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Stacks

Intro

Characteristics

• agnostic to data it contains
• how does data get in and out?

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Advanced topics

Functional Interfaces

• usecase for wildcards
• lambda expressions have types
• good for library building

// has ingoing type T and return type R
Function<T, R> -> R apply(T arg)

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Collection Operations

• operations available on the Collections class
• Algorithms, factories, utilities

Algorithms

• public static void Collections.rotate(List<?> l, int distance): takes the last element of the list, moves to beginning, and shuffles all others down. Distance is the number of times to do this
• public static void Collections.shuffle(List<?> l, Random rndm): random rearrangment of list items. Can accept a Random class object to determine the randomization
• public static void Collections.sort(List<T> l, Comparator<? super T> c): accepts a comparator to organize the list by

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Your “Diversity Problem” Has Nothing To Do With Recruiting

Katie Augsburger Employee Experience Strategist/Founding Partner at Future Work Design

reasons for diversified workplace

• risk, talent pool (changing), revenue loss, products and services (are worse), creates more inequality

what we've tried

• "how do people from marginalized communities find out about our organization"

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Creating Database Tables

• Data Definition Language (DDL) is a SQL subset for creating databases and tables
• most databases will have a GUI to create
• still good to know how to do it manually, especially for scripting

CREATE DATABASE

• not part of SQL standard, but is supported by most implementations
• USE DATABASE to scope future queries to a particular database

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Configure and use Spring Data JPA

Spring Data JPA

• reduces boilerplate

Create vs Update

• persist is just used for Creates
  • returns void, since the id is not created until after the object is saved

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Spring MVC 4 REST and AJAX

RestController

• Convenience annotation for annotating a Controller and ResponseBody at the same time
• Assumes each RequestMapping is going to return the body of it's request
• less verbose than having to define each method and it's response type
• no longer need to use the ContentNegotiatingViewResolver
  • but still can for fine tuning
• Example: EventsReportController.java

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How to work more collaboratively

• so many different tech tools, but people are hard to work with!
  • tech tools cannot fix the human problem
  • need to understand one another on a human basis
• "no, and" saying no is difficult, feels surrounded in negativity
• "yes, and" is additive, more diverse, collaberative
  • creates more open atmosphere
  • less afraid of making a mistake
• provide sense of positivity

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Ajax

ContentNegotiatingViewResolver

• uses the Accepts header which is sent using http headers
  • can also look at the file extension
• there can be multiple view resolvers
• will need additional JARs needed for the Marshaller (used to return JSON)

setup

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Properties

• allow certain properties / values to be availble app wide

XML config

• app.properties:

dbUsername=mysqlusername