assignment3

class SimpleCalculator:
    def __init__(self, name):
        self.name = name

    def add(self, a, b):
        return a + b

    def subtract(self, a, b):
        return a - b

    def multiply(self, a, b):
        return a * b

    def divide(self, a, b):
        if b == 0:
            return 'Syntax Error! Division by zero is prohibited'
        else:
            return a / b

    def greet_user(self):
        print("Hello, " + self.name + "'!' Welcome to my Simple Calculator.")

    def run_calculator(self):
        while True:
            print("Choose an operation:")
            print("1. Add")
            print("2. Subtract")
            print("3. Multiply")
            print("4. Divide")
            print("5. Exit")

            choice = input("Select a choice (1, 2, 3, 4, 5): ")

            if choice in ('1', '2', '3', '4'):
                num1 = float(input("please Input the first number: "))
                num2 = float(input("please Input the second number: "))

                if choice == '1':
                    print(num1, "+", num2, "=", self.add(num1, num2))
                    print("continue calculating?")

                elif choice == '2':
                    print(num1, "-", num2, "=", self.subtract(num1, num2))
                    print("continue calculating?")

                elif choice == '3':
                    print(num1, "*", num2, "=", self.multiply(num1, num2))
                    print("continue calculating?")

                elif choice == '4':
                    print(num1, "/", num2, "=", self.divide(num1, num2))
                    print("continue calculating?")

            elif choice == '5':
                print("Closing Calculator.... ")
                print("Goodbye " + self.name)
                break

            else:
                print("Invalid Input")


# Main program
name = input("Enter your name, please: ")
calculator = SimpleCalculator(name)
calculator.greet_user()
calculator.run_calculator()