Contents

class Calculator
  def initialize
    @stack = []
  end
  def enter( value ) 
    @stack.push value
  end
  def screen
    @stack[0]
  end
  def add
    @stack.push( @stack.pop + @stack.pop )
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
beta_tools-0.0.5	lib/it_tools/calc.rb
beta_tools-0.0.4	lib/it_tools/calc.rb