Homework for Week 7 Questions only

.gitignore

@@ -0,0 +1,2 @@
+
+week2/homework/simon_says.rb

untitled.tmproj

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>documents</key>
+	<array>
+		<dict>
+			<key>filename</key>
+			<string>week2/exercises/book_spec.rb</string>
+			<key>lastUsed</key>
+			<date>2013-10-23T03:01:38Z</date>
+		</dict>
+		<dict>
+			<key>filename</key>
+			<string>week3/exercises/monster.rb</string>
+		</dict>
+		<dict>
+			<key>filename</key>
+			<string>week3/exercises/monsters.rb</string>
+			<key>lastUsed</key>
+			<date>2013-10-23T03:28:51Z</date>
+			<key>selected</key>
+			<true/>
+		</dict>
+		<dict>
+			<key>filename</key>
+			<string>week3/exercises/named_thing.rb</string>
+		</dict>
+		<dict>
+			<key>filename</key>
+			<string>week3/exercises/vampire.rb</string>
+		</dict>
+		<dict>
+			<key>filename</key>
+			<string>week2/exercises/book.rb</string>
+			<key>lastUsed</key>
+			<date>2013-10-23T03:01:40Z</date>
+		</dict>
+		<dict>
+			<key>filename</key>
+			<string>week2/exercises/mad_libs.rb</string>
+		</dict>
+		<dict>
+			<key>filename</key>
+			<string>week2/homework/simon_says.rb</string>
+			<key>lastUsed</key>
+			<date>2013-10-23T01:32:06Z</date>
+		</dict>
+	</array>
+	<key>fileHierarchyDrawerWidth</key>
+	<integer>200</integer>
+	<key>metaData</key>
+	<dict/>
+	<key>showFileHierarchyDrawer</key>
+	<true/>
+	<key>windowFrame</key>
+	<string>{{210, 54}, {1070, 719}}</string>
+</dict>
+</plist>

week1/homework/questions.txt

@@ -2,14 +2,18 @@ Please read:
 Chapter 3 Classes, Objects, and Variables 
 p.86-90 Strings (Strings section in Chapter 6 Standard Types)
 
-1. What is an object?
+1. What is an object?- Everything in Ruby is an object. 
 
-2. What is a variable?
+2. What is a variable? something i can manipulate/change
 
-3. What is the difference between an object and a class?
+3. What is the difference between an object and a class? A class is an object that represents a state and methods that can change that state.  
 
-4. What is a String?
+4. What is a String? text 
 
 5. What are three messages that I can send to a string object? Hint: think methods
+length, new concatenate 
+
+6. What are two ways of defining a String literal? 
+Single quotes : is a what you see is what you get. 
+double quotes : The string can use string interpolation to allow you to enter text dynamically" "
 
-6. What are two ways of defining a String literal? Bonus: What is the difference between the two?

week1/homework/string-program.rb

@@ -0,0 +1,12 @@
+
+#  def initialize (my_string) 
+    my_string = "Renée is a fun teacher. Ruby is a really cool programming language"
+puts "#{my_string}"
+ # end
+  #def text_ops (text)
+  s_length = my_string.length
+  split_string =  my_string.split(".")
+puts "#{s_length}"
+puts "#{split_string}"
+#  end
+#end

week1/homework/strings_and_rspec_spec.rb

@@ -12,14 +12,17 @@
 		before(:all) do
 			@my_string = "Renée is a fun teacher. Ruby is a really cool programming language"
 		end
-		it "should be able to count the charaters"
+		it "should be able to count the charaters" do 
+		  @my_string.should_not be_nil
+	  end
 		it "should be able to split on the . charater" do
-			pending
-			result = #do something with @my_string here
+
+			result = @my_string.split(".")
 			result.should have(2).items	
 		end
 		it "should be able to give the encoding of the string" do
-			pending 'helpful hint: should eq (Encoding.find("UTF-8"))'
+
+			@my_string.encoding.should eq (Encoding.find("UTF-8"))
 		end
 	end
 end

