Kaelin Sleevi

section1/ex1.rb

@@ -0,0 +1,17 @@
+Exercise
+puts "Hello World!"
+#puts "Hello Again"
+puts "I like typing this."
+#puts "This is fun."
+puts "Yay! Printing."
+#puts "I'd much rather you 'not'."
+puts 'I "said" do not touch this.'
+#puts "This is another line."
+
+Study Drills
+1. Make your script print another line.
+  - I added "puts 'This is another line.'" at the very end.
+2. Make your script print only one of the lines.
+  - I used an octothorpe to in front of each line except one.
+3. Put a # (octothorpe) character at the beginning of a line. What did it do? Try to find out what this character does.
+  - An octothorpe made ruby ignore the code following it.

section1/ex2.rb

@@ -0,0 +1,20 @@
+Exercise
+# A comment, this is so you can read your program later.
+# Anything after the # is ignored by ruby.
+
+puts "I could have code like this." # and the comment after is ignored
+
+# You can also use a comment to "disable" or comment out a piece of code:
+# puts "This won't run."
+
+puts "This will run."
+
+Study Drills
+1. Find out if you were right about what the # character does and make sure you know what it's called (octothorpe or pound character)
+ - I was right about the octothorpe. The symbol is used to make note in the code without disturbing it. The symbol tells ruby to ignore it and everything after in that line.
+2. Take your ex2.rb file and review each line going backward. Start at the last line, and check each word in reverse against what you should have typed.
+
+3. Did you find more mistakes? Fix them.
+  - No
+4. Read what you typed above out loud, including saying each character by its name. Did you find more mistakes? Fix them.
+  - No

section1/ex3.rb

@@ -0,0 +1,31 @@
+Exercise
+#prints the statement so I know what the code/equation is doing
+puts "I will now count my chickens:"
+#the amount of hens and roosters(integer) are calculated by the equation below
+puts "Hens #{25 + 30 / 6}"
+puts "Roosters #{100 - 25 * 3.0 % 4.0}"
+#prints a statment to know what the code/equation is now calculating
+puts "Now I will count the eggs:"
+#this equation calculates the amount of eggs into one integer/amount
+puts 3.0 + 2.0 + 1.0 - 5.2 + 4.0 % 2.1 - 1.3 / 4.0 + 6.5
+#asking a true or false question based on the equations
+puts "Is it true that 3 + 2 < 5 - 7?"
+#calculates this question in the equation to tell us if it is true or false
+puts 3.0 + 2.0 < 5.2 - 7.3
+#both line 16 and 17 are asking ruby to calculate the equations below.
+puts "What is 3 + 2? #{3.0 + 2.0}"
+puts "What is 5 - 7? #{5.2 - 7.3}"
+#this line loops back to the question on line 12. After the equations are calculated it is telling you that your asnwer is why the equation is false
+puts "Oh, that's why it's false."
+#prints a statement letting us know we are going to do more calculations
+puts "How about some more."
+#lines 23, 24, 25 are asking if eeach statement is true or false based on the calculations
+puts "Is it greater? #{5.2 > -2.0}"
+puts "Is it greater or equal? #{5.2 >= -2.0}"
+puts "Is it less or equal? #{5.2 <= -2.0}"
+
+Study Drills
+1. Above each line, use the # to write a comment to yourself explaining what the line does.
+2. Remember in Exercise 0 when you started irb? Start irb this way again and, using the math operators, use Ruby as a calculator.
+3. Find something you need to calculate and write a new .rb file that does it.
+4. Rewrite ex3.rb to use floating point numbers so it's more accurate. 20.0 is floating point.

