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Andrzej Krzemień

Member Since September 11, 2019

15,339

Total Points

•
3,867

JavaScript

3867 pts
Achievements

0 pts
Forum
•
3,338

Java

3337 pts
Achievements

1 pts
Forum
•
2,852

CSS

2852 pts
Achievements

0 pts
Forum
•
1,361

HTML

1361 pts
Achievements

0 pts
Forum
•
1,144

Development Tools

1144 pts
Achievements

0 pts
Forum
•
900

Design

900 pts
Achievements

0 pts
Forum
•
488

Databases

488 pts
Achievements

0 pts
Forum
•
40

Digital Literacy

40 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

174 Achievements

Achievement
File Uploads and Entity Updates in Spring + Hibernate

Spring with Hibernate

Achieved
Mar 16, 2020
Achievement
User Messages in Spring

Spring with Hibernate

Achieved
Mar 14, 2020
Achievement
Getting Started with CRUD in Spring + Hibernate

Spring with Hibernate

Achieved
Mar 14, 2020
Achievement
Data-Driven Application Design

Spring with Hibernate

Achieved
Mar 13, 2020
Achievement
Integrating Hibernate with Spring

Spring with Hibernate

Achieved
Mar 12, 2020
Achievement
Persisting Data with Hibernate

Hibernate Basics

Achieved
Mar 3, 2020
Achievement
Getting Started with Hibernate

Hibernate Basics

Achieved
Mar 3, 2020
Achievement
Data Persistence & ORMs

Hibernate Basics

Achieved
Mar 2, 2020
Achievement
Handling Errors When Manipulating Data

Modifying Data with SQL

Achieved
Mar 2, 2020
Achievement
Deleting Data from a Database

Modifying Data with SQL

Achieved
Mar 1, 2020
Achievement
Updating Data in a Database

Modifying Data with SQL

Achieved
Mar 1, 2020
Achievement
Adding Data to a Database

Modifying Data with SQL

Achieved
Mar 1, 2020
Achievement
Finding the Data You Want

SQL Basics

Achieved
Mar 1, 2020
Achievement
Getting Data from a Database

SQL Basics

Achieved
Feb 29, 2020
Achievement
Data, Databases and SQL

SQL Basics

Achieved
Feb 29, 2020
Achievement
Using the MVC Architecture with Spring

Spring Basics

Achieved
Feb 28, 2020
Achievement
Modeling, Storing, and Presenting Data with Spring

Spring Basics

Achieved
Feb 28, 2020
Achievement
Creating Spring Controllers and Thymeleaf Views

Spring Basics

Achieved
Feb 27, 2020
Achievement
Spring Components and Configuring Our App

Spring Basics

Achieved
Feb 27, 2020
Achievement
Setting Up Your Local Environment for Spring Development

