Hello World is typically the simplest program to write in programming languages. It is considered as the first and basic step towards mastering the language.
Let us make an App which does nothing but displays “Hello World!” .
There is a detailed tutorial on the Android Developer site along-with basic troubleshooting.…

In these set of Tutorials, I’ll guide you through the basics right from setting up the environment to eventually develop apps for real-time usage in your Android based devices.
Prerequisites: None
Required Components…
1. The Eclipse IDE – I will be using Eclipse JEE – Helios SR1 version on x86 Windows Platform
2.