Although this step isn’t absolutely necessary, the Android SDK includes the Android Development Tools (ADT) plug-in for Eclipse that makes development easier and faster. A version of Eclipse is available from the Ubuntu repositories, but it is not the same version that is recommended by Android developers. Search the Eclipse website at www.eclipse.org/downloads/ to find the exact version that is recommended at http://developer.android.com/sdk/installing.html. You are also welcome to try your luck with the version in the Ubuntu repositories (called
eclipse), but you might find it difficult to get support or assistance from Android developers if you do so. Your choice.