銀行取引をシミュレートするプログラムの作成に取り組んでいます。入金、出金、または送金を希望するかどうかをユーザーに尋ねなければなりません。現在、私は口座の入出金オプションに取り組んでいます。
ユーザーがトランザクション (たとえば預金) を選択して番号を入力すると、プログラムが「このトランザクションを続行しますか? 明らかに、はいの場合、プログラムはトランザクションを続行し、いいえの場合は続行しません」と尋ねるようにしました。ユーザーが入力した番号を入金します。
私の問題は、 no オプションに何を入れる必要があるのか 見当がつかないことです。トランザクションを拒否するということは、ループを終了する必要があることを意味するのか、それとも何を意味するのかわかりませんが、現時点では、いいえを押してもトランザクションは続行されます。以下は、トランザクションに入ったが続行したくない場合に何が起こるかを視覚的に表したものです。
以下は私のコード全体です。何を入力すればよいかわからないコードの部分に ** が付いています おそらく組織の役に立たないでしょう 申し訳ありません!
import java.util.Scanner;
public class BankTransactions {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int num;
double balance = 0;
double checkingBalance= 0, savingsBalance =0;
do {
double amount;
System.out.println("------------------------");
System.out.println("Select a Transaction by typing number");
System.out.println("1. Deposit");
System.out.println("2. Withdrawal");
System.out.println("3. Balance");
System.out.println("4. Exit");
System.out.println("------------------------");
num = scan.nextInt();
if (num == 1) { //if DEPOSIT is selected
//ask to deposit from checking or savings
System.out.println("------------------------");
System.out.println("Would you like to deposit in checking or savings?");
System.out.println("1. Checking");
System.out.println("2. Savings");
System.out.println("------------------------");
num = scan.nextInt();
if (num == 1) { //if CHECKING is selected
//enter amount to be deposited
System.out.println("------------------------");
System.out.println("Enter amount to deposit in checking account: ");
System.out.println("------------------------");
amount = scan.nextDouble();
//ask if they want to continue with transaction
System.out.println("------------------------");
System.out.println("Would you like to continue this transaction?");
System.out.println("1. Yes");
System.out.println("2. No");
System.out.println("------------------------");
num = scan.nextInt();
// Add the amount to the checking balance
checkingBalance += amount;
System.out.println("------------------------");
System.out.println("Your checking account's balance is " + checkingBalance);
System.out.println("------------------------");
} else if (num == 2) { //if SAVINGS is selected
//enter amount to be deposited
System.out.println("------------------------");
System.out.println("Enter amount to deposit in savings account: ");
System.out.println("------------------------");
amount = scan.nextDouble();
//ask if they want to continue with transaction
System.out.println("------------------------");
System.out.println("Would you like to continue this transaction?");
System.out.println("1. Yes");
System.out.println("2. No");
System.out.println("------------------------");
num = scan.nextInt();
if (num == 1) {
// Add the amount entered to the savings balance
savingsBalance += amount;
System.out.println("------------------------");
System.out.println("Your savings account's balance is " + savingsBalance);
System.out.println("------------------------");
**} else if (num == 2) {
//EMPTY NEEDS CODE
}**
}
} else if (num == 2) { //if withdrawal is selected
//ask to withdrawal from checking or savings
System.out.println("------------------------");
System.out.println("Would you like to withdrawal from checking or savings?");
System.out.println("1. Checking");
System.out.println("2. Savings");
System.out.println("------------------------");
num = scan.nextInt();
if (num == 1) { //if checking is selected
//enter amount to be withdrawn
System.out.println("------------------------");
System.out.println("Enter amount to withdrawal: ");
System.out.println("------------------------");
amount = scan.nextDouble();
//ask if they want to continue with transaction
System.out.println("------------------------");
System.out.println("Would you like to continue this transaction?");
System.out.println("1. Yes");
System.out.println("2. No");
System.out.println("------------------------");
num = scan.nextInt();
if (num == 1) { //if you say yes to continuing
// Remove the amount from the balance
checkingBalance -= amount;
System.out.println("------------------------");
System.out.println("Your checking account's balance is " + checkingBalance);
System.out.println("------------------------");
} else if (num == 2) { //if you say no to continuing
//Do not remove amount from savings balance
//EMPTY NEEDS CODE
}
} else if (num == 2) { //if savings is selected
//enter amount to be withdrawn
System.out.println("------------------------");
System.out.println("Enter amount to withdrawal: ");
System.out.println("------------------------");
amount = scan.nextDouble();
//ask if they want to continue with transaction
System.out.println("------------------------");
System.out.println("Would you like to continue this transaction?");
System.out.println("1. Yes");
System.out.println("2. No");
System.out.println("------------------------");
num = scan.nextInt();
if (num == 1) { //if you say yes to continuing
// Remove the amount from the savings balance
savingsBalance -= amount;
System.out.println("------------------------");
System.out.println("Your savings account's balance is " + savingsBalance);
System.out.println("------------------------");
} else if (num == 2) { //if you say no to continuing
//Do not remove amount from savings balance
//EMPTY NEEDS CODE
}
}
} else if (num == 3) { //if balance is selected
//ask to see balance of checking or savings
System.out.println("------------------------");
System.out.println("Your Checking balance is " + checkingBalance);
System.out.println("Your Savings balance is " + savingsBalance);
System.out.println("------------------------");
num = scan.nextInt();
//needs to return to transaction options
}
} while (num != 4);
System.out.println("------------------------");
System.out.println("Good Bye!");
System.out.println("------------------------");
}
}
私は立ち往生していて、それを理解したいと思っています。修正したコード全体を投稿しないでください。自分で直して学びたい！