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  • [JAVA] 은행 프로그램
    @챈챈/#Other 2020. 2. 20. 14:52

    안녕하세요 자바 악개입니다. 사실 자바보다 다른 게 더 좋지만 사는 게 다 그렇습니다.

    오늘은 사칙연산을 기반으로 한 간단한 은행 기기입니다.

    뭐든 쉬운 게 최고예요.

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    import java.util.Scanner;
     
    public class Bank {
        int money = 0;
        
        public void printMenu()
        {
            System.out.println("-------------------------------------");
            System.out.println("1.입금 | 2.출금 | 3.잔고 | 4.종료");
            System.out.println("-------------------------------------");
            System.out.print("선택 > ");
        }
        
        public void deposit()
        {
            Scanner scan = new Scanner(System.in);
            int temp = 0;
            System.out.print("예금액 > ");
            temp = scan.nextInt();
            money += temp;
        }
        
        public void withdrawal()
        {
            Scanner scan = new Scanner(System.in);
            int temp = 0;
            System.out.print("출금액 > ");
            temp = scan.nextInt();
            if(temp>money)
            {
                System.out.println("잔액이 부족합니다.");
            }
            else
            {
                money -= temp;
            }
        }
        
        public void balance()
        {
            System.out.print("잔고 > ");
            System.out.println(money);
        }
     
        public void choiceMenu()
        {
            int selection = 0;
            do
            {
                Scanner scan = new Scanner(System.in);
                printMenu();
                selection = scan.nextInt();
                switch(selection)
                {
                case 1:
                {
                    deposit();
                }
                break;
                case 2:
                {
                    withdrawal();
                }
                break;
                case 3:
                {
                    balance();
                }
                break;
                case 4:
                {
                    System.out.println("종료합니다.");
                }
                break;
                default :
                {
                    System.out.println("잘못 입력하셨습니다.");
                }
                break;
                }
            } while(selection != 4);
        }
     
        public static void main(String args[])
        {
            Bank bank = new Bank();
            bank.choiceMenu();
        }
    }

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