ruby-basic-progamming

ruby-basic-progamming.rb

def Hallo(name, age)
  tmp = "Hallo #{name.upcase} your age is \n #{age}"
end
language = ["java", "html", "css", "ruby"]
anotherMethod = %w{java html css ruby go}
#puts language.inspect #show all element in array
#puts anotherMethod[0]
#puts Hallo("yana", 24)
a = %w{ ant bee cat dog elk }
#puts a[0] # => "ant"
#puts a[3] # => "dog"

has = {
  'name' => 'john',
  'age' => 'doe',
  'weight' => '30'
}
#p has['name']
#hashes
inst_section = {
@cello => 'string',
:clarinet => 'woodwind',
:drum => 'percussion',
:oboe => 'woodwind',
:trumpet => 'brass',
:violin => 'string'
}

# p inst_section[@cello]
# puts inst_section[:drum]
#p inst_section.inspect
#puts inst_section.inspect
  date = Time.now
  if date.saturday?
    p "keep cleaning"
  elsif date.sunday?
    puts "Please relax"
  else
    puts "Go Work"
  end

# line = gets
# if line =~ /Perl|Python/
#   puts "Scripting language mentioned: #{line}"
# end
#p date.daturday?

# line = gets
# newline = line.sub(/java/, 'Ruby') # replace first 'Perl' with 'Ruby'
# puts newline
# newerline = newline.gsub(/css/, 'framework') #replace very css with framework
# puts newerline

# def call_block
#   puts "Start of method"
#   yield
#   yield
#   yield
#   puts "End of method"
# end
# call_block {puts 2*6}
# Block = anon method
def who_say_what
  yield
  yield

end
#who_say_what{ puts "in"}
#|var1, var2| make new variable in array or iteratur
# who_say_what {|ppl, phrase| puts "#{ppl} say #{phrase}"}

# def say_hai
#   if @names.nil?
#     puts "..."
#   elsif @names.respond_to?("each")
#     # @names adalah list, iterate!
#     @names.each do |name|
#       puts "Hello #{name}!"
#     end
#   else
#     puts "Hello #{@names}!"
#   end
# end

#say_hai

#anotherMethod.each {|data| puts data} #iterator

# anotherMethod.each do
#   |a| p a #iterator
# end

# while line = gets
#   puts line
# end
class BookInStock
  attr_reader :isbn
  attr_accessor :price
  def initialize(isbn, price)
      @isbn = isbn
      @price = Float(price)
  end
  # def to_s
  #   "ISBN : #{@isbn} and Price : #{@price}"
  # end
end
# b1 = BookInStock.new("isbn1", 3)
# puts b1
# b2 = BookInStock.new("isbn2", 3.14)
# puts b2
# b3 = BookInStock.new("isbn3", "5.67")
# puts b3
book = BookInStock.new("isbn1", 33.8)

#puts "ISBN : #{book.isbn}"
# puts "You gave #{ARGV.size} arguments"
# p ARGV

name ="Timm"
objectId = 70212733196880
# #puts anotherMethod.class
# if objectId == $name.object_id
#   puts "yeah"
# else
#   puts ":("
#
# end
#puts name.freeze

# another array

b = Array.new
b[0]="Yana"
b[1]="Mulyana"

#p anotherMethod[-3,0]
#p language[0][0]
# for i in 0..4
#   word = language[i][2]
#   count = language[i][1]
#   puts "#{word}: #{count}"
# end

# language.each do |word, count|
#   puts "#{word} : #{count}"
# end

# language.each {
#   |word, count|
#   p word * 3
# }

sum = 0
[1, 2, 3, 4].each{ |value|
  square = value * value
  sum += square
}
#puts sum
sum2=0
[2, 2].each {
  |val|
  tmp = val * val
  sum2 += tmp
  p tmp
}
puts sum2