HackFest21/Calculator in python using class at main · itspyguru/HackFest21 · GitHub

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
class cal():

    def __init__(self,a,b):

        self.a=a

        self.b=b

    def add(self):

        return self.a+self.b

    def mul(self):

        return self.a*self.b

    def div(self):

        return self.a/self.b

    def sub(self):

        return self.a-self.b

a=int(input("Enter first number: "))

b=int(input("Enter second number: "))

obj=cal(a,b)

choice=1

while choice!=0:

    print("0. Exit")

    print("1. Add")

    print("2. Subtraction")

    print("3. Multiplication")

    print("4. Division")

    choice=int(input("Enter choice: "))

    if choice==1:

        print("Result: ",obj.add())

    elif choice==2:

        print("Result: ",obj.sub())

    elif choice==3:

        print("Result: ",obj.mul())

    elif choice==4:

        print("Result: ",round(obj.div(),2))

    elif choice==0:

        print("Exiting!")

    else:

        print("Invalid choice!!")


print()