justinmusgrove

BaseCS reading list

A markdown file outlining BASECS articles as at task list to track progress.

• Jan 2, 2017 bits, bytes, building with binary
• Jan 9, 2017 hexes and other magical numbers
• Jan 16, 2017 What’s a Linked List, Anyway? [Part 1]
• Jan 23, 2017 What’s a Linked List, Anyway? [Part 2]
• Jan 30, 2017 stacks and overflows
• Feb 6, 2017 to queue or not to queue

justinmusgrove

# This is a sample build configuration for Ruby.
# Check our guides at https://confluence.atlassian.com/x/VYk8Lw for more examples.
# Only use spaces to indent your .yml configuration.
# -----
# You can specify a custom docker image from Docker Hub as your build environment.
image: ruby:2.3.0

pipelines:
  default:
    - step:

justinmusgrove

In markdown page:
{% assign titleScrubbed =  page[1] | scrubPageTitle %}

Jekyll plugin:
module Jekyll
  module ScrubPageTitle
    def scrubPageTitle(input)
      map = {"Java -" => "", "| Level Up Lunch" => ""}
	  re = Regexp.new(map.keys.map { |x| Regexp.escape(x) }.join('|'))
	  input = input.gsub(re, map)

justinmusgrove

sudo gem install jekyll --pre
Password:
Building native extensions.  This could take a while...
ERROR:  Error installing jekyll:
	ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... yes
checking for sys/select.h... yes
checking for poll.h... yes

justinmusgrove

IntStream stream1 = IntStream.of(1, 2, 3);
IntStream stream2 = IntStream.of(1, 2, 3);

int val = IntStream.concat(stream1, stream2).distinct().sum();

System.out.println(val);

justinmusgrove

@Test
public void test () {
		
	Set<Integer> test = Sets.newHashSet(1, 2, 3, 4);
		
	Set<Set<Integer>> elements = Sets.powerSet(test);
	
	List<Integer> test2 = elements.stream().filter(p -> p.size() == 3).collect(Collectors.toList());
	
	System.out.println(test2);

justinmusgrove

[
   {
      "context":"org.springframework.web.context.WebApplicationContext:/post-configure-actuator-non-boot-app",
      "parent":null,
      "beans":[
         {
            "bean":"componentConfig",
            "scope":"singleton",
            "type":"com.levelup.spring.config.ComponentConfig$$EnhancerByCGLIB$$13013792",
            "resource":"file [/Users/justinm/Documents/springsource/vfabric-tc-server-developer-2.9.3.RELEASE/base-instance/wtpwebapps/post-configure-actuator-non-boot-app/WEB-INF/classes/com/levelup/spring/config/ComponentConfig.class]",

justinmusgrove

static String bmiDescription (double bmi) {
	if (bmi < 18.5) {
		return "You are underweight.";
	} else {
		if (bmi > 25) {
			return "You are overweight.";
		} else {
			return "Your weight is optimal.";
		}
	}

justinmusgrove

@Test
public void test_convertListToMap () {

	// create a list
	List<Movie> movies = Lists.newArrayList();
	movies.add(new Movie(1, "The Shawshank Redemption"));
	movies.add(new Movie(2, "The Godfather"));
	
	// convert list to map 
	Map<Integer,Movie> mappedMovies = Maps.uniqueIndex(movies, new Function <Movie,Integer> () {

justinmusgrove

List<String> strings = new ArrayList<String>();
strings.add("one");
strings.add("two");
strings.add("three");

String firstElement = null;
if (!strings.isEmpty() && strings.size() == 1) {
  firstElement = strings.get(0);
}