Online courses directory (197)

In this course you’ll get hands-on experience making web applications accessible. You’ll understand when and why users need accessibility. Then you’ll dive into the “how”: making a page work properly with screen readers, and managing input focus (e.g. the highlight you see when tabbing through a form.) You’ll understand what “semantics” and “semantic markup” mean for web pages and add ARIA markup to enable a range of assistive devices. Finally, you’ll learn styling techniques that help users with partial vision navigate the your pages easily and reliability.

Taking this course will provide you with a basic foundation in Java syntax, which is the first step towards becoming a successful Java developer. You’ll learn how computers make decisions and how Java keeps track of information through variables and data types. You’ll learn to create conditional statements, functions, and loops to process information and solve problems. You’ll even learn to use IntelliJ, a Java IDE (Integrated Development Environment) that professional developers use, to build, compile, and debug your code. These are foundational programming skills, and mastering them is a must for all aspiring programmers.

Learn how to build web applications with Sinatra, an elegant and approachable web development micro-framework for Ruby.

Learn how to organize the code for your web apps, and why it's important. You’ll be using the MVC Design Pattern in the web application micro-framework, Sinatra.

This course will introduce you to web deployment platforms. You’ll begin by deploying your first web application to the Heroku platform, making it publicly available on the internet. In the process, you will learn about the underlying mechanics of web hosting. You will also learn how to configure your app, from accessing log output to configuring environment variables.

As the first course in the Android Developer Nanodegree, Developing Android Apps is the foundation of our advanced Android curriculum. This course blends theory and practice to help you build great apps the right way. In this course, you'll work with instructors step-by-step to build a cloud-connected Android app, and learn best practices of mobile development, and Android development in particular. ####[Download Udacity's Android app](https://play.google.com/store/apps/details?id=com.udacity.android) to keep learning wherever you go!

In this course, you will learn about the importance of data persistence when building an Android app. We'll introduce you to the fundamentals of SQL, the programming language needed to interact with an SQLite relational database. SQLite is a commonly used method to store large sets of data locally on an Android device. You'll also learn how to work with Content Providers, which help your data storage to be bug free and to be shared, if you choose, with other apps. If you’re curious about the road even farther ahead, these are the free courses that make up the Android Basics Nanodegree, in order: * Android Basics: User Interface * Android Basics: User Input * Android Basics: Multiscreen Apps * Android Basics: Networking * Android Basics: Data Storage (This Course)

Data science plays an important role in many industries. In facing massive amount of heterogeneous data, scalable machine learning and data mining algorithms and systems become extremely important for data scientists. The growth of volume, complexity and speed in data drives the need for scalable data analytic algorithms and systems. In this course, we study such algorithms and systems in the context of healthcare applications. In healthcare, large amounts of heterogeneous medical data have become available in various healthcare organizations (payers, providers, pharmaceuticals). This data could be an enabling resource for deriving insights for improving care delivery and reducing waste. The enormity and complexity of these datasets present great challenges in analyses and subsequent applications to a practical clinical environment.

The Time Series Forecasting course provides students with the foundational knowledge to build and apply time series forecasting models in a variety of business contexts. You will learn: * **The key components of time series data and forecasting models** * **How to use ETS (Error, Trend, Seasonality) models to make forecasts** * **How to use ARIMA (Autoregressive, Integrated, Moving Average) models to make forecasts** Throughout this course you’ll also learn the techniques to apply your knowledge in a data analytics program called Alteryx. This course is part of the Business Analyst Nanodegree Program.

The A/B Testing course provides students with the foundational knowledge to design and analyze A/B tests to create business insights and support decision making. You will learn: * **The fundamental principles of experiment design** * **How to design and analyze randomized design experiments** * **How to design and analyze matched-pair design experiments** Throughout this course you’ll also learn the techniques to apply your knowledge in a data analytics program called Alteryx. This course is part of the Business Analyst Nanodegree.

