
package ATM;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Scanner;
public class ATM {
static Scanner sc = new Scanner(System.in);
static ArrayList<Account> accounts;
public static void main(String[] args) {
//模仿插卡ATM,因此沒做註冊用戶功能，這裡自己添加瞭幾個用戶做測試。
accounts = new ArrayList<>();
accounts.add(new Account("10001", "路飛", "ONEPIECE", 100,true));
accounts.add(new Account("10002", "索隆", "123456", 10000,false));
accounts.add(new Account("10003", "娜美", "123456", 1000000d,true));
//登錄
loginVerify();
}
//登錄驗證
public static void loginVerify() {
System.out.println("提示：有這些賬戶");
for (Account account : accounts) {
System.out.println("卡號："+account.getCardID() +" 用戶名：" + account.getUsername()+" 密碼："+account.getPassword()+" 餘額："+account.getBalance());
}
System.out.println("---------------------------------------------");
//模擬插卡,手動輸入銀行卡號
System.out.print("輸入銀行卡號:");
String cardID = sc.next();
//根據卡號,判斷此賬號是否存在
for (int i = 0; i < accounts.size(); i++) {
Account account = accounts.get(i);
if (cardID.equals(account.getCardID())) { //判斷卡號是否存在
if(account.isStatus()) { //看該卡是否被鎖
//賬號存在，輸入密碼
System.out.print("請輸入密碼:");
int count = 3;//可輸入3次密碼
while (count > 0) {
sc.useDelimiter("\n");
String pwd = sc.next();
if (pwd.equals(accounts.get(i).getPassword())) {
//登錄成功，轉到主界面
mainInterface(accounts.get(i));
} else {
if(--count == 0){
System.out.println("此卡已鎖，請到人工處咨詢辦理。");
accounts.get(i).setStatus(false);
}else {
System.out.println("還有" + count + "次輸入機會");
}
}
}
}else{
System.out.println("此卡已鎖，請到人工處咨詢辦理。");
}
break;
}
if(i == accounts.size()-1){
System.out.println("此卡號不存在!!");
}
}
}
public static void mainInterface(Account account) {
System.out.println("=====================================");
System.out.println("|| 1.查詢餘額 5.修改密碼||");
System.out.println("|| 2.取款 6.退卡 ||");
System.out.println("|| 3.存款 ||");
System.out.println("|| 4.轉賬 ||");
System.out.println("=====================================");
System.out.print("請輸入要操作的號碼:");
int i = sc.nextInt();
switch (i) {
case 1:
queryBalance(account);
break;
case 2:
withdrawal(account);
break;
case 3:
deposit(account);
break;
case 4:
transfer(account);
break;
case 5:
updatePassword(account);
break;
case 6:
exitSystem();
break;
default:
System.out.println("輸入號碼不對！");
break;
}
}
//查詢餘額
public static void queryBalance(Account account) {
System.out.println("=====================================");
System.out.println("|| "+account.getUsername() + "的餘額: " + account.getBalance());
System.out.println("=====================================");
mainInterface(account);
}
//取款
public static void withdrawal(Account account) {
System.out.print("請輸入取款金額:");
double money = sc.nextInt();
if (money <= account.getBalance()) {
account.setBalance(account.getBalance() - money);
System.out.println("取款成功!!");
System.out.println("=====================================");
System.out.println("|| 1.返回主界面 2.打印發票||");
System.out.println("=====================================");
int i = sc.nextInt();
switch (i) {
case 1:
mainInterface(account);
break;
case 2:
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String formatDate = sdf.format(date);
System.out.println("銀行:新航路銀行\n"+
"銀行卡："+account.getCardID()+"\n"+
"用戶名："+account.getUsername()+"\n"+
"本次取款:"+money+"\n"+
formatDate);
mainInterface(account);
break;
}
} else {
System.out.println("oh,我可憐的孩子！餘額不足捏。");
System.out.println("=====================================");
System.out.println("|| 1.返回 enter ||");
System.out.println("=====================================");
sc.next();
mainInterface(account);
}
}
//存款
public static void deposit(Account account) {
System.out.print("請輸入要存款金額:");
double tempMoney = sc.nextDouble();
account.setBalance(account.getBalance() + tempMoney);
System.out.println("嗶~嗶~嗶 點鈔中...");
System.out.println("存款成功");
mainInterface(account);
}
//轉賬
public static void transfer(Account account) {
System.out.println("請輸入對方卡號(提示賬號有：10001 /10002 /10003)");
String cardID = sc.next();
//根據卡號,判斷此賬號是否存在
for (int i = 0; i < accounts.size(); i++) {
if (cardID.equals(accounts.get(i).getCardID())) {
System.out.print("請輸入對象用戶名驗證：");
sc.nextLine();
String next = sc.nextLine();
if(next.equals(accounts.get(i).getUsername())) {
System.out.print("請輸入要轉的金額:");
double m = sc.nextDouble();
if (m > account.getBalance()) {
System.out.println("你沒這麼多錢，轉賬失敗！");
break;
} else {
account.setBalance(account.getBalance() - m);
accounts.get(i).setBalance(m + accounts.get(i).getBalance());
System.out.println("轉賬成功");
break;
}
}else{
System.out.println("賬號與用戶名不匹配,轉賬失敗");
break;
}
}
if(i == accounts.size()-1) {
System.out.println("此卡號不存在!!");
}
}
mainInterface(account);
}
//5. 修改密碼
public static void updatePassword(Account account){
System.out.print("請輸入新密碼:");
String s1 = sc.next();
System.out.print("請再次輸入新密碼:");
String s2 = sc.next();
if(s1.equals(s2)){
account.setPassword(s1);
System.out.println("密碼修改成功,請重新登錄!");
loginVerify();
}else{
System.out.println("兩次密碼不一致");
mainInterface(account);
}
}
//6. 退出
public static void exitSystem() {
System.exit(0);
//loginVerify();
}
}
以上就是本文的全部內容，希望對大傢的學習有所幫助，也希望大傢多多支持WalkonNet。