week2/exercises/book.rb

@@ -4,6 +4,14 @@ class Book
 
   @@book_count = 0
 
+<<<<<<< HEAD
+  def self.library_count
+    @@book_count
+  end
+
+  def test
+    @test= "hello!"
+=======
   def self.book_count
     @@book_count
   end
@@ -17,11 +25,17 @@ def initialize title = "Not Set", page_count = 0
 
   def test
     @test = "Hello!"
+>>>>>>> fde8a74b427aa79cd14a4014401682c12225e82b
   end
 
   def out_put_test
     puts @test
     puts @@book_count
   end
+<<<<<<< HEAD
+end
+
+=======
 
-end
+end
+>>>>>>> fde8a74b427aa79cd14a4014401682c12225e82b

week2/exercises/book_spec.rb

@@ -1,6 +1,35 @@
 require './book'
 
 describe Book do
+<<<<<<< HEAD
+
+	context "::new" do
+	  it ""
+
+  end
+
+
+	context "title" do
+
+	before :each do
+
+		@book = Book.new("Harry Potter", 200)
+	end
+	it "should respond to title" do
+		@book.should respond_to "title"
+	end
+	it "shoud be able to set " do
+    @book.title = "Good to Great"
+    @book.title.should eq "Good to Great"
+  end
+
+	it "should return the page count" do
+		@book.page_count.should eq "Page count is 200"
+	end
+end
+end
+
+=======
 
 
   context "::book_count" do
@@ -46,4 +75,5 @@
 
   end
 
-end
+end
+>>>>>>> fde8a74b427aa79cd14a4014401682c12225e82b

week2/homework/questions.txt

@@ -3,11 +3,26 @@ Containers, Blocks, and Iterators
 Sharing Functionality: Inheritance, Modules, and Mixins
 
 1. What is the difference between a Hash and an Array?
+An array stores data using an index as the locator. A Hash uses a key that can be any object. That object is associated with the data stored under that key. 
 
 2. When would you use an Array over a Hash and vice versa?
 
-3. What is a module? Enumerable is a built in Ruby module, what is it?
+An array seems to be a good idea when you're intaking data for processing. In the example in the book when you want to do a word counting operation, creating a large array with all of the words as entries seems like a good idea. Now when that array is read each word can serve as a key and you can count how many times that word appears. 
 
-4. Can you inherit more than one thing in Ruby? How could you get around this problem?
+Another place i can see an array having short coming is if I were to design an application with custom fields. If i were to use an array i would have to "keep track" of the data to know what to report back as an answer to a query. If all of the entries are hashes I just retrieve the data based on the hash.  
+
+3. What is a module?
+A module is a collection of classes, methods and constants that can be used together. 
+
+Enumerable is a built in Ruby module, what is it?
+
+Emumerable is a mixin that allows your class to use methods that aid in sorting, comparing and modifying hashes and arrays. 
+
+4. Can you inherit more than one thing in Ruby? 
+No Ruby is a single inheritance language. 
+
+How could you get around this problem?
+Mixins/modules help get around this problem by providing inheritance like functionality. 
 
 5. What is the difference between a Module and a Class?
+A class contains methods and constants. A module can contain classes, methods, and constants. Modules help prevent clashed between methods with the same names between different classes.

week2/homework/simon_says_spec.rb

@@ -22,7 +22,7 @@
   end
 
   it "should repeat" do
-    repeat("hello").should == "hello hello"
+    repeat("hello", 2).should == "hello hello"
   end
 
   it "should repeat a number of times" do

week3/homework/calculator.rb

@@ -0,0 +1,18 @@
+class Calculator
+	def sum  input
+		input.reduce(:+).to_f # Class notes ( result = 0, input.each do  |i| result +=1
+  end
+
+	def multiply a, b=1 # *(args or input)
+		[a, b].flatten.reduce(:*).to_f
+	end
+
+	def fac a 
+		(1..(a.zero? ?  1 : a)).inject(:*) # 1.upto()
+	end
+
+	def pow a, b
+		a**b 	
+	end
+
+end

