- Making http post requests using okhttp
- getExternalFilesDir (Context)
- getSupportFragmentManager (FragmentActivity)
- addToBackStack (FragmentTransaction)
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- Runnable (java.lang)
Represents a command that can be executed. Often used to run code in a different
Thread.
- NumberFormat (java.text)
The abstract base class for all number formats. This class provides the
interface for formatting and
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- Collectors (java.util.stream)
- Font (java.awt)
The Font class represents fonts, which are used to render text in a visible way.
A font provides the
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