In the file main.py write a class called Calculator that emulates basic functions of a calculator: add, subtract, multiply, divide, and clear. The class has one attribute called value for the calculator's current value. Implement the following methods as listed below:   Default constructor method to set the attribute to 0.0 add(self, val) - add the parameter to the attribute subtract(self, val)- subtract the parameter from the attribute multiply(self, val) - multiply the attribute by the parameter divide(self, val)- divide the attribute by the parameter clear(self) - set the attribute to 0.0 get_value(self) - return the attribute Given two float input values num1 and num2, the program outputs the following values: The initial value of the instance attribute, value The value after adding num1 The value after multiplying by 3 The value after subtracting num2 The value after dividing by 2 The value after calling the clear() method

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23.2 LAB: Calculator class (Use Python)

 

In the file main.py write a class called Calculator that emulates basic functions of a calculator: add, subtract, multiply, divide, and clear. The class has one attribute called value for the calculator's current value. Implement the following methods as listed below:

 

  • Default constructor method to set the attribute to 0.0
  • add(self, val) - add the parameter to the attribute
  • subtract(self, val)- subtract the parameter from the attribute
  • multiply(self, val) - multiply the attribute by the parameter
  • divide(self, val)- divide the attribute by the parameter
  • clear(self) - set the attribute to 0.0
  • get_value(self) - return the attribute

Given two float input values num1 and num2, the program outputs the following values:

  1. The initial value of the instance attribute, value
  2. The value after adding num1
  3. The value after multiplying by 3
  4. The value after subtracting num2
  5. The value after dividing by 2
  6. The value after calling the clear() method

 

Ex: If the input is:

10.0

5.0

 

the output is:

0.0

10.0

30.0

25.0

12.5

0.0

LAB
23.2.1: LAB: Calculator class
0/10
АCTIVITY
main.py
Load default template.
1 class Calculator:
2
# Type your code here.
4
5 if
name
== "_main_":
calc = Calculator();
numi = float(input())
num2 = float(input())
7
10
# 1. The iitial value
print('{:.1f}'.format (calc.get_value()))
11
12
13
# 2. The The value after adding num1
calc.add(num1)
print('{:.1f}'.format(calc.get_value()))
14
15
16
17
# 3. The value after multiplying by 3
calc.multiply(3)
print('{:.if}.format(calc.get_value()))
18
19
20
21
# 4. The value after subtracting num2
calc.subtract(num2)
print('{:.1f}'.format(calc.get_value()))
22
23
24
25
# 5. The value after dividing by 2
calc.divide(2)
print('{:.1f}'.format(calc.get_value()))
26
27
28
29
# 6. The value after calling the clear() method
calc.clear()
print("{:.if}'.format(calc.get_value()))
30
31
32
Transcribed Image Text:LAB 23.2.1: LAB: Calculator class 0/10 АCTIVITY main.py Load default template. 1 class Calculator: 2 # Type your code here. 4 5 if name == "_main_": calc = Calculator(); numi = float(input()) num2 = float(input()) 7 10 # 1. The iitial value print('{:.1f}'.format (calc.get_value())) 11 12 13 # 2. The The value after adding num1 calc.add(num1) print('{:.1f}'.format(calc.get_value())) 14 15 16 17 # 3. The value after multiplying by 3 calc.multiply(3) print('{:.if}.format(calc.get_value())) 18 19 20 21 # 4. The value after subtracting num2 calc.subtract(num2) print('{:.1f}'.format(calc.get_value())) 22 23 24 25 # 5. The value after dividing by 2 calc.divide(2) print('{:.1f}'.format(calc.get_value())) 26 27 28 29 # 6. The value after calling the clear() method calc.clear() print("{:.if}'.format(calc.get_value())) 30 31 32
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