week3/homework/calculator_spec.rb

@@ -1,4 +1,4 @@
-require "#{File.dirname(__FILE__)}/calculator"
+require "./calculator.rb"
 
 describe Calculator do
 
@@ -28,11 +28,11 @@
   # write tests and code for the following:
   describe "#multiply" do
   	it "multiplies two numbers" do
-		@calculator.multiply(2,2).should eq 4
+		@calculator.multiply(7,2).should eq 14
 	end
 
   	it "multiplies an array of numbers" do
-		@calculator.multiply([2,2]).should eq 4
+		@calculator.multiply([2,7]).should eq 14
   	end
   end
 

week3/homework/questions.txt

@@ -6,10 +6,18 @@ Please Read:
 
 1. What is a symbol?
 
+An identifier cooresponding to a string. 
+
 2. What is the difference between a symbol and a string?
 
+A string is just a "string". A symbol is a string serves the purpose of identifying an object. 
+
 3. What is a block and how do I call a block?
 
+A set of code that is inside {} or the keywords do and end. A block can be thought of as a method itself that is called a yield statement. 
+
 4. How do I pass a block to a method? What is the method signature?
+Be defining a method that used yield to invoke the code inside the block when that method is used.  The method signature is the name of the method.
 
 5. Where would you use regular expressions?
+To sort through various strings searching for patterns. 

week4/Rakefile.rb

@@ -0,0 +1,10 @@
+task :default => [:hello_world]
+
+desc "this outputs hello world!"
+task :hello_world do 
+  puts "hello world!"
+end
+
+def test 
+  "tequila"
+end

week4/class_materials/class_power.rb

@@ -0,0 +1,19 @@
+class PowerOfTwo 
+	attr_reader :value 
+
+	def initialize(value)
+    @value = value
+	end
+
+	def <=>(other)
+	    @value <=> other.value
+	end
+
+	def succ
+	    PowerOfTwo.new(@value + @value)
+	end
+
+	def to_s
+	@value.to_s
+	end 
+end

week4/class_materials/untitled.rb

@@ -0,0 +1,5 @@
+
+
+
+
+

week4/code_timer.rb

@@ -0,0 +1,9 @@
+class CodeTimer
+	def time_code
+		start_time = Time.now
+		yield
+		Time.now - start_time
+
+	end
+
+end

week4/filemaker.rb

@@ -0,0 +1,2 @@
+File.open("output.txt", "w") { |file| file.puts "Hello"
+file.puts "1 + 2 = #{1+2}" }

week4/homework/questions.txt

@@ -3,7 +3,13 @@ Chapter 10 Basic Input and Output
 The Rake Gem: http://rake.rubyforge.org/
 
 1. How does Ruby read files?
+Ruby uses the IO base class to handle all input and output. A sub class called file provides the tools for reading files. the method gets can be used to read lines of a file. 
 2. How would you output "Hello World!" to a file called my_output.txt?
+File.open("my_output.txt", "w") { |file| file.puts "Hello world }
 3. What is the Directory class and what is it used for?
+The directory class contains methods used to list diretories in the file system.  
 4. What is an IO object?
+A bidirectional channel between ruby and the "outside world".
+
 5. What is rake and what is it used for? What is a rake task?
+Rake must be a package written in ruby that helps run tests on the code that we are developing. You can run a task called unit test or default. I'm also thinking you can run rake db:migrate. So rake must be the task executer for ruby. 

week4/homework/work.rb

@@ -0,0 +1,15 @@
+class Worker
+  def self.work a=0
+  (a.zero? ? yield : (a-1).times {yield } ) # inject can replace this. 
+  #(a-1).times {|input| yield}
+  yield   
+
+  #class solution
+  n.times.inject(nil){|results, i| yield}
+  n.times.inject(nil){ yield } 
+
+  # inject needs a starting variable [0].inject{|results, i| puts i }
+  # this outputs zero as the inject module doesn't run the block next to it if it don't have a initial value. 
+
+  end
+end