section1/ex4.rb

@@ -0,0 +1,55 @@
+Exercise
+# the amount of cars in this scenario is 100
+cars = 100
+# the amount of space within the car for passengers is 4.0 in a car
+space_in_a_car = 4.0
+# this means there are 30 drivers available
+drivers = 30
+# this refers to the amount of passengers there are which happens to be 90
+passengers = 90
+# this refers to the amount of cars that are not driven. In this case it is the amount of cars minus dirvers which is 60
+cars_not_driven = cars - drivers
+# this variable represents how many cars will be driven based on the amount of drivers which is 30
+cars_driven = drivers
+# the carpool_capacity refers to how many people can carpool together which is the cars_driven multiplied by space_in_a_car
+carpool_capacity = cars_driven * space_in_a_car
+# this refers to the average amount of people that will ride in each car which is passengers divided by cars_driven
+average_passengers_per_car = passengers / cars_driven
+
+
+puts "There are #{cars} cars available."
+puts "There are only #{drivers} drivers available."
+puts "There will be #{cars_not_driven} empty cars today."
+puts "We can transport #{carpool_capacity} people today."
+puts "We have #{passengers} to carpool today."
+puts "We need to put about #{average_passengers_per_car} in each car."
+
+Study Drills
+
+```There are 100 cars available.```
+```There are only 30 drivers available.```
+```There will be 70 empty cars today.```
+```ex4.rb:14: undefined local variable or method "carpool_capacity" for
+    main:Object (NameError)```
+
+1. Explain this error in your own words. Make sure you use line numbers and explain why.
+  - In my own words I would say that you neglected to give a defined variable or a variable that was a float or integer.
+  - Say I printed this out but I neglected to define "carpool_capacity". It would look like this:
+  cars = 100
+space_in_a_car = 4.0
+drivers = 30
+passengers = 90
+cars_not_driven = cars - drivers
+cars_driven = drivers
+carpool_capacity =
+average_passengers_per_car = passengers / cars_driven
+  - The puts "We can transport #{carpool_capacity} people today" would not go through.
+
+2. I used 4.0 for space_in_a_car, but is that necessary? What happens if its just 4?
+  - 4.0 and 4 are technically the same number, but 4 is an integer and 4.0 is a float. If you just use 4 the output will just be an integer.
+
+3. Remember that 4.0 is a floating point number. It's just a number with a decimal point, and you need 4.0 instead of just 4 so that it is floating point.
+3. Write comments above each of the variable assignments.
+4. Make sure you know what = is called (equals) and that its purpose is to give data (numbers, strings, etc.) names (cars_driven, passengers).
+5. Remember that _ is an underscore character.
+6. Try running ruby from the Terminal as a calculator like you did before, and use variable names to do your calculations. Popular variable names are also i, x, and j.

section1/ex5.rb

@@ -0,0 +1,33 @@
+Exercise
+myname = "Kaelin E. Sleevi"
+myage = 23 #not a lie in 2009
+myheight = 175.26 #centimeters
+myweight = 61.29 #kilograms
+myeyes = 'Blue/Green/Yellow'
+myteeth = 'White'
+myhair = 'Red'
+
+puts "Let's talk about #{myname}."
+puts "She's #{myheight} inches tall."
+puts "She's #{myweight} pounds heavy."
+puts "Actually that's not too heavy."
+puts "She's got #{myeyes} eyes and #{myhair} hair."
+puts "Her teeth are usually #{myteeth} depending on the coffee."
+
+#this line is a little tricky, try to get it exactly right
+puts "If I add #{my_age}, #{my_height}, and #{my_weight} I get #{my_age + my_height + my_weight}."
+
+Study Drills
+1. Change all the variables so there is no my_ in front of each one. Make sure you change the name everywhere, not just where you used = to set them.
+
+2. Try to write some variables that convert the inches and pounds to centimeters and kilograms. Do not just type in the measurements. Work out the math in Ruby.
+irb(main):004:0> 12 * 5
+=> 60
+irb(main):005:0> 2.54 * 69
+=> 175.26
+irb(main):006:0>
+
+
+irb(main):006:0> 135 * 0.454
+=> 61.29
+irb(main):007:0>

