- Running tasks concurrently on multiple threads
- getExternalFilesDir (Context)
- getSharedPreferences (Context)
- scheduleAtFixedRate (ScheduledExecutorService)
- SocketTimeoutException (java.net)
This exception is thrown when a timeout expired on a socket read or accept
operation.
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- PriorityQueue (java.util)
A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
- UUID (java.util)
UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
- Filter (javax.servlet)
A filter is an object that performs filtering tasks on either the request to a
resource (a servlet o
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