lib/calc.rb in calc-nik-0.0.1 vs lib/calc.rb in calc-nik-0.0.2

@@ -1,7 +1,29 @@
 require "calc/version"
 
 module Calc
-  def self.meth
-    42
+  class Calc
+    def initialize
+      @numbers = Array.new
+    end
+
+    def get(*args)
+      @numbers.push(args).flatten!
+    end
+
+    def plus
+      res = @numbers.reduce(&:+)
+      wipe
+      res || 0
+    end
+
+    def minus
+      - plus
+    end
+
+    private
+
+    def wipe
+      @numbers = []
+    end
   end
 end