- Running tasks concurrently on multiple threads
- getExternalFilesDir (Context)
- getSystemService (Context)
- notifyDataSetChanged (ArrayAdapter)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- ServerSocket (java.net)
This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
- SocketException (java.net)
This SocketException may be thrown during socket creation or setting options,
and is the superclass
- TimerTask (java.util)
The TimerTask class represents a task to run at a specified time. The task may
be run once or repeat
- Handler (java.util.logging)
A Handler object accepts a logging request and exports the desired messages to a
target, for example
- Component (java.awt)
A component is an object having a graphical representation that can be displayed
on the screen and t
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