diff --git a/Homeworks/Factory_Design_Pattern/factory.jpg b/Homeworks/Factory_Design_Pattern/factory.jpg
new file mode 100644
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diff --git a/Homeworks/Factory_Design_Pattern/factory_expample.rb b/Homeworks/Factory_Design_Pattern/factory_expample.rb
new file mode 100644
index 0000000..cc6ef32
--- /dev/null
+++ 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
new file mode 100644
index 0000000..3a2c91e
--- /dev/null
+++ 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
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diff --git a/Homeworks/behavior_design_patterns/Template.png b/Homeworks/behavior_design_patterns/Template.png
new file mode 100644
index 0000000..87c6997
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diff --git a/Homeworks/behavior_design_patterns/template.rb b/Homeworks/behavior_design_patterns/template.rb
new file mode 100644
index 0000000..a661282
--- /dev/null
+++ 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 ''
+ end
+
+ def output_head
+ puts ' '
+ puts " #{@title}"
+ puts ' '
+ end
+
+ def output_body_start
+ puts ''
+ end
+
+ def output_line(line)
+ puts " #{line}
"
+ end
+
+ def output_body_end
+ puts ''
+ end
+
+ def output_end
+ puts ''
+ end
+end
+
+
+report = HTMLReport.new
+report.output_report
+
+report = PlainTextReport.new
+report.output_report