Java作业5ATM.zip

package assignment5; import java.util.ArrayList; import java.util.Scanner; // import assignment5.Account; public class ATM { private ArrayList<Account> accounts = new ArrayList<>(); private String name; public ATM() { for(int i = 0; i < 10; i++) { Account addAccount = new Account("a", i, 100); // addAccount.setBalance(100); accounts.add(addAccount); } } public void start() { System.out.print("\nEnter an id: "); Scanner in = new Scanner(System.in); int id = in.nextInt(); System.out.print("\nEnter a name: "); Scanner inName = new Scanner(System.in); this.name = inName.nextLine(); if(id >= 0 && id <= 10) { System.out.println("\nMain menu"); System.out.println("1: check balance"); System.out.println("2: withdraw"); System.out.println("3: deposit"); System.out.println("4: check transaction"); System.out.println("5: exit"); System.out.print("Enter a choice: "); int choice = in.nextInt(); choose(this.name, id, choice); } } public void chooseChoice(int id) { System.out.println("\nMain menu"); System.out.println("1: check balance"); System.out.println("2: withdraw"); System.out.println("3: deposit"); System.out.println("4: check transaction"); System.out.println("5: exit"); System.out.print("Enter a choice: "); Scanner in = new Scanner(System.in); int choice = in.nextInt(); choose(this.name, id, choice); } public void choose(String name, int id, int choice) { Scanner in = new Scanner(System.in); Account choosedAccount = (Account)accounts.get(id); switch (choice) { case 1: System.out.println("The balance is " + choosedAccount.getBalance()); chooseChoice(id); break; case 2: System.out.print("Enter an amount to withdraw: "); double withdrawAmount = in.nextDouble(); choosedAccount.setBalance(choosedAccount.getBalance() - withdrawAmount); System.out.print("Enter a description to withdraw: "); Scanner inString = new Scanner(System.in); String description = inString.nextLine(); choosedAccount.addTransaction('W', withdrawAmount, choosedAccount.getBalance(), description); chooseChoice(id); break; case 3: System.out.print("Enter an amount to deposit:" ); double depositAmount = in.nextDouble(); choosedAccount.setBalance(choosedAccount.getBalance() + depositAmount); System.out.print("Enter a description to deposit: "); Scanner depositString = new Scanner(System.in); String depositDescription = depositString.nextLine(); choosedAccount.addTransaction('D', depositAmount, choosedAccount.getBalance(), depositDescription); chooseChoice(id); break; case 4: ArrayList accountTransactions = choosedAccount.getTransactions(); for(int i = 0; i < accountTransactions.size(); i++) { Transaction transaction = (Transaction)accountTransactions.get(i); System.out.println(name + " " + transaction.getType() + " " + transaction.getAmount() + " " + transaction.getBalance()+ " " + transaction.getDescription() + " "+ transaction.getDate()); } chooseChoice(id); break; case 5: start(); break; default: System.out.println("input incorrect!"); chooseChoice(id); break; } } public static void main(String[] args) { ATM atm = new ATM(); atm.start(); } }