@챈챈/#Other

[JAVA] 은행 프로그램

자바장인 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.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
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();
    }
}