Spring Basics

Achieved
Feb 27, 2020
Achievement
Writing Your Own Java Annotation

Java Annotations

Achieved
Feb 26, 2020
Achievement
Using Java's Built-In Annotations

Java Annotations

Achieved
Feb 26, 2020
Achievement
Bells and Whistles

Intro to Java Web Development with Spark

Achieved
Feb 26, 2020
Achievement
Diving into Web Development

Intro to Java Web Development with Spark

Achieved
Feb 25, 2020
Achievement
GET and POST Requests in a Browser

HTTP Basics

Achieved
Feb 23, 2020
Achievement
Using Slack Effectively

Slack for the Techdegree

Achieved
Feb 17, 2020
Achievement
Introducing Slack for the Techdegree

Slack for the Techdegree

Achieved
Feb 16, 2020
Achievement
Introduction to HTTP

HTTP Basics

Achieved
Feb 14, 2020
Achievement
What to Test

Unit Testing in Java

Achieved
Feb 8, 2020
Achievement
How To Test

Unit Testing in Java

Achieved
Feb 7, 2020
Achievement
Why Test

Unit Testing in Java

Achieved
Feb 7, 2020
Achievement
Modular Media Queries

Modular CSS with Sass

Achieved
Feb 6, 2020
Achievement
Sass Grid System

Modular CSS with Sass

Achieved
Feb 6, 2020
Achievement
SMACSS and Sass

Modular CSS with Sass

Achieved
Feb 6, 2020
Achievement
Sass and BEM

Modular CSS with Sass

Achieved
Feb 5, 2020
Achievement
Getting Modular with Mixins and Functions

Modular CSS with Sass

Achieved
Feb 5, 2020
Achievement
Java Maps

Java Maps

Achieved
Feb 1, 2020
Achievement
Java Lists

Java Lists

Achieved
Feb 1, 2020
Achievement
Generics in Java

Generics in Java

Achieved
Feb 1, 2020
Achievement
Interfaces in Java

Interfaces in Java

Achieved
Jan 31, 2020
Achievement
Java Inheritance

Inheritance in Java

Achieved
Jan 30, 2020
Achievement
Gotchas and Wins

Java Arrays

Achieved
Jan 30, 2020
Achievement
Iteration

Java Arrays

Achieved
Jan 30, 2020
Achievement
Creation

Java Arrays

Achieved
Jan 28, 2020
Achievement
Delivering the MVP

Java Objects

Achieved
Jan 27, 2020
Achievement
Creating the MVP

Java Objects

Achieved
Jan 24, 2020
Achievement
Harnessing the Power of Objects

Java Objects

Achieved
Jan 22, 2020
Achievement
Meet Objects

Java Objects

Achieved
Jan 21, 2020
Achievement
Perfecting the Prototype

Java Basics

Achieved
Jan 19, 2020
Achievement
Using your New Tools

Java Basics

Achieved
Jan 19, 2020
Achievement
Getting Started with Java

Java Basics

Achieved
Jan 18, 2020
Achievement
Going Further with Grid Layout

CSS Grid Layout

Achieved
Jan 17, 2020
Achievement
Flexible Sized Grids

CSS Grid Layout

Achieved
Jan 17, 2020
Achievement
Introducing Grid Layout

CSS Grid Layout

Achieved
Jan 17, 2020
Achievement
Going Further with Type

Typography for Designers

Achieved
Jan 17, 2020
Achievement
Laying Out Type

Typography for Designers

Achieved
Jan 16, 2020
Achievement
Web Typography

Typography for Designers

Achieved
Jan 15, 2020
Achievement
How to Choose and Use Fonts

Typography for Designers

Achieved
Jan 14, 2020
Achievement
Introduction to Typography

Typography for Designers

Achieved
Jan 14, 2020
Achievement
Add Reusable Logic to Your Sass

Sass Basics

Achieved
Jan 14, 2020
Achievement
Write Smart and Efficient CSS with Sass

Sass Basics

Achieved
Jan 13, 2020
Achievement
Improve Your Workflow with Sass

Sass Basics

Achieved
Jan 7, 2020
Achievement
Getting Started with Sass

Sass Basics

Achieved
Jan 5, 2020
Achievement
Keyframe and Line Drawing Animations

Animating SVG with CSS

Achieved
Jan 5, 2020
Achievement
Transitions and Transforms

Animating SVG with CSS

Achieved
Jan 3, 2020
Achievement
Creating an SVG

SVG Basics

Achieved
Jan 3, 2020
Achievement
Introduction to SVG

SVG Basics

Achieved
Jan 2, 2020
Achievement
Adding 3D Effects with CSS

CSS Transitions and Transforms

Achieved
Jan 2, 2020
Achievement
Getting Started with CSS Transforms

CSS Transitions and Transforms

Achieved
Jan 2, 2020
Achievement
Transition Timing Functions and Delays

CSS Transitions and Transforms

Achieved
Jan 1, 2020
Achievement
Getting Started with CSS Transitions

CSS Transitions and Transforms

Achieved
Jan 1, 2020
Achievement
Design Patterns

Prototyping in the Browser

Achieved
Jan 1, 2020
Achievement
Page Layout

Prototyping in the Browser

Achieved
Dec 30, 2019
Achievement
Final Project: Create a Typographic Site

Web Typography

Achieved
Dec 30, 2019
Achievement
Laying Out Type for the Web

Web Typography

Achieved
Dec 19, 2019
Achievement
Basic Web Typography

Web Typography

Achieved
Dec 17, 2019
Achievement
How to Choose and Use Webfonts

Web Typography

Achieved
Dec 17, 2019
Achievement
Introduction to Typography

Web Typography

Achieved
Dec 15, 2019
Achievement
Exploration

Web Design Process

Achieved
Dec 14, 2019
Achievement
Discovery

Web Design Process

Achieved
Dec 10, 2019
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Dec 7, 2019
Achievement
Testing for Accessibility

