Ruby

Day 4/Getter_&Setter.rb

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+# Program of Getter, Setter and Initialize Method in Ruby Class
+
+class Rectangle
+# Constructor
+  def initialize(l,b)
+  @length = l
+  @breadth = b
+  end
+  # Getter
+  def getLength
+    return @length
+  end
+
+  def getBreadth
+  return @breadth
+  end
+end
+
+# Creating an object
+rect = Rectangle.new(50,30)
+
+# Getter
+x = rect.getLength
+y = rect.getBreadth
+
+puts "The length of rectangle is: #{x}"
+puts "The breadth of rectangle is: #{y}"

Day 4/Getter_Setter_&_Initialize_Method.rb

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+# Program of Getter, Setter and Initialize Method in Ruby Class
+
+class Rectangle
+# Constructor
+  def initialize(l,b)
+  @length = l
+  @breadth = b
+  end
+  # Setter
+  def setLength=(value)
+    @length = value
+  end
+  def setBreadth=(value)
+    @breadth = value
+  end
+  # Getter
+  def getLength
+    return @length
+  end
+
+  def getBreadth
+  return @breadth
+  end
+  # Area of rectangle
+  def calculateArea
+    return @length * @breadth
+  end
+
+end
+
+# Creating an object
+rect = Rectangle.new(50,30)
+# Using Setters
+rect.setLength = 20
+rect.setBreadth = 5
+
+# Getter
+x = rect.getLength
+y = rect.getBreadth
+
+area = rect.calculateArea
+
+puts "The length of rectangle is: #{x}"
+puts "The breadth of rectangle is: #{y}"
+puts "The area is: #{area}"

Day 4/Shortcut_of_getter_setter_and to_s_method.rb

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+# Program for shortcut of getter, setter and also program of to_s method
+
+class Animal
+  # Setter & Getter
+  attr_accessor :name, :age, :trait
+
+  def to_s
+    return "The pet name is #{name}, its age is #{age}, and it is #{trait}"
+  end
+end
+
+firstAnimal = Animal.new
+
+firstAnimal.name = "Kitty"
+firstAnimal.age = 12
+firstAnimal.trait = "loudy"
+
+puts firstAnimal.name
+puts firstAnimal.age
+puts firstAnimal.trait
+
+puts firstAnimal.to_s

Day 4/Shortcut_to_Getter_&_Setter.rb

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+# Shortcut to Getter & Setter 
+
+class Rectangle
+  attr_accessor :length, :breadth
+end
+
+rect = Rectangle.new
+
+rect.length=50
+rect.breadth=30
+
+puts rect.length
+puts rect.breadth

Day 4/to_s_method.rb

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+# program for to_s method
+
+class Rectangle
+  def initialize(l,b)
+    @l = 50
+    @b = 30
+  end
+
+  def to_s
+    return "Length is #{@l} & breadth is #{@b}"
+  end
+end
+
+rect = Rectangle.new(20,10)
+
+puts "#{rect}"
+puts rect