Need beginner Android project Intent and exit button
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I need an Android project that contains 3 classes (3 activities)
Each Activity contains 3 Buttons. 2 buttons to move between the activities and the third one is Exit button.

more clear discuss:

In Activity1 there are 3 buttons (call Activity2, call Activity3, Exit)   
In Activity2 there are 3 buttons (call Activity1, call Activity3, Exit)  
In Activity3 there are 3 buttons (call Activity1, call Activity2, Exit)

How to do that in Eclipse using Java ??  
I tried to use Intent but I failed :(   
Please help me