Class Basic Notes

Question 1

What is a class?

Answer 1

a class is a blueprint from which individual objects of the same class are created.

Question 2

how do you create a class?

Answer 2

to create a class we use the class keyword
the name of a class must begin with a capital letter
we can define methods within a class

Question 3

how do you create a new instance of class?

Answer 3

by doing [class_name].new

Question 4

what gets executed when you call Class.new?

Answer 4

the defined initialized method is what gets executed

Question 5

what is a getter method?

Answer 5

a getter method is used to refer to the value of the attribute you assigned it to.
class Cat
  def initialize(name, color, age)
    @name = name
    @color = color
    @age = age
  end

def get_name
@name
end
end

cat_1 = Cat.new(“Sennacy”, “brown”, 3)
p cat_1.get_name # “Sennacy”

Question 6

what is a setter method?

Answer 6

we use them to modify the @attribute
class Cat
  def initialize(name, color, age)
    @name = name
    @color = color
    @age = age
  end

# getter
def age
@age
end

  # setter
  def age=(number)
    @age = number
  end
end

cat_1 = Cat.new(“Sennacy”, “brown”, 3)
p cat_1 #
cat_1.age = 42
p cat_1 #