The Segmentation and Clustering course provides students with the foundational knowledge to build and apply clustering models to develop more sophisticated segmentation in business contexts. You will learn: - **The key concepts of segmentation and clustering, such as standardization vs. localization, distance, and scaling** - **The concepts of variable reduction and how to use principal components analysis (PCA) to prepare data for clustering models** - **How to choose between hierarchical and k-centroid clustering models** - **How to build and apply k-centroid clustering models** Throughout this course you’ll also learn the techniques to apply your knowledge in a data analytics program called Alteryx. This course is part of the Business Analyst Nanodegree Program.

Learn the basics of Android and Java programming, and take the first step on your journey to becoming an Android developer! This course is designed for students who are new to programming, and want to learn how to build Android apps. You don’t need any programming experience to take this course. If you’ve been using a smartphone to surf the web and chat with friends, then you’re our perfect target student! Learning anything new can be tough. We will walk you through the process of making Android apps, but to get the most out of this course, you must bring your enthusiasm for learning, and budget time on your calendar to learn with us. By the end of this course, you will have learned how to make your app interactive using buttons and changing text. You will have practiced those skills by making a basketball scores app, and you will have built a full coffee-ordering app. If you’re curious about the road even farther ahead, these are the free courses that make up the Android Basics Nanodegree, in order: * Android Basics: User Interface * Android Basics: User Input (This Course) * Android Basics: Multiscreen Apps * Android Basics: Networking * Android Basics: Data Storage

Learn the basics of Android and Java programming, and take the first step on your journey to becoming an Android developer! This course is designed for students who are new to programming, and want to learn how to build Android apps. You don’t need any programming experience to take this course. If you’ve been using a smartphone to surf the web and chat with friends, then you’re our perfect target student! Learning anything new can be tough. We will walk you through the process of making Android apps, but to get the most out of this course, you must bring your enthusiasm for learning, and budget time on your calendar to learn with us. By the end of this course, you will have learned how to build an app’s layout and then practiced those skills by making a birthday card app. If you’re curious about the road even farther ahead, these are the free courses that make up the Android Basics Nanodegree, in order: * Android Basics: User Interface (This Course) * Android Basics: User Input * Android Basics: Multiple App Screens * Android Basics: Networking * Android Basics: Data Storage

This course is designed for students who are new to virtual reality and want to learn about the principles of VR technology including optics, displays, stereopsis, tracking, and major hardware platforms. You don’t need any programming experience to get started. By the end of this course, you will have created and deployed a VR application. You will understand the physical principles of VR and you will use that knowledge to create a comfortable, high-performance VR application using Unity.

In this course, you’ll learn the the fundamentals of using the Unity Game Engine to build beautiful and performant VR scenes. Starting from basic game objects, you will learn about transforms and materials, so that you can position objects and make them look realistic. Next, you will experiment with animations and cameras in order to make our scenes more engaging in VR. And finally, you will add some complex lighting to your scene to really make your experience really stand out.

In this course, you’ll begin learning Swift, Apple's programming language for building iOS applications. You'll start with fundamentals and work your way towards understanding all the core principles necessary to get started creating your first app. At the end of the course, you'll complete a problem set of exercises designed to challenge your understanding of Swift and give you the opportunity to apply what you've learned.

With this course, you will learn about AutoLayout and how to use stack views and constraints to create pixel-perfect UIs. Also, you will take a deep dive and learn about some of the most commonly misunderstood properties affecting layout like distribution, alignment, content hugging, and compression resistance. Then, you will put all of this knowledge to use and start creating functional interfaces with multiple stack views and UI elements. In fact, you will recreate an interface from a very well known app. And, by the end of this course, you will be ready to create beautiful interfaces from scratch.

This course offers a quick practical introduction to Swift basics, including types, variables, constants, and functions. It combines syntax exercises with hands-on iOS development in Xcode. By the end of the course students will build their first iOS app, an app that creates and displays song lyrics customized to user input.

In this course, you'll explore popular iOS design patterns — the practical and battle-tested solutions to common problems that are used everyday by professional developers. You'll take a look at architectures and mechanisms that are used for constructing large, complex apps. And, by the end of this course, you'll have accumulated a reliable toolset of patterns that you can apply to your own projects.

Learn the fundamentals of JavaScript, the most popular programming language in web development.