Welcome to Google App Engine! Creating an App Engine application is easy, and only takes a few minutes. And it's free to start: upload your app and share it with users right away, at no charge and with no commitment required.

Google App Engine applications can be written in the Java, Python, Go or PHP programming languages. This tutorial covers Java. If you would prefer to use Python, Go or PHP to build your applications, see the Python 2.7, Go or PHP guides.

In this tutorial, you will learn how to:

• build an App Engine application using standard Java web technologies, such as servlets and JSPs
• create an App Engine Java project with Eclipse, and without
• use the Google Plugin for Eclipse for App Engine development
• use the App Engine datastore with the Datastore API
• integrate an App Engine application with Google Accounts for user authentication
• upload your app to App Engine

By the end of the tutorial, you will have implemented a working application, a simple guest book that lets users post messages to a public message board.

Next...

To get started developing Google App Engine Java applications, you download and set up the App Engine Java software development kit and related components.

Continue to Installing the Java SDK.

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