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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 currently be written in Java, Python, or Go. This tutorial covers Java. If you're more likely to use Python to build your applications, see Getting Started: Python. If you want to use Go, see Getting Started: Go.
In this tutorial, you will learn how to:
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.
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.