start to develop android applications

for developing android application you need download android sdk and eclipse and adt plugin .then create a sample project,when you run your applications it show your  result on simulator.

result is something like this


now you want change string .Android application main language is java but coding is different from normal java mobile  program;you have main class that open main.xml file  in   layout folder.This xml file have LinearLayout,and textview nudes.in in textview nude you see this code:android:text="@string/hello" that define some values that contained in values folder .Its names is hello .change string and run it again.just this!more comes in next posts
resource:android developer guide