線上 Ruby 格式化程式

#!/usr/bin/ruby -w

# define a class
class Box
# constructor method
def initialize(w,h)
@width, @height = w, h
end

# accessor methods
def getWidth
@width
end
def getHeight
@height
end

# setter methods
def setWidth=(value)
@width = value
end
def setHeight=(value)
@height = value
end
end

# create an object
box = Box.new(10, 20)

# use setter methods
box.setWidth = 30
box.setHeight = 50

# use accessor methods
x = box.getWidth()
y = box.getHeight()

puts "Width of the box is : #{x}"
puts "Height of the box is : #{y}"