- Reading from database using SQL prepared statement
- runOnUiThread (Activity)
- putExtra (Intent)
- scheduleAtFixedRate (Timer)
- ConnectException (java.net)
A ConnectException is thrown if a connection cannot be established to a remote
host on a specific po
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- Executors (java.util.concurrent)
Factory and utility methods for Executor, ExecutorService,
ScheduledExecutorService, ThreadFactory,
- ReentrantLock (java.util.concurrent.locks)
A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
- Reference (javax.naming)
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