spencerwi

import java.util.List;
import java.util.ArrayList;
import java.util.stream.*;
import java.util.Comparator;
import java.util.Collections;
import java.util.Optional;
import java.util.Random;

class Java8Demo {
    private static final String[] poolOfFirstNames = { "Joe", "Paul", "John", "Samantha", "Amanda", "Karen" };

spencerwi

(ql:quickload :ip-interfaces)

(defun ip-as-string (interface)
  (format nil "~{~A~^~.~}" (map 'list (lambda (x) x) (ip-interfaces:ip-interface-address interface))))

(defun print-interface-ip (interface)
  (format t "~A: ~A~%" (ip-interfaces:ip-interface-name interface) (ip-as-string interface)))
  
(loop for interface in (ip-interfaces:get-ip-interfaces)
  do (print-interface-ip interface))

spencerwi

#!/usr/bin/env runhaskell

module JavaPropsToEnvVars where

import Data.List (break, stripPrefix)

type PropertyName = String
type PropertyValue = String

type Property = (PropertyName, PropertyValue)

spencerwi

#Colors
BACKGROUND=black
FOREGROUND=white

setw -g status-bg $BACKGROUND
setw -g status-fg $FOREGROUND
setw -g window-status-current-bg $FOREGROUND
setw -g window-status-current-fg $BACKGROUND
set -g pane-active-border-bg default
set -g pane-active-border-fg $FOREGROUND

spencerwi

module StringSet = Set.Make(String)

let addr_to_string = function
    | Unix.ADDR_UNIX s           -> s
    | Unix.ADDR_INET (iaddr, _)  -> Unix.string_of_inet_addr iaddr

let get_local_ips () =
    Unix.getaddrinfo "localhost" "" []
    |> List.map (fun x -> x.Unix.ai_addr)

spencerwi

filetype plugin indent on
syntax on

set autoindent 

set expandtab
set shiftwidth=4
set tabstop=4
set smarttab

spencerwi

let person  = filter (\x -> name x == "John Smith") people
    age dob = getCurrentTime >>= return . (\now -> (diffDays now dob) `div` 365) . utctDay    
in
    [name person, dob person, age (dob person)]

spencerwi

SELECT
    Name, DoB, (current_date - DoB) as Age
FROM
    People
WHERE
    Name = 'John Smith'
;

spencerwi

// BAD:
List<PersonEntity> pes = someFetcherFunction.findByAgeGreaterThan(18);
if (pes.contains(currentPE)) { return "Hello, sir/madam."; }
else { return "This method is for adults only!"; }



// GOOD:
static Integer LEGAL_ADULTHOOD_AGE = 18; // in class PersonEntity
//...

spencerwi

List<PersonEntity> attendees = conference.getAttendees();
Collections.sort(new Comparator<PersonEntity> {
  @Override
  public int sort(PersonEntity person1, PersonEntity person2) {
    Date person1ArrivalDate = person1.getArrivalDate(),
         person2ArrivalDate = person2.getArrivalDate();
    if (person1ArrivalDate == null) person1ArrivalDate = DEFAULT_ARRIVAL_DATE;
    if (person2ArrivalDate == null) person2ArrivalDate = DEFAULT_ARRIVAL_DATE;
    int comparisonByArrivalDateResult = person1ArrivalDate.compareTo(person2ArrivalDate);
    if (comparisonByArrivalDateResult == 0) {