Assignment 9

Your assignment this week is to create two hashes to model and populate Tweets from two characters, either fictional or non-fictional, living or dead. You could use famous people, family people, historical people, fictional people, cartoon characters ... whoever you want that you would think would be appropriate for this class. Use the code in the before mentioned lecture note this week as your starting code template . You will need to rename the hashes and populate them with your own unique hash keys and tweets. Create Two Hashes to model "Tweets" from two characters Populate each hash with at least five (5) Tweets from your characters to entertain and amuse yourself Print the contents of each hash so you can see all the Tweets from each character add any of these items: Generate HTML code in your output to put your Hash Key and Tweet data inside an HTML Table Generate XML code in your output to put your Hash Key and Tweet data in XML format Delete a few of your Tweets Add Code to determine if a Tweet exists Sort your Tweets Research and utilize additional Hash Methods

Template

# Here is how you could initialize a set of tweets from Superman with a Hash.

# The hash key is the user name (superman) appended with a sequential integer

# number that we will start at 1. The combination of the user name

# and the next integer number provide a unique hash key for each Tweet.

superman = {

"superman1" => "Where did all the phone booths go?",

"superman2" => "This looks like a job for Superman!",

"superman3" => "Up, up, and away!",

"superman4" => "Krypton bred me, but it was Earth that gave me all I am. All that matters. \

It was Krypton that made me Superman...but it is the Earth that makes me human!",

"superman5" => "Do good to others and every man can be a Superman.",

"superman6" => "I am Superman. I stand for truth, for justice, and for the future.",

}

# Let's print our Tweets ... I put the key between parentheses to make it stand out

printf "A few tweets from your friend Superman: "

superman.each { |key, val| puts "(#{key}) #{val}" }

# Now let us set up our hash of Tweets for the Batman ... a bit darker ...

# Similar to the superman hash, let's initialize our hash of Tweets for the Batman.

batman = {

"batman1" => "Criminals are a terror. Hearts of the night. I must disguise my terror. I shall become a bat.",

"batman2" => "I wear a mask. And that mask, it's not to hide who I am, but to create what I am.",

"batman3" => "There's no reward in being right all the time.",

"batman4" => "The most powerful being on the planet and they kept him hidden on a small Kansas farm.",

"batman5" => "Criminals can never escape me. Bullets don't harm me. Nothing harms me. \

But I know pain. I know pain. Sometimes I share it with them."

}

# Here is how you could add to our Hash - just make sure your hash key is unique

batman ["batman6"] = "You can't fight fate, and you can't survive alone ... \

I can't help but notice that almost seems like a definition of who I am... A person who's trying to do both."

batman ["batman7"] = "Criminals of Gotham. You have eaten well. You've eaten Gotham's wealth. \

Its spirit. Your feast is nearly over."

batman ["batman8"] = "It's humiliating to admit Batman has his limits. \

That none of my abilities makes any difference if the mark doesn't believe."

# Over time, you would like a way to automatically generate a unique hash key. Here I set

# up a variable called batnum where I can increment it by 1 each time and append it to the string

# "batman" to form a unique key ... in this case, our hash key is now: "batman9"

batnum = 8

batnum = batnum + 1 # batnum is now 9

nextKey = "batman" + batnum.to_s() # convert batnum value to a string, and nextKey is now "batman9"

# Use our unique hash key (nextKey) to create a new Tweet in our hash

batman [nextKey] = "He calls himself Scarecrow. Psychologist turned psychopath. \

He preys on the innocent and instills them with fear ..."

# I could do this over and over again so it is automatically done each time Batman sends a new tweet.

# Here is another round ... but as a challenge, could you create a function that might add a

# given tweet to the hash with a next sequential unique key?

batnum +=1; # another way to increment batnum by 1, batnum is now 10

nextKey = "batman" + batnum.to_s() # nextKey is now "batman10"

# Here is another tweet added to our hash

batman [nextKey] = "... When I chose to wear my costume, it was to prey upon the criminals \

... and instill them with fear. The irony is not lost on me."

# Let's print out all the Tweets from the Batman

printf " A few darker tweets from the Batman (a.k.a., the Dark Knight): "

batman.each { |key, val| puts "(#{key}) #{val}" }