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cesar,

 

there are many project template when you creae new project and choose one of them,, one is console where you see outout in command promt window, others are library type, for UI you need to select desktop or web application.  where you can use UI element like lables, text, button etc. 

Hi,

 

You are using console Application. If you want to see your output then you need to write.

 

Console.WriteLine( Y.A);

Console.ReadLine()

Hi César,

 

I think your application is a console application. if you display this output text fields and label create a web application or desktop application using below code.