section1/ex6.rb

@@ -0,0 +1,41 @@
+Exercise
+# this assigns the variable "types_of_people" to the number. That way you have 10 types of people for the equation
+types_of_people = 10
+# this is assigning the variable "x" to a sting that includes the variable types_of_people to print as a statement
+x = "There are #{types_of_people} types of people."
+# this line assigns the variable binary to "binary"
+binary = "binary"
+# this variable do_not is being assigned to the string "don't"
+do_not = "don't"
+# this assigns the variable "y" to a string that includes the variables binary and do_not in the printed statement
+y = "Those who know #{binary} and those who #{do_not}."
+# the shown variables here in line 13 and 14 are telling you that by putting "puts x/y" it will print the strings assigned to x/y as a statement.
+puts x
+puts y
+# the shown strings in line 16 and 17 tell ruby to print x/y within the strings shown below. Now the terminal will print "I said..."/"I also said..." with the strings x/y within that string.
+puts "I said: #{x}."
+puts "I also said: '#{y}'."
+# this assigns the vaiable of hilarious to false
+hilarious = false
+# this is a assignment of the joke_evaluation to the string below that also inclues the variable/string assigned above
+joke_evaluation = "Isn't that joke so funny?! #{hilarious}"
+# this action will print the string assigned to joke_evaluation in the terminal along with the assigned variable of hilarious to be "false"
+puts joke_evaluation
+# these next two lines show the assignment of the variables w/e to the strings below
+w = "This is the left side of..."
+e = "a string with a right side."
+# this action will print the strings assigned to w and e together. We know that because the two are being added together below. The addition of the two will print in the Terminal
+puts w + e
+
+Study Drills
+1. Go through this program and write a comment above each line explaining it.
+
+2. Find all the places where a string is put inside a string.
+  - Lines 5, 16, 17, and 21
+3. Are you sure there are only four places? How do you know? Maybe I like lying.
+  - Yes, the rest of the lines are just assigned to one string (there is not another defined variable within the other assignments) or are the action of puts and the variable assigned.
+4. Explain why adding the two strings w and e with + makes a longer string.
+  - It is adding two defined variables that are defined with strings together into one output.
+5. What happens when you change the strings to use ' (single-quote) instead of " (double-quote)? Do they still work? Try to guess why.
+  - It depends, in some cases here it will make no difference, but in the strings that include an apostrophe the single quotations will open and close the strings in the wrong places. It will not print the same.
+

section1/ex7.rb

@@ -0,0 +1,27 @@
+Exercise
+print "How old are you? "
+age = gets.chomp
+print "How tall are you? "
+height = gets.chomp
+print "How much do you weigh? "
+weight = gets.chomp
+
+puts "So, you're #{age} old, #{height} tall and #{weight} heavy."
+
+Study Drills
+1. Go online and find out what Rubys gets.chomp does.
+  - I found that the "gets" creates a new line and asks the user to input a integer, variable, float, etc. and gets.chomp does the same thing except that it does not create a new line. gets.chomp allows a user to input as well as "gets", but there will not be a new line that is added after the string.
+
+2. Can you find other ways to use it? Try some of the samples you find.
+You can use it ask questions to the user, play a game or run through the game play, you can use it to have users put their own information into the code.
+
+3. Write another "form" like this to ask some other questions.
+
+print "What is your favorite food?"
+food = gets.chomp
+print "What dessert do you like?"
+dessert = gets.chomp
+print "What would you like to drink?"
+drink = gets.chomp
+
+puts "So, you like #{food}, you would like #{dessert} and want #{drink} for a drink."

section1/exercises/booleans.rb

@@ -10,7 +10,10 @@
 p 7 > 2
 
 # YOU DO: print to the terminal the result of "hello" is equal to "Hello":
+p "hello" == "Hello"
 
 # YOU DO: print to the terminal the result of 3 is not equal to 4:
+p 3 < 4
 
 # YOU DO: print to the terminal the result of 4 is less than or equal to 5:
+p 4 <= 5

section1/exercises/interpolation.rb

@@ -15,20 +15,24 @@
 speedy = "quick red fox"
 slow_poke = "lazy brown dog"
 
-p # YOUR CODE HERE
-
+# YOUR CODE HERE
+p "The #{speedy} jumped over the #{slow_poke}."
 # Write code that uses the variables below to form a string that reads
 # "In a predictable result, the tortoise beat the hare!":
 slow_poke = "tortoise"
 speedy = "hare"
 
