Last active
July 26, 2018 11:18
-
-
Save heyouli/3e32f1704131eae95046691da3b7d5f2 to your computer and use it in GitHub Desktop.
Ruby on Rails
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
class Cat | |
attr_reader :color, :breed | |
attr_accessor :name | |
def initialize(color, breed) | |
@color = color | |
@breed = breed | |
@hungry = true | |
end | |
def feed(food) | |
puts "Mmmm, " + food + "!" | |
@hungry = false | |
end | |
def hungry? | |
if @hungry | |
puts "I'm hungry!" | |
else | |
puts "I'm full!" | |
end | |
@hungry | |
end | |
def speak | |
puts "Meow!" | |
end | |
end | |
kitty = Cat.new("grey", "Persian") | |
puts "Let's inspect our new cat:" | |
puts kitty.inspect | |
puts "What class does our new cat belong to?" | |
puts kitty.class | |
puts "Is our new cat an object?" | |
puts kitty.is_a? (Object) | |
puts "What color is our cat?" | |
puts kitty.color | |
puts "Let's give our new cat a name" | |
kitty.name = "Betsy" | |
puts kitty.name | |
puts "Is our car hungry now?" | |
kitty.hungry? | |
puts "Let's feed our cat" | |
kitty.feed ("tuna") | |
puts "Is our cat hungry now?" | |
kitty.hungry? | |
puts "Our cat can make noise" | |
kitty.speak |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
def fav_foods | |
food_array = [] # instead of the brackets, you can also use Array.new to make a new empty array | |
3.times do | |
puts "Name a favorite food." | |
food_array << gets.chomp | |
end | |
p food_array | |
puts "Your favorite foods are #{food_array.join(", ")}." | |
food_array.each { |food| puts "I like #{food} too!" } | |
end | |
fav_foods |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
class Pet | |
attr_reader :color, :breed | |
attr_accessor :name | |
def initialize(color, breed) | |
@color = color | |
@breed = breed | |
@hungry = true | |
end | |
def feed(food) | |
puts "Mmmm, " + food + "!" | |
@hungry = false | |
end | |
def hungry? | |
if @hungry | |
puts "I'm hungry!" | |
else | |
puts "I'm full!" | |
end | |
@hungry | |
end | |
end | |
class Dog < Pet | |
def speak | |
puts "Woof!" | |
end | |
end | |
class Cat < Pet | |
def speak | |
puts "Meow!" | |
end | |
end | |
puppy = Dog.new("black", "Staffordshire Terrier") | |
puppy.speak | |
puts puppy.breed | |
kitty = Cat.new("grey", "Persian") | |
puts "Let's inspect our new cat:" | |
puts kitty.inspect | |
puts "What class does our new cat belong to?" | |
puts kitty.class | |
puts "Is our new cat an object?" | |
puts kitty.is_a? (Object) | |
puts "What color is our cat?" | |
puts kitty.color | |
puts "Let's give our new cat a name" | |
kitty.name = "Betsy" | |
puts kitty.name | |
puts "Is our car hungry now?" | |
kitty.hungry? | |
puts "Let's feed our cat" | |
kitty.feed ("tuna") | |
puts "Is our cat hungry now?" | |
kitty.hungry? | |
puts "Our cat can make noise" | |
kitty.speak |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
def greeting | |
puts "Please enter your name:" | |
name = gets.chomp | |
puts "Hello" + " " + name | |
end | |
greeting |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
if (5+5==10) | |
puts"this is true" | |
else | |
puts"this is false" | |
end |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
def choose | |
puts "Do you like programming? Yes, no or may be please." | |
choice = gets.chomp | |
case choice.downcase | |
when "yes" | |
puts "That\'s great!" | |
when "no" | |
puts "That\'s too bad!" | |
when "maybe" | |
puts "Glad you are giving it a chance!" | |
else | |
puts "I have no idea what that means." | |
end | |
end | |
choose |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
=begin | |
number=0 | |
while (number<=10) do #while this condition is true, do.. | |
p "the number is now #{number}" #whatever is in this code block | |
number +=1 #short for number = number +1 | |
end+/ #don't forget your end | |
=end | |
(0..10).each do |n| | |
p "the new numer is #{n}" | |
end |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment