framgiatw · nghiadk1102 · Oct 21, 2017
diff --git a/Homeworks/Factory_Design_Pattern/factory.jpg b/Homeworks/Factory_Design_Pattern/factory.jpg
diff --git a/Homeworks/Factory_Design_Pattern/factory_expample.rb b/Homeworks/Factory_Design_Pattern/factory_expample.rb
@@ -0,0 +1,45 @@
+class Shape
+  def draw
+    raise 'must implement draw() method in subclass'
+  end
+end
+
+class Rectangle < Shape
+  def draw
+    puts 'Inside Rectangle::draw() method.'
+  end
+end
+
+class Square < Shape
+  def draw
+    puts 'Inside Square::draw() method.'
+  end
+end
+
+class Circle < Shape
+  def draw
+    puts 'Inside Circle::draw() method.'
+  end
+end
+
+class ShapeFactory
+  def get_shape(type)
+    case type
+    when 'Circle'    then Circle.new
+    when 'Rectangle' then Rectangle.new
+    when 'Square'    then Square.new
+    end
+  end
+end
+
+shape_factory = ShapeFactory.new
+
+circle = shape_factory.get_shape('Circle')
+circle.draw
+
+rectangle = shape_factory.get_shape('Rectangle')
+rectangle.draw
+
+square = shape_factory.get_shape('Square')
+square.draw
+#Chi can su dung doi tuong cua lop ShapeFactory de tao cac Shape ma khong can chi ro cu the Shape nao se duoc tao
diff --git a/Homeworks/Structural_patterns/Adapter_expample.rb b/Homeworks/Structural_patterns/Adapter_expample.rb
@@ -0,0 +1,52 @@
+class Meat
+  attr_accessor :name, :protein, :weight
+  def initialize name, protein, weight
+    @name = name
+    @weight = weight
+    @protein = protein
+  end
+
+  def take_calo
+    @weight * @protein *4 / 100
+  end
+end
+
+class Human
+  attr_accessor :energy
+  def initialize
+    @energy = 100
+  end
+
+  def eat meat
+    @energy += meat.take_calo
+  end
+end
+
+class Cow
+  attr_accessor :weight
+
+  def initialize weight
+    @weight = weight
+  end
+end
+
+class MeatAdapter
+  attr_accessor :protein, :weight
+
+  def initialize cow
+    @cow = cow
+    @weight = cow.weight
+    @protein = 4
+  end
+
+  def take_calo
+    @weight * @protein
+  end
+end
+
+human = Human.new
+meat = Meat.new "pig", 16, 100
+human.eat meat
+cow = Cow.new 1000
+meat_cow = MeatAdapter.new cow
+human.eat meat_cow
diff --git a/Homeworks/Structural_patterns/adapter.png b/Homeworks/Structural_patterns/adapter.png
diff --git a/Homeworks/behavior_design_patterns/Template.png b/Homeworks/behavior_design_patterns/Template.png
diff --git a/Homeworks/behavior_design_patterns/template.rb b/Homeworks/behavior_design_patterns/template.rb
@@ -0,0 +1,93 @@
+class ReportTemplate
+  def initialize
+    @title = 'Monthly Report'
+    @text =  ['Sample text 1', 'Sample text 2', 'Sample text 3']
+  end
+
+  def output_report
+    output_start
+    output_head
+    output_body_start
+    @text.each { |line| output_line(line) }
+    output_body_end
+    output_end
+  end
+
+  def output_start
+  end
+
+  def output_head
+    output_line(@title)
+  end
+
+  def output_body_start
+  end
+
+  def output_line(_line)
+    raise 'Called abstract method: output_line'
+  end
+
+  def output_body_end
+  end
+
+  def output_end
+  end
+end
+
+class PlainTextReport < ReportTemplate
+  def output_start
+  end
+
+  def output_head
+    puts "**** #{@title} ****"
+    puts
+  end
+
+  def output_body_start
+  end
+
+  def output_line(line)
+    puts line
+  end
+
+  def output_body_end
+  end
+
+  def output_end
+  end
+end
+
+class HTMLReport < ReportTemplate
+  def output_start
+    puts '<html>'
+  end
+
+  def output_head
+    puts '  <head>'
+    puts "    <title>#{@title}</title>"
+    puts '  </head>'
+  end
+
+  def output_body_start
+    puts '<body>'
+  end
+
+  def output_line(line)
+    puts "  <p>#{line}</p>"
+  end
+
+  def output_body_end
+    puts '</body>'
+  end
+
+  def output_end
+    puts '</html>'
+  end
+end
+
+
+report = HTMLReport.new
+report.output_report
+
+report = PlainTextReport.new
+report.output_report