Package names

The first thing that you will come across is something called a Package Name. It's quite easy to understand actually. A package name is simply like a reverse URL. Think of a package name as your app's domain name-just like a website, only in reverse. For instance, you can think of as a website's domain name; in exactly the same way, the naming convention of an Android app is the reverse of a website. So, you can name your app something like There is no strict rule that says that your package name must start from com, but it is the most commonly accepted convention. You can also name your package name randomly using your own set of conventions, such as so ...

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