Web Accessibility Compliance

Achieved
Dec 5, 2019
Achievement
Mobile Accessibility

Web Accessibility Compliance

Achieved
Dec 5, 2019
Achievement
Accessible UI Patterns

Web Accessibility Compliance

Achieved
Dec 5, 2019
Achievement
Semantic HTML and WAI-ARIA

Web Accessibility Compliance

Achieved
Dec 5, 2019
Achievement
WCAG 2.0 (and Other Standards)

Web Accessibility Compliance

Achieved
Dec 4, 2019
Achievement
Access for Everybody

Web Accessibility Compliance

Achieved
Dec 4, 2019
Achievement
Getters and Setters

Object-Oriented JavaScript

Achieved
Dec 2, 2019
Achievement
Working with Classes in JavaScript

Object-Oriented JavaScript

Achieved
Dec 2, 2019
Achievement
Object Basics

Object-Oriented JavaScript

Achieved
Dec 2, 2019
Achievement
Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achieved
Dec 1, 2019
Achievement
Exploring Async/Await

Asynchronous Programming with JavaScript

Achieved
Nov 30, 2019
Achievement
Understanding Promises

Asynchronous Programming with JavaScript

Achieved
Nov 30, 2019
Achievement
Asynchronous JavaScript with Callbacks

Asynchronous Programming with JavaScript

Achieved
Nov 29, 2019
Achievement
What is Asynchronous Programming?

Asynchronous Programming with JavaScript

Achieved
Nov 29, 2019
Achievement
Captioning Video

HTML Video and Audio

Achieved
Nov 28, 2019
Achievement
Media Basics

HTML Video and Audio

Achieved
Nov 28, 2019
Achievement
Structuring Tables

HTML Tables

Achieved
Nov 28, 2019
Achievement
Table Basics

HTML Tables

Achieved
Nov 28, 2019
Achievement
Building Forms With Bootstrap

Bootstrap Basics

Achieved
Nov 28, 2019
Achievement
Using Bootstrap Components

Bootstrap Basics

Achieved
Nov 27, 2019
Achievement
Responsive Layouts With the Bootstrap Grid

Bootstrap Basics

Achieved
Nov 25, 2019
Achievement
Getting to Know Bootstrap 4

Bootstrap Basics

Achieved
Nov 24, 2019
Achievement
Advanced Selectors

CSS Selectors

Achieved
Nov 24, 2019
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Nov 24, 2019
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Nov 24, 2019
Achievement
Choosing Options

HTML Forms

Achieved
Nov 23, 2019
Achievement
Organizing Forms

HTML Forms

Achieved
Nov 22, 2019
Achievement
Form Basics

HTML Forms

Achieved
Nov 22, 2019
Achievement
Building a Layout with Flexbox

CSS Flexbox Layout

Achieved
Nov 22, 2019
Achievement
Flexbox Properties

CSS Flexbox Layout

Achieved
Nov 21, 2019
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Nov 21, 2019
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Nov 21, 2019
Achievement
Media Queries

Responsive Layouts

Achieved
Nov 21, 2019
Achievement
Responsive Theory

Responsive Layouts

Achieved
Nov 20, 2019
Achievement
Positioning Page Content

CSS Layout Basics

Achieved
Nov 20, 2019
Achievement
CSS Layout Project

CSS Layout Basics

Achieved
Nov 20, 2019
Achievement
Page Layout with the Float Property

CSS Layout Basics

Achieved
Nov 20, 2019
Achievement
Controlling Layout with CSS Display Modes

CSS Layout Basics

Achieved
Nov 19, 2019
Achievement
Getting Started with CSS Layout

CSS Layout Basics

Achieved
Nov 19, 2019
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
Nov 18, 2019
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
Nov 18, 2019
Achievement
Basic Layout

