Java vs Android SDK [closed]

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http://stackoverflow.com – I want to know how similar Java is to the Android SDK. I am aware that the Android SDK uses Java, but I'm also aware there are many different things like manifest files and XML files and whatnot. I want to know if the SDK is similar enough that if I were to make a simple Swing based GUI program, would I be able to port it within a day? Is this realistic? (HowTos)