Challenge 5: Implement a Calculator Class
In this exercise, you have to implement a calculator which can perform addition, subtraction, multiplication, and division.
We'll cover the following
Problem Statement
Write a Java class called Calculator
with
-
private
fields:num1
andnum2
(double type)
And methods:
-
add()
, a method which returns the addition of two numbers -
subtract()
, a method which returns the subtraction of num1 from num2 -
multiply()
, a method which returns the multiplication of numbers -
divide()
, a method which returns the division of num2 by num1 -
Define a parameterized constructor which takes two parameters
num1
andnum2
and assigns these variables to the respective fields in the class.
Input
Pass double point numbers in the parameterized constructor
Output
addition, subtraction, division, and multiplication
Sample Input
Calculator obj = new Calculator(10, 94);
obj.add()
obj.subtract()
obj.multiply()
obj.divide()
Sample Output
104
84
940
9.4
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