迷你ATM应用程序，需要知道我可以适应2维或多维阵列的位置 [英] Mini ATM APPLICATION , need to know where I can fit a 2 or multi dimensional array
本文介绍了迷你ATM应用程序，需要知道我可以适应2维或多维阵列的位置的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我完成了我的代码并完成了所有工作，除了我必须在我的程序或二维数组中使用多维数组的部分，如果您有任何建议，请提前将其作为解决方案发布。
我的尝试：
/ * Skandan Vecham
* 2018-11-08
*迷你银行申请
* /
import java.util。*;
公共类ATM {
public static void main（String [] args）{
Scanner input = new Scanner（System.in）;
//存储帐号和密码的变量
String acctNum，pin =;
//原始余额，有助于确定帐户信息是真还是假
String originalBalance =error;
//存储和提取金额的变量
double depositAmount，withdrawAmount = 0;
//主菜单选项
int mainMenu = 0;
//用于锁定用户的计数器
int counter = 3;
//用户输入帐号和循环
循环
{
System.out.println（输入帐号：）;
acctNum = input.next（）;
System.out.println（输入引脚：）;
pin = input.next（）;
originalBalance = validation（acctNum，pin）;
counter--;
// if语句判断用户是否尝试了多次
//如果语句将用户踢出程序
if（counter == 0）
{
System.out.println（\\\
达到的最大尝试次数，请访问分支机构或以您的方式致电银行）;
System.exit（0）;
}
// if语句打破循环并继续使用程序，前提是给出的信息为真
else if（！（originalBalance.equals（error）））
{
休息;
}
} while（originalBalance.equals（error））;
//将字符串中的余额转换为双倍进行计算
double balance = Double.parseDouble（originalBalance）;
// while循环重复mainMenu多次
do
{
mainMenu = mainMenuOption（）;
// if语句将用户带到所需的位置
//如果语句1需要用户提取
if（mainMenu == 1）
{
//要求用户想要提取多少钱，如果提款金额是
//大于当前余额，它将不会处理请求
System.out.println（您想要提取多少钱 ）;
withdrawAmount = input.nextDouble（）;
// while循环重复进程
while（withdrawAmount> balance）
{
System.out.println（Insufficient Funds\\\
Balance = $+ balance +\再试一次）;
withdrawAmount = input.nextDouble（）;
}
balance = withdraw（withdrawAmount，balance）;
}
//打开存款方式并存入用户选择的金额
否则if（mainMenu == 2）
{
System.out.println（多少钱你要存钱吗）;
depositAmount = input.nextDouble（）;
余额=存款（depositAmount，余额）;
}
//显示余额
的方法如果（mainMenu == 3）
{
displayBalance（balance）;
}
//结束程序的方法
else if（mainMenu == 4）
{
System.out.println（感谢您访问银行of Skandanavia）;
休息;
}
} while（mainMenu！= 4）;
}
//显示账户余额
public static void displayBalance（double balance）{
// printf $％。2f \ n舍入小数
System.out.printf（账户余额= $％。2f\ n，余额）;
}
// withdraw方法，其中包含withdrawAmount和余额
public static double withdraw（double withdrawAmount，double balance）
{
// printf $％。2f \\\
舍入小数
double newBalance = 0;
newBalance = balance-withdrawAmount;
System.out.printf（Balance = $％。2f \ n，newBalance）;
返回newBalance;
}
//将用户输入存入其账户的存款方式
公共静态双重存款（double depositAmount，double balance）
{
double newBalance = 0;
newBalance = balance + depositAmount;
System.out.printf（Balance = $％。2f \ n，newBalance）;
返回newBalance;
}
//主菜单方法，指导用户按所需方向
public static int mainMenuOption（）{
Scanner input = new Scanner（ System.in）;
int userInput = 0;
System.out.println（\\\
你今天想做什么？）;
System.out.println（1。撤回）;
System.out.println（2.存款）;
System.out.println（3。银行余额）;
System.out.println（4.退出）;
userInput = input.nextInt（）;
返回userInput;
}
//用户信息验证
public static字符串验证（String acctNum，String pin）{
//包含帐号，帐号密码和帐户余额的数组
String accountNums [] = {1234567，2345678，3456789，456789，76589};
String accountPin [] = {1234，2345，3456，4567，5678};
double accountBal [] = {56.8,89.6,97.3,110.9,996.8};
//结果变量帮助main方法中的原始余额来决定用户输入是否为false
String result =;
//将双重账户余额转换为字符串，以便它可以返回主方法
String accountBalS =;
int counter = 0;
// for循环检查帐户信息是否匹配数组
for（int x = 0; x< 5; x ++）
{
//实际转换为double
accountBalS = Double.toString（accountBal [x]）;
counter + = 1;
if（（accountNums [x] .equals（acctNum））&&（accountPin [x] .equals（pin）））
{
result = accountBalS;
返回结果;
}
//如果帐号或pin无效，则此if语句将运行
