Android application is not copied to the device memory under Eclipse

I coded an Android application under eclipse I run th开发者_开发百科is application The emulators starts and show the Android desktop But my application is not shown/added on it. Neither the main activity is started. What to do ?

Go to Settings>>Applications>>Manage Applications then click on the All tab and here you can find the list of the applications installed on your device or emulator. So just ensure it wheather your application is installed or not.

I am a beginner too and so far I only manage to test the samples that are packaged with the platform. I had the same problem but when I change the emulator platform and API level everything is working. Maybe you try to make few different emulators and test run your app on different emulator