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Solution: Design a Basic Calculator

Go over the implementation of a simple calculator as a class.

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Solution

Ruby 3.1.2
class Calculator 
   def add(a, b)
      return a + b
   end
   
   def minus(a, b)
      return a - b
   end
end
# A sample test case
calc = Calculator.new
puts calc.add(2, 3) 
puts calc.minus(17, calc.add(2, 3))

Explanation

  • Lines 1–9: We define the Calculator class with two methods—add, defined on ...