else if（！（accountNums [x] .equals（acctNum）||（accountPin [x]）。 equals（pin）））&& counter == 5）
{
System.out.println（帐号或pin无效再尝试）;
result =error;
返回结果;
}
}
返回结果;
}
}
解决方案
+余额+\\ n再次尝试）;
withdrawAmount = input.nextDouble（）;
}
balance = withdraw（withdrawAmount，balance）;
}
//打开存款方式并存入用户选择的金额
else if（mainMenu == 2）
{
System.out.println（您要存入多少钱）;
depositAmount = input.nextDouble（）;
balance = deposit（depositAmount，balance）;
}
//显示余额的方法
else if（mainMenu == 3）
{
displayBalance（balance）;
}
//结束程序的方法
else if（mainMenu == 4）
{
System.out.println（感谢您访问银行of Skandanavia）;
休息;
}
} while（mainMenu！= 4）;
}
//显示账户余额
public static void displayBalance（double balance）{
// printf
< blockquote>％。2f \ n舍入小数
System.out.printf（账户余额=
％。2f\ n，余额）;
}
// withdraw方法，其中包含withdrawAmount和余额
public static double withdraw（double withdrawAmount，double balance）
{
// printf
I'm done my code and have everything done, except for the part where i have to use a multi dimensional array in my program or two dimensional arrays, if you have any suggestions please post it as a solution thanks in advance.
What I have tried:
/*Skandan Vecham
*2018-11-08
* Mini Bank Application
*/
import java.util.*;
public class ATM {
public static void main(String[] args) {
Scanner input=new Scanner (System.in);
//variables that store account number and pin
String acctNum,pin="";
// original balance which helps decide if the account information is true or false
String originalBalance="error";
//variables to store deposit and withdrawal amounts
double depositAmount, withdrawAmount=0;
// main menu option
int mainMenu=0;
// counter to lock user out
int counter=3;
// loop for user input of account number and pin
do
{
System.out.println("Enter the account number:");
acctNum=input.next();
System.out.println("Enter the pin:");
pin=input.next();
originalBalance=validation(acctNum,pin);
counter--;
// if statements to decide if user has tried to many times
// if statement that kicks user out of program
if(counter==0)
{
System.out.println("\nMaximum amount of attempts reached\nPlease visit a branch or call the bank at your convinence");
System.exit(0);
}
// if statement that breaks the loop and gets on with the program provided that the information given is true
else if(!(originalBalance.equals("error")))
{
break;
}
}while(originalBalance.equals("error"));
// converts balance which is in string to double for calculations
double balance=Double.parseDouble(originalBalance);
// do while loop to repeat the mainMenu multiple times
do
{
mainMenu=mainMenuOption();
// if statements that take user to desired place
// if statement 1 takes user to withdrawal
if (mainMenu==1)
{
//Asks how much money the user would like to withdraw, and if withdraw amount is
// greater than current balance it will not process the request
System.out.println("How much money would you like to withdraw");
withdrawAmount=input.nextDouble();
// while loop repeats the process
while(withdrawAmount>balance)
{
System.out.println("Insufficient Funds\nBalance= $"+balance+"\nTry again");
withdrawAmount=input.nextDouble();
}
balance=withdraw(withdrawAmount,balance);
}
// opens deposit method and deposits users choice of money
else if (mainMenu==2)
{
System.out.println("How much money would you like to deposit");
depositAmount=input.nextDouble();
balance=deposit(depositAmount,balance);
}
// method that displays balance
else if(mainMenu==3)
{
displayBalance(balance);
}
