- Making http post requests using okhttp
- getApplicationContext (Context)
- scheduleAtFixedRate (ScheduledExecutorService)
- getSupportFragmentManager (FragmentActivity)
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- BlockingQueue (java.util.concurrent)
A java.util.Queue that additionally supports operations that wait for the queue
to become non-empty
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
- Color (java.awt)
The Color class is used to encapsulate colors in the default sRGB color space or
colors in arbitrary
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