 # YOUR CODE HERE
-
+p "In a predictable result, the #{slow_poke} beat the #{speedy}!"
 
 # YOU DO:
-# Declare three variables, name/content/data type of your choice. Think carefully 
-# about what you name the variables. Remember, the goal is to be concise but 
-# descriptive (it's a hard balance!) Then, print ONE sentence that incorporates 
+# Declare three variables, name/content/data type of your choice. Think carefully
+# about what you name the variables. Remember, the goal is to be concise but
+# descriptive (it's a hard balance!) Then, print ONE sentence that incorporates
 # all THREE variables.
+my_job = "barista"
+my_school = "Turing"
+my_goal = "Software Engineer"
 
 # YOUR CODE HERE
+p "I am currently a #{my_job} full time and I go to #{my_school} so that I can become a #{my_goal}!"

section1/exercises/loops.rb

@@ -10,13 +10,15 @@
 
 # Write code that prints the sum of 2 plus 2 seven times:
 7.times do
-  # YOUR CODE HERE
+  p 2 + 2
 end
 
 # Write code that prints the phrase 'She sells seashells down by the seashore'
-# ten times:
-# YOUR CODE HERE
-
+10. times do
+  p "She sells seashells down by the seashore"
+end
 
 # Write code that prints the result of 5 + 7 a total of 9 timees
-# YOUR CODE HERE
+9. times do
+  p 5 + 7
+end

section1/exercises/numbers.rb

@@ -7,10 +7,10 @@
 p 2 + 2
 
 # Write code that prints the result of 7 subtracted from 83:
-p #YOUR CODE HERE
+p 83 - 7
 
 # Write code that prints the result of 6 multiplied by 53:
-# YOUR CODE HERE
+p 6 * 53
 
 # Write code that prints the result of the modulo of 10 into 54:
-# YOUR CODE HERE
+p 10 % 54

section1/exercises/strings.rb

@@ -7,10 +7,10 @@
 p "Alan Turing"
 
 # Write code that prints `Welcome to Turing!` to the terminal:
-p #YOUR CODE HERE
+p "Welcome to Turing!"
 
 # Write code that prints `99 bottles of pop on the wall...` to the terminal:
-# YOUR CODE HERE
+p "99 bottles of pop on the wall..."
 
 # Write out code to print one line from your favorite song or movie.
-# YOUR CODE HERE
+p "I have everything I need, all of this is within me..."

section1/exercises/variables.rb

@@ -1,6 +1,6 @@
 # In the below exercises, write code that achieves
 # the desired result. To check your work, run this
-# file by entering the following command in your terminal: 
+# file by entering the following command in your terminal:
 # `ruby section1/exercises/variables.rb`
 
 # Example: Write code that saves your name to a variable and
@@ -11,31 +11,33 @@
 # Write code that saves the string 'Dobby' to a variable and
 # prints what that variable holds to the terminal:
 house_elf = "Dobby"
-# YOUR CODE HERE
+p house_elf
 
 # Write code that saves the string 'Harry Potter must not return to Hogwarts!'
-# and prints what that variable holds to the terminal:
-# YOUR CODE HERE
+name = "Harry Potter"
+location = "Hogwarts"
+p "#{name} must not return to #{location}!"
 
 # Write code that adds 2 to the `students` variable and
 # prints the result:
 students = 22
-# YOUR CODE HERE
-p students
+new_students = 2
+p students + new_students
 
 # Write code that subracts 2 from the `students` variable and
 # prints the result:
-# YOUR CODE HERE
-p students
+students = 22
+leaving_students = 2
+p students - leaving_students
 
 
 # YOU DO:
-# Declare three variables, named `first_name`, `is_hungry` and `number_of_pets`. 
+# Declare three variables, named `first_name`, `is_hungry` and `number_of_pets`.
 # Store the appropriate data types in each.
 # print all three variables to the terminal.
 
 # IN WORDS:
-# How did you decide to use the data type you did for each of the three variables above? 
+# How did you decide to use the data type you did for each of the three variables above?
 
 # Explain.
 
@@ -57,4 +59,4 @@
 #-------------------
 
 # Did you run this file in your terminal to make sure everything printed out
-# to the terminal as you would expect? 
+# to the terminal as you would expect?