// method that ends the program
else if(mainMenu==4)
{
System.out.println("Thank you for visiting the Bank of Skandanavia");
break;
}
}while(mainMenu!=4);
}
// shows the balance of the account
public static void displayBalance(double balance) {
//printf $%.2f\n rounds decimals
System.out.printf("Account Balance= $%.2f\n",balance);
}
// withdraw method which contains the withdrawAmount and balance
public static double withdraw(double withdrawAmount, double balance)
{
//printf $%.2f\n rounds decimals
double newBalance=0;
newBalance=balance-withdrawAmount;
System.out.printf("Balance= $%.2f\n",newBalance);
return newBalance;
}
// deposit method that deposits userinput into their accounts
public static double deposit(double depositAmount, double balance)
{
double newBalance=0;
newBalance=balance+depositAmount;
System.out.printf("Balance= $ %.2f\n",newBalance);
return newBalance;
}
// main menu method, directs user in the desired direction
public static int mainMenuOption() {
Scanner input=new Scanner(System.in);
int userInput=0;
System.out.println("\nWhat would you like to do today?");
System.out.println("1. withdrawal");
System.out.println("2. Deposit");
System.out.println("3. Bank Balance");
System.out.println("4. Exit");
userInput=input.nextInt();
return userInput;
}
// validation of the users information
public static String validation(String acctNum,String pin) {
// array that holds account number, account pin, and account balance
String accountNums[]= {"1234567","2345678","3456789","456789","76589"};
String accountPin[]= {"1234","2345","3456","4567","5678"};
double accountBal[]= {56.8,89.6,97.3,110.9,996.8};
// result variable helps the original balance in the main method to decide if user input is false
String result="";
// to convert double account balance to string so it can return to main method
String accountBalS="";
int counter=0;
// for loop to check if account information matches arrays
for(int x=0;x<5;x++)
{
// actual conversion of double to string
accountBalS=Double.toString(accountBal[x]);
counter+=1;
if((accountNums[x].equals(acctNum))&&(accountPin[x].equals(pin)))
{
result=accountBalS;
return result;
}
// if account number or pin is invalid then this if statement will run
else if(!(accountNums[x].equals(acctNum)||(accountPin[x].equals(pin)))&&counter==5)
{
System.out.println("Account number or pin is invalid try again");
result="error";
return result;
}
}
return result;
}
} 解决方案
"+balance+"\nTry again"); withdrawAmount=input.nextDouble(); } balance=withdraw(withdrawAmount,balance); } // opens deposit method and deposits users choice of money else if (mainMenu==2) { System.out.println("How much money would you like to deposit"); depositAmount=input.nextDouble(); balance=deposit(depositAmount,balance); } // method that displays balance else if(mainMenu==3) { displayBalance(balance); } // method that ends the program else if(mainMenu==4) { System.out.println("Thank you for visiting the Bank of Skandanavia"); break; } }while(mainMenu!=4); } // shows the balance of the account public static void displayBalance(double balance) { //printf
%.2f\n rounds decimals System.out.printf("Account Balance=
%.2f\n",balance); } // withdraw method which contains the withdrawAmount and balance public static double withdraw(double withdrawAmount, double balance) { //printf
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