CSS Basics (2014)

Achieved
Nov 17, 2019
Achievement
The Box Model

CSS Basics (2014)

Achieved
Nov 17, 2019
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
Nov 16, 2019
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
Nov 16, 2019
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
Nov 15, 2019
Achievement
Going Further with HTML

HTML Basics

Achieved
Nov 15, 2019
Achievement
Images, Text and Links

HTML Basics

Achieved
Nov 14, 2019
Achievement
Structuring Your Content

HTML Basics

Achieved
Nov 14, 2019
Achievement
Getting Started With HTML

HTML Basics

Achieved
Nov 13, 2019
Achievement
Adding a New Web Page

Introduction to HTML and CSS (2016)

Achieved
Nov 13, 2019
Achievement
Make It Beautiful with CSS

Introduction to HTML and CSS (2016)

Achieved
Nov 13, 2019
Achievement
HTML: The Structural Foundation of Web Pages and Applications

Introduction to HTML and CSS (2016)

Achieved
Nov 13, 2019
Achievement
Getting Familiar with HTML and CSS

Introduction to HTML and CSS (2016)

Achieved
Nov 12, 2019
Achievement
Getting Started with Angular

AngularJS Basics (1.x)

Achieved
Nov 12, 2019
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Nov 6, 2019
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Nov 5, 2019
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Nov 5, 2019
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Oct 31, 2019
Achievement
Working with jQuery Collections (2017)

jQuery Basics

Achieved
Oct 31, 2019
Achievement
Understanding jQuery Events and DOM Traversal (2017)

jQuery Basics

Achieved
Oct 26, 2019
Achievement
Introducing jQuery (2017)

jQuery Basics

Achieved
Oct 26, 2019
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Oct 26, 2019
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Oct 25, 2019
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Oct 23, 2019
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Oct 22, 2019
Achievement
Using a jQuery Carousel

Using jQuery Plugins

Achieved
Oct 22, 2019
Achievement
Add a Sticky Navigation Bar

Using jQuery Plugins

Achieved
Oct 17, 2019
Achievement
Introducing jQuery Plugins

Using jQuery Plugins

Achieved
Oct 17, 2019
Achievement
Improving the Application Code

DOM Scripting By Example

Achieved
Oct 17, 2019
Achievement
Editing and Filtering Names

DOM Scripting By Example

Achieved
Oct 16, 2019
Achievement
Adding and Removing Names

DOM Scripting By Example

Achieved
Oct 15, 2019
Achievement
Traversing the DOM

JavaScript and the DOM (Retiring)

Achieved
Oct 15, 2019
Achievement
Responding to User Interaction

Interacting with the DOM

Achieved
Oct 14, 2019
Achievement
Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achieved
Oct 14, 2019
Achievement
Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achieved
Oct 11, 2019
Achievement
The Browser Environment

JavaScript and the DOM (Retiring)

Achieved
Oct 5, 2019
Achievement
Create Function Using Arrow Syntax

Getting Started With ES2015

Achieved
Oct 5, 2019
Achievement
Using Template Literals

Getting Started With ES2015

Achieved
Oct 5, 2019
Achievement
Defining Variables With let and const

Getting Started With ES2015

Achieved
Oct 5, 2019
Achievement
JavaScript Tools and Workflows

The Landscape of JavaScript

Achieved
Sep 27, 2019
Achievement
JavaScript is Everywhere

The Landscape of JavaScript

Achieved
Sep 26, 2019
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Sep 25, 2019
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Sep 24, 2019
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Sep 17, 2019
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Sep 17, 2019
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Sep 15, 2019
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Sep 14, 2019
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Sep 13, 2019
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Sep 12, 2019
Achievement
Finishing the Game

Introducing JavaScript

Achieved
Sep 11, 2019
Achievement
Introducing JavaScript

Introducing JavaScript

Achieved
Sep 11, 2019
Achievement
Newbie

Achieved
Sep 11, 2019