은행 입출금, Java

은행 입출금

//'main' method must be in a class 'Rextester'.
//Compiler version 1.8.0_72

import java.util.*;
import java.lang.*;
 
class moneycol {
    int deposit, withdraw, balance;
}
 
class Rextester {
    private static Scanner scan;
 
    public static void main(String[] args) {
        moneycol m = new moneycol();
        String input;
        scan = new Scanner(System.in);
        while (true) {
            System.out.print("1.입금 | 2.출금 | 3.잔고 | 4.종료:");
            input=scan.next();
 
            switch (input) {
 
            case "1":
                while (true) {
                    System.out.print("입금액을 입력하세요:");
                    m.deposit = scan.nextInt();
                    if (m.deposit > 0) {
                        System.out.println(m.deposit + "원 입금되었습니다.");
                        m.balance += m.deposit;
                        System.out.println("현재 잔액은" + m.balance + "입니다.");
                    } else {
                        System.out.println("입금액을 잘못 입력하였습니다.");
                        System.out.println("현재 잔액은" + m.balance + "입니다.");
                        continue;
                    }
                    break;
                }
                continue;
 
            case "2":
                while (m.balance > 0) {
                    System.out.println("현재 잔액은" + m.balance + "입니다.");
                    System.out.println("출금액을 입력하세요:");
                    m.withdraw = scan.nextInt();
                    if (m.balance > m.withdraw && m.withdraw > 0) {
                        m.balance -= m.withdraw;
                        System.out.println(m.withdraw + "원 출금되었습니다.");
                        System.out.println("현재잔액은" + m.balance + "입니다.");
                    } else {
                        System.out.println("잘못입력했어요 다시 진행해주세요.");
                        // System.out.println("현재 잔액은"+m.balance+"입니다.");
                        break;
                    }
                    break;
                }
                if (m.balance == 0) {
                    System.out.println("잔액이 없어 처음메뉴로 돌아갑니다.");
                }
 
                continue;
 
            case "3":
                System.out.println("현재 잔고는" + m.balance + "원 입니다");
                continue;
 
            case "4":
                System.out.println("프로그램을 종료합니다.");
                System.out.println("");
                break;
 
            default:
                System.out.print("잘못입력하여 처음메뉴로 돌아갑니다.");
                continue;
 
            }
            break;
        }
    }
}


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