how to run a simple java program in android studio - java

here is the image of code. I am having problem in running the above program in android studio please help. Android studio is not giving the desired result.

Its working fine after clean and rebuild the project. thanks for your help guys.

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Image provided.
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Solve that.
Because of Sanction of IRAN, I had to download Android Studio from some Other site, that seems to be corrupted, After Downloading Android Studio From Google, the Problem Was Solved!
:)

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