- Running tasks concurrently on multiple threads
- getExternalFilesDir (Context)
- putExtra (Intent)
- onCreateOptionsMenu (Activity)
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- Selector (java.nio.channels)
A controller for the selection of SelectableChannel objects. Selectable channels
can be registered w
- NumberFormat (java.text)
The abstract base class for all number formats. This class provides the
interface for formatting and
- Date (java.util)
A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
- Dictionary (java.util)
Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
- Set (java.util)
A Set is a data structure which does not allow duplicate elements.
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