drhuffman12

# 
apt-get update | apt-get upgrade


# Install ant and dependancies. [Ignore errors about "libjli.so" missing; it appears to be a soft vs hard float java issue. We will replace Java in a later step.]
apt-get install ant -y

# Download Oracle Jdk 8 for Linux 32bit from: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
# ... The download should be a file like: jdk-8u20-linux-i586.tar.gz

drhuffman12

#!/usr/bin/ruby

# FILENAME: av_splitter.rb
#
# DESCRIPTION: Convert and split an audio/video file into 5 minute intervals of the specified target format and compression quality.
#
# USAGE:
#   Put your audio/video files into the "in" sub-folder, then run the 'audio_splitter.rb' ruby script w/syntax:
#     ruby -s audio_splitter.rb <format_out> '<bit_rate_info>' <debug_level>
#

drhuffman12

# Official site for the Ruby language: "https://www.ruby-lang.org/"

class C1
  attr :a, :b
  def initialize(a)
    @a = a
  end
  def self.hi
    puts 'hello world'

drhuffman12

# GIST: "pw_from_console.rb" under "https://gist.github.com/drhuffman12"
# If you're dealing with a Java character array (such as password characters that you read from the console), you can convert it to a JRuby string with the following Ruby code:

    jconsole = Java::java.lang.System.console()
    password = jconsole.readPassword()
    ruby_string = ''
    password.to_a.each {|c| ruby_string << c.chr}
    
    # .. do something with 'password' variable ..    
    puts "password_chars: #{password_chars.inspect}"

drhuffman12

=begin

https://gist.github.com/drhuffman12/a5ad839b71e8ca334a2a

  Problem statement:

    Create a class named PalindromeDetector.  Within that class, implement a 
    static function named GetPalindromeYears that takes a start and end date as parameters and 
    returns a distinct set of Dates in chronological order(inclusive of start and end dates)
    that, when formatted as MMddyyyy, are palindromes.

drhuffman12

#!/usr/bin/env bash
me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")"
# echo $me
if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ] || [ -z "$4" ]
then
  echo
  echo 'To create a Ruby app folder and configure it for RVM usage, use the following syntax:'
  echo
  echo '  bash --login './$me 'PROJ_ROOT PROJ_NAME PROJ_RUBY_VER PROJ_GEMSET_NAME'
  echo

drhuffman12

require "benchmark"
require "big"

# def fib(n : BigInt)
#   n < 2 ? n : fib(n-1) + fib(n-2)
# end 

struct BigInt
  def add!(other : BigInt) : BigInt
    LibGMP.add(self, self, other)

drhuffman12

# based on http://stackoverflow.com/questions/29718767/check-if-array-elements-are-power-of-two

require 'benchmark'

class Po2
  def self.via_to_s(n)
    (n.to_s(2) =~ /^10*$/) ? 0 : 1 # faster for more than about 100 numbers
  end

  def self.via_log(n)

drhuffman12

puts
longest_key = ENV.keys.max_by(&:length)
key_formatter = '%' + "#{longest_key.length}" + 's'
puts "longest_key: '#{longest_key}'"
puts "key_formatter: '#{key_formatter}'"
puts "ENV:"
puts
ENV.each_pair do |k,v|
  puts "#{key_formatter % k}: #{v}"
end

drhuffman12

def stars(y,scale,char);y>0 ? char * ((y*scale).round) : '';end
def curve(n);(0..n+1).each.collect{|x| y=Math.sin(Math::PI*2*x/n); [x, y]};end
def star_set(y,scale,char_neg,char_zero,char_pos); yn = y < 0 ? stars(-y,scale,char_neg) : ''; yp = y > 0 ? stars(y,scale,char_pos) : ''; ("%#{scale.round.to_i}s" % yn) + char_zero + ("%-#{scale.round.to_i}s" % yp); end
def star_set_def(y);star_set(y,10,'-','.','+');end
puts curve(16).collect{|n| star_set_def(n[1])+" #{n[0]}, #{n[1]}\n"}.join('')

=begin
          .           0, 0.0
          .++++       